By Steve (Steve2) on Saturday, September 22, 2001 - 09:06 pm: Edit

seems like going to 245-75 bites into fuel economy anyway. going to 235-85s -

do you have to install 4.10's?
do you have to install 24 sline shafts?

what can i except - good and bad from these - or should it keep it more convservative to 245-75 or 215-85s?

am going to install ome hd's
thanks in advance as always
steve

By nadim on Saturday, September 22, 2001 - 11:14 pm: Edit

Steve...

Your going to eventually get bitten by the 32" bug, so save the trouble and go ahead right away...I had the Trac Edges in 235/85 size and they were great, I had 10 spline axles then, and a conservative 2-3"...you would better get 4.1s for a manual instead of burning the clutch, but for an auto, I think you are safe...

The 235s are a wee bit narrawer than the 245s, but they again, they are ~1" taller, and when you need the floatation, you can air them down without sacrificing too much your clearence issues.

Nadim

By MTB on Sunday, September 23, 2001 - 01:54 am: Edit

245/75 extra 1/2" under the diff.
235/85 extra 1.5" under the diff.
Power loss with both more with 235/85
axles you already have 24 spline but not HD.
you can run your stock axles but there is always that chance you could snap them. But you can do it with stock tires. My understanding is that D-90 run the same axles as the Disco and they have 265/75. If you go lockers you want HD shafts.
4.10 will help with the power loss. Pending on if you tow, have any large hills to climb could be slow going.
will have to trim on both tires but maybe a little more with 235's.
Noticing the power loss I have read that going from 245's to the 235/85 it is not that bad. But from stock to 235/85 you notice it but some say not bad.
235 should be cheaper $$$
I have talked to some with 245's and they will go with 235/85 next.
I am in the same boat while waiting for my RT 2" springs what size tires. well I said the hell with it I know I want 235/85.

Good luck
Michael B

By Steve (Steve2) on Sunday, September 23, 2001 - 05:36 am: Edit

thanks guys -

i have a 99 d1 automatic - i remember someone said there was a subtle change in the final ratio - was this change in my favour toward 235-85s or against?

also is going to 235-85s with open diffs asking for trouble? i don't intend to go rock crawling -would just like to able to keep up with others on moderate trails in moab...

steve

By Jose A Cabrera (Jcabrera) on Sunday, September 23, 2001 - 07:12 am: Edit

Steve,
Let me know what you decide. I will need new shoes in less than 10K miles and I was considering 235/85/16 (BFG or G/Y MTR). If there are major mods I won�t spend the money and buy 235/70�s

By Redsrover (Redsrover) on Sunday, September 23, 2001 - 10:11 am: Edit

Steve,

Get the 235 85's and don't look back. I went from 245s to 235s and they look better and perform great too. I put on BFG MT's by the way. Power loss is obvious. But not worth complaining about. Oh, keep your stock gears and you will be fine. Trim the rear fenders a bit.

Red

By Jose A Cabrera (Jcabrera) on Sunday, September 23, 2001 - 12:51 pm: Edit

Red did you have to any other mod to your car besides the normal trimming?

By Redsrover (Redsrover) on Sunday, September 23, 2001 - 01:48 pm: Edit

I already had OME HD front and extra HD in the rear. Before the 235 85s I had 245 75s. The trimming I did for the 245s was enough for the 235s I have now. Check my gallery for recent shots of the tires. (Ron Ward)

Red

By Eric N (Grnrvr) on Sunday, September 23, 2001 - 02:34 pm: Edit

"i have a 99 d1 automatic - i remember someone said there was a subtle change in the final ratio - was this change in my favour toward 235-85s or against?"

As I have a 98 I'm interested in this as well as I believe the 99 and 98 D1s are the same.

By Redsrover (Redsrover) on Sunday, September 23, 2001 - 02:45 pm: Edit

Eric,

I think the change in final drive ratio is to an even higher ratio, in other words, NOT in favor of 235 85s, but in favor of stock tires at highway speeds. I may be wrong, but I thought I read this someplace, maybe the RRO list?

Red

By Brad Bradford (Brad) on Sunday, September 23, 2001 - 08:41 pm: Edit

235/85 are very good tires, power loss isn't that bad when you consider what you have to start out with. Hills will slow you down, but I can still run 85mph.

By Jose A Cabrera (Jcabrera) on Monday, September 24, 2001 - 12:16 pm: Edit

Just came back from Pep Boys. $379.99 for 4 Enforcers m/t 235/85

By Anon234 on Monday, September 24, 2001 - 12:23 pm: Edit

How bad is the gas mileage with 235/85. Will putting 4:10 gearing bring the gas mileage back to normal?

By Jose A Cabrera (Jcabrera) on Monday, September 24, 2001 - 12:29 pm: Edit

wouldn't you also need taller bump stopper in the rear and front for 235/85? If so, where do you get them and fro how much?

By Bluegill (Bluegill) on Monday, September 24, 2001 - 12:41 pm: Edit

all these "mods" associated with 235/85s aren't really needed...they're only slightly larger tires, afterall (as opposed to 35" swampers). After a bit of suspension lift, gears, bump stops, speedo/odo calibration, gas mileage, etc are all considerations, but not absolutes...

my two cents

By Jose A Cabrera (Jcabrera) on Monday, September 24, 2001 - 12:57 pm: Edit

Bluegill,
So, what you mean is that when fitting 235/85, all you MUST do is trim the rear fenders?
No taller bump stop or nothing. Excuse my ignorance, I just want to make sure I can fit 235/85 ( I do have 2 1/2 RoverTym front and rear) and the rest is stock.

By John on Monday, September 24, 2001 - 01:12 pm: Edit

Your truck will let you know about bumpstops. Straight down susp. compression like coming straight off ledges will create inner wheel well rubbing if its that close. But proberly not as Blue noted. Trying them will let you know.

By Danno on Monday, September 24, 2001 - 01:12 pm: Edit

Jose,
sounds like you are good to go. i went with 235/85's when i had the small OME lift. now i have the RTE 3" springs

By Danno on Monday, September 24, 2001 - 01:14 pm: Edit

justg need to trim that is...

By Bluegill (Bluegill) on Monday, September 24, 2001 - 01:17 pm: Edit

With your RTE lift, you should be OK. You'll really have to get out into a real situation and stuff those tires to find out whether or not you have to trim. You probably will have to trim a bit, but 2.5" is a pretty good lift...

When you get on the highway and start driving up hills, you may want those 4.10 gears, but it's not like your Disco will be inoperable with lifted suspension, 235/85s, and stock everything else...

By Jose A Cabrera (Jcabrera) on Monday, September 24, 2001 - 01:32 pm: Edit

That is good news, been able to fit 235/85 without spending any more money but on the tires.
Hopefully, within the next three month, my Disco will be promoted to recreational vehicle only so, I won't be driving it every day. Since I won't drive it everyday, do I really need to change my gears. I was planning on new gear with the lockers (6-8 month from today).

By Danno on Monday, September 24, 2001 - 01:40 pm: Edit

don't need to, but the new gears are nice for both up and down hills. i was following Kyle down some hills and he didn't need to touch his brakes once, but i had to keep applying (even in 1 Low) them so i wouldn't run into him. plus if you have the $$$ and are getting lockers, it seems to be best to get them at the sametime so you don't have to mess with the 3rd members twice.

think the wife is getting me a lockers for my 30th B-day and X-mas.

By Steve (Steve2) on Monday, September 24, 2001 - 06:28 pm: Edit

jose-

man you're fast - 235/85 already?!? how is it riding/ driving? email me some pics if you get the chance please.

to all others running 235/85's
is this a tire size one can live with on a daily driver? or is it just too much for the car?

thanks

steve

By Danno on Monday, September 24, 2001 - 06:48 pm: Edit

not bad at all...i've put about 35K miles on my 235/85 MT's in a little over a year. just make sure that you have enough air in the tires to prevent odd tire wear on MT's in this size.

By Steve (Steve2) on Monday, September 24, 2001 - 08:00 pm: Edit

danno

got and pics of your rig? also what kind of tire pressure do you run? how is your mpg or is that a silly question....

thanks
steve

By Ho Chung (Ho) on Monday, September 24, 2001 - 08:09 pm: Edit

steve, let's just say that 235/85-16 should have been stock tire size.

By MTB on Monday, September 24, 2001 - 08:41 pm: Edit

Steve
Slap the bad boys on and forget about it.
MPG hehehe We drive Rovers.
Or run two sets of tires one onroad(stock) & one offroad(235/85).Air pressure you have to play around some see what works best for you.
I think Mike B's web page www.discocrazy.org has about trimming the rear fender and look in the photogallery alot of sweet rigs running 235/85's.
Damn I need my RT springs this boy wants off the fence.
Come to the light Steve come to the light.

Michael B

By han chung on Monday, September 24, 2001 - 09:29 pm: Edit

yeah, steve...
do it like jose... couple posts and couple questions and bam!!! no turning back. you know you want it. get it and be happy. it never fails.

i think you are at risk of breaking/snapping drivetrain components w/ any tire... it just takes time and abuse. so just be gentle and you'll enjoy it.

have fun.

By Danno on Tuesday, September 25, 2001 - 05:00 am: Edit

steve,
http://www.discoweb.org/danno
the pic's in my office parking lot are when i had the OME springs (1"-1.5" lift)i now have RTE 3" springs. got pic's with the RTE on my computer at home (Cleveland) i'm in Dallas until sunday.
52psi front / 58psi rear on General Grabber MT's
reason that i went with the Grabbers is in a LROI tire test a few years back, they were rated up there with the BFG's, but were a lot less $$$
i get great milage on the hwy 17 or so.
on a road trip following Rob Davison and some wheeling after the trip i had a hair under 1/2 tank when Rob's fuel light came on. he also has rack and i don't, so that would have a lot to do with it.
also i'm running a K&N, Bosch +4's, Magnecorwires, and Mobil 1 fluids all on 87 octane

By Jeff Bieler (Mrbieler) on Tuesday, September 25, 2001 - 05:08 am: Edit

I "wussed out" when I went with the 215/85's. I don't regret the decision as it's primarily Lisa's truck, but I think the 235's are the way to go long term if you want to play regularly. Performance is relative. I drive like an old lady. If I wanted performance, we wouldn't have traded the Z3 in for the Disco.

The 215's on the Series truck, on the other hand, is due to the little lump up front called an engine. The 4:7 gears are fine, but if I've got 60HP spinning them, I'd be thrilled....

By Jose A Cabrera (Jcabrera) on Tuesday, September 25, 2001 - 05:17 am: Edit

WAIT A SECOND GUYS (I wish I had them now) .....where you guys get the idea I purchased 235/85? I am CONVINCED the next shoes are 235/85 but, I need to wear out (approximately another 5K miles) my 235/70 Scorpion A/T. Steve, let me know when ready, we might be able to get a package deal from someone (for 10 tires, 5 for me and 5 for you).

By Ho Chung (Ho) on Tuesday, September 25, 2001 - 05:22 am: Edit

you see how rumors go?

By Rumor Mill on Tuesday, September 25, 2001 - 05:29 am: Edit

Jose, how is that supercharger working for you? I heard you have like 450bhp and you like to light up all four 235/85s at the stoplights...

By Horness Spencer (Horness) on Tuesday, September 25, 2001 - 05:42 am: Edit

okay, can someone give me a quick "yes" or "no" on this?

My disco needs 4 new (yes, I said 4) tyres. I've ordered replacement 235/70/16's from my local garage.

With stock springs/suspension, can I get 235/85's in there without rubbing etc.?

If so, what are the implications (MPG/performance etc.)?

If I can, I'll call them and order me some 85's

Thanks in advance.
Horness

By Danno on Tuesday, September 25, 2001 - 05:54 am: Edit

have you thought about 245/75's? do you plan on getting taller springs?

By Andrew Vick (Afv) on Tuesday, September 25, 2001 - 05:58 am: Edit

Danno:

What did you do with your OME springs?

AV

By danno on Tuesday, September 25, 2001 - 06:01 am: Edit

sold them....

By Horness Spencer (Horness) on Tuesday, September 25, 2001 - 06:01 am: Edit

Eventually (hopefully before Christmas) I plan to put OME 762's in the rear, and put the stock rears in the front.

Tyres are being fitted Saturday though.

Horness

By Steve (Steve2) on Tuesday, September 25, 2001 - 06:22 am: Edit

jose-

when you wrote that you just came back from pep boys - i thought you got them! oops, my bad.

thanks guys- going to go 235-85 hunting - see what i turn up....i just hope the car will fit in the garage again! (thanks again jeff)

steve
ps horness check you mail!

By Jose A Cabrera (Jcabrera) on Tuesday, September 25, 2001 - 07:20 am: Edit

Steve,
I went to Pep Boys to buy some electrical stuff to wire lights to my roof rack and I saw the tires. Let me know if interested in shopping for two sets of tires..... like I said we might get a good deal. Are you shopping to buy right now?

Rumor Mill
" Jose, how is that supercharger working for you? I heard you have like 450bhp and you like to light up all four 235/85s at the stoplights... "

To be honest, I like it. It has become a challenge getting use to no pumping gas as often as I did before. See, with the 450bhp I am getting 23.5 miles per gallon (with A/C on)

Jose

By Jose A Cabrera (Jcabrera) on Tuesday, September 25, 2001 - 12:11 pm: Edit

Hey what's going on.
Someone e-mailed me to tell me there was a "JOSE" topic on the DiscoWeb where is it??? I want to see it!!!

By Jose A Cabrera (Jcabrera) on Tuesday, September 25, 2001 - 12:22 pm: Edit

Hey what's going on.
Someone e-mailed me to tell me there was a "JOSE" topic on the DiscoWeb where is it??? I want to see it!!!

By Danno on Tuesday, September 25, 2001 - 12:23 pm: Edit

Jose,
it may have been removed because someone had thought that you had 450bhp from this remark
"See, with the 450bhp I am getting 23.5 miles per gallon (with A/C on) "

By Bluegill (Bluegill) on Tuesday, September 25, 2001 - 12:37 pm: Edit

What did Ho say about rumors........? That's pretty funny.

By Jose A Cabrera (Jcabrera) on Tuesday, September 25, 2001 - 12:39 pm: Edit

You are kidding me? I thought we were all participating in the rumor started by "RUMORMILL"; such as the one about me buying 235/85.... this is too funny!
LOL
LOL
LOL
LOL

By Redsrover (Redsrover) on Tuesday, September 25, 2001 - 01:41 pm: Edit

Horness,

Don't try the 235 85s with stock anything. You'll end up cutting more than you need and they will still rub. Get a set of RTE 2" or OME HD springs and in the mean time wear out the tires you have.

Red

By Axel Haakonsen (Axel) on Tuesday, September 25, 2001 - 03:29 pm: Edit

The Jose thread is not removed, it's down in the General section.

By Jose A Cabrera (Jcabrera) on Tuesday, September 25, 2001 - 05:46 pm: Edit

Thanks Axel that was great. I'd love to keep it going for a while to see what we have gotten out of it.

By Jose A Cabrera (Jcabrera) on Wednesday, September 26, 2001 - 04:09 am: Edit

When I purchase (in the future) the 235/85, and I drive a real mile, what is my odometer going to read? Less than a mile or more that a mile? If I am not mistaken, it should read less than a mile�. Please correct me if I am wrong. Is the discrepancy significant?

By Danno on Wednesday, September 26, 2001 - 04:43 am: Edit

for an actual 10 miles travelled, my odometer reads 8.5

By Horness Spencer (Horness) on Wednesday, September 26, 2001 - 05:43 am: Edit

okay. varying reports here.

Some people say "yes" 235/85/16's (instead of 237/70/16's at present) will fit into the stock arches (just stock springs and shocks remember), and some say they will rub, and therefore, will not fit.

WILL SOMEBODY PLEEEEEEEEASE HELP ME OUT.

Anyone out there got these tyres on a stock Disco, can you email me a piccy?

Any help is appreciated. I'm payin' £350 for 4 new tyres on Saturday, and I don't want to get 70's if I could have fitted nice 85's...

Horness

By Danno on Wednesday, September 26, 2001 - 05:56 am: Edit

even with RTE 3" springs my 235/85's there is slight rubbing in the area directly above where the rear mudflaps would be (inside the wheel well). this is at full stuff. they used to rub more when i had the OME springs.

i would suggest getting 245/75's with stock springs. i had them w/o any problems. just had to adjust one of the steering stops. the disco would look fine when you get springs, and then when the 245's were out, get the 235/85's. don't the slight upgrade, you won't notice the drastic change in gearing as you would going from 235/70 to 235/85.

Also see http://www.discoweb.org/tire.htm

By Jose A Cabrera (Jcabrera) on Wednesday, September 26, 2001 - 08:20 am: Edit

So,
for every 100 miles it would read 85?
for every 1000 miles it would read 850?
for every 10000 miles it would read 8500?

is this how it works?

By peter matusov on Wednesday, September 26, 2001 - 08:24 am: Edit

naw, it would read
85 for every 100 miles
895 for every 1000 miles
8253 for every 10000 miles

and so on in a random manner

oh yeah, times 1.22/3.27 for the low range mileage

peter

By Leslie N. Bright (Leslie) on Wednesday, September 26, 2001 - 10:00 am: Edit

I've just put 245/75s on my stock Disco. I've had no rubbing with daily driving. I've not stuffed-n-trimmed yet; under compression there would be rubbing, but under commuting to-n-from work, they're fine w/o trimming. And they look good, they fill in the wheelwell well. (LOL at the tongue-twister!)

My intent is to run like this for awhile, and then later switch springs to get a bit of lift. Once these 245/75s wear out, then I'll go 235/85. That way, it's bit-by-bit, so the wife doesn't notice it all at once!


-L

By peter matusov on Wednesday, September 26, 2001 - 10:09 am: Edit

Leslie, watch out.

when i put 245/75s on mine, they didn't rub, either. the first hit of a speed bump with a fully loaded disco let me know ... yeah... and that was on the way to an offroading trip. so, once we met the group, i bummed a hacksaw and chopped these rear corners of wheelwells. still, lots of rubbing off road. Another rubbing point was the seam at the top of the wheel well.
OME HD springs all around practically eliminated rubbing, but not completely.
I wish I went with 235/85R16s.

OTOH, I put the mudders on the steel wheels, which seem to have slightly different offset than the stock alloys.

peter

By Bluegill (Bluegill) on Wednesday, September 26, 2001 - 10:17 am: Edit

I found that 245/70 were fine on-road with stock suspension. Off-road, the rear passenger tire rubbed very slightly when fully stuffed. Even with OME MD (764) springs in back, my 245/75s rubbed like hell (both passenger and drivers side). I haven't yet stuffed my 245/75s with the OMD HD (762) springs I just installed...

By Leslie N. Bright (Leslie) on Wednesday, September 26, 2001 - 10:27 am: Edit

Peter,

Mine are on stock alloys (the Tornado-type, not the castors). We flexed it a bit, and couldn't get it to hit, so left it for the time being, until I can get to the shop and get the fork-lift out to check it REAL good. I've been careful when turning, but have now gotten into some pretty tight turns and still not rubbed yet (haven't adjusted the steering stops yet... haven't turned it all the way to lock, either, though). I've bounced over lots of speed-bumps, taken some interesting climbs up a buddy's driveway, bounced around the back hay-field... no scuffs on the body or on the tires (Note: not loaded, excpet w/ 2 kids in the back seat). But I've had a big pucker-factor, expecting it to have rubbed....

Another factor beside the alloy/steel issue could be the brand, too... I'm running Dunlops, whereas you had...????

Yeah, I wanted to go w/ the 235/85s, too, and the tires themselves would have been a bit cheaper too, but then the extra for having to buy springs first was gonna hurt a bit more than I could do at the same time... Yeah, if I had gotten the springs earlier, then it wouldn't have been an issue, but I had goofed around and gotten to the point where I HAD to get new tires NOW.... and I didn't want to go w/ cheap tires.

I'm still keeping my eyes open, and treading gingerly, til I do get 'em checked out thoroughly w/ the fork-lift to make sure that I won't bust anything.

I'd been planning on going w/ 4 RT springs, but w/ recent discussions, I'm considering the stock-rears in the front, then just get 2 of RT's 2" HD springs in the back....

Hmmmm........ decisions decisions.......

-L

By Discosaurus (Discosaurus) on Wednesday, September 26, 2001 - 10:45 am: Edit

When I had 245/75's, I thought I had trimmed enough (with a 2" lift).

A very tough twisting uphill in a rutted sand wash (where power was the order of the day) proved me wrong with a big CRUNCH. I severely bent up BOTH rear quarter panels at the fender lip when the big MT lugs grabbed the sheet metal when I banged bumpstops that had never been touched before. This was after running those tires off road for over a year without a touch.

Trim or lift properly or, one day, your sheet metal will pay a price.

Now, with 235/85's and properly trimmed & lifted, the only place I touch is inside the fender well, only on one side. With steel wheels and 1" less backspacing, that'll go away, too.

keith
discosaurus

By peter matusov on Wednesday, September 26, 2001 - 11:29 am: Edit

second that. Though, I must not be wheelin' hard enough to see it happen (yet).

I have 245/75 Futura Enforcers, now on my rangie,
with OME HD springs all around.

peter

By Leslie N. Bright (Leslie) on Thursday, September 27, 2001 - 05:57 pm: Edit

Noted!