DII with 255/85/16

J

Jamooche

Well-known member
Apr 20, 2004
528
0
Boston
www.jamilabbasy.com
I have a 2" lift with 1" spring spacers so you will be able to fit them. The only other adjustment I had to make was to adjust the steering stops in the front so the tires do not hit the front radius arms. This requires taking a bolt off, putting on a washer and putting the bolt back on...takes 5 min.

As for consequences, there are none. Loss of power, yes, increased braking distance, yes, but not really a big deal. The only real problem is you have to get used to how the truck sways a bit more.

Jamil
 
Randy

Randy

Well-known member
Apr 20, 2004
613
0
Easton, Pa.
Panama Disco said:
Jamil,

How is the ride with does tires (255/85/16), if i have OME 751 front srings and OME781 rear with 1.0" expedition exchange spacers and OME shocks i would be able to run this size of tires?

I?m know some of the consequences like, lost of power, etc what mods do I have to do to run this tires safely from suffering consequences.

Thanks,
Peter
Click to expand...

You will want at least 4:11s in the diffs.....even with those it's a bit more of a pig than usual.
 
P

Panama Disco

Guest
Thanks for the info guys, I will go with the 255/85/16 and planning on purchasing a superchip from the UK, anybody knows where can I purchase one in the USA for TD5 engines?? The gears will come around December when I purchase the lockers if I get the money :D .

Thanks,
Peter
 
I

Iron Boots

Guest
Jamooche said:
So do 4.11 gears just slow the truck down? What exactly changes when you switch gearing? How is the highway driving? I have the stock gearing right now.

Jamil
Click to expand...

Jamil,

4.11?s, compared to the stock 3.54?s, will make the engine rev higher on the highway (which is a good thing as the larger tires will cause an overdrive effect, effectively dropping RPMs?) Basically going to 4.11?s will restore the performance you?ve lost and really make the truck crawl better as well?.

One thing to think about, is putting lockers in now as it won?t cost any more in labor?


RJ
 
P

PHARAOHDISCO

Guest
You should change to 4.1 gears. It will bring back the trucks original power. When increasing the wheel diameter you loose torque. After changing to 4.1 gears your Discovery will achieve the desired speed at a higher rpm, than your current rpm, thus making it more responsive and acceleration will improve dramatically. This is important if you are frequently using your Discovery on the highway.
 
mikeyb

mikeyb

Well-known member
Jun 18, 2004
370
0
59
Dallas
got a day and a half on my 4.11's and i am pretty happy so far. that said, i have been gentle on them so far to run 'em in easily. the big test will be in 2 weeks when i head to new mexico and get into the mtns...

it is not night and day, but you can tell the truck's rpms and the powerband are in better alignment again.

m
 
P

Panama Disco

Guest
three%20quarters%20shot.jpg
This is not my Disco, the owners name is Nadim. I just want to see people?s reaction to these Tires. Is that BIG for you? :eek:
 
mikeyb

mikeyb

Well-known member
Jun 18, 2004
370
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59
Dallas
looks like some of the stuff i saw running glaciers and snow fields in iceland...

hope there are good axels in there!
 
P

Panama Disco

Guest
Randy Maynard said:
Underneath GBR driveshafts front and rear, GBR HD rear axles, Detroit locker with GBR 4:10s in rear; TruTrac with GBR 4:10 in front. Noee has the same setup in his D2.
Click to expand...

Randy,

I?m thinking on purchasing the same setup (driveshafts. Axel, etc) that you have on your Disco. I still have the stock tires, I feel like putting the 255/85/16 tires right away or shut I wait until November when I purchase the driveshafts, axels, lockers and gear??

Any thoughts on this,
Peter
 
mikeyb

mikeyb

Well-known member
Jun 18, 2004
370
0
59
Dallas
i am running 265's with a great basins rear drive shaft, great basins u-joints in the stock front drive shaft, 4.11's in arb's front and rear. heavy duty axels rear and will change to heavy duty fronts when great basins gets their hd cv joints worked out.

my first changes were to go to 265's with the lift. so for a short while, i ran with a rotoflex rear and stock u-joints in the front. just did the 4.11's, arb's and axels. while i will not say that you will have ~no~ problems running 255/85's without upgrading drive shafts/axels, i think for the short time you seem to be talking about and if you show some driving smarts on the trail there should be little problem doing your rubber now.

just remember the weak points in the system and drive within their limits...
 
P

Panama Disco

Guest
Michael

Thanks for the info. I use my Disco for daily driving so I think ill wait until November when I get the $$ to buy the drive shafts/axels, etc to be on the safe side besides the tires that I have right know are in good shape. :D

Thanks,
Peter
 
J

Jamooche

Well-known member
Apr 20, 2004
528
0
Boston
www.jamilabbasy.com
I obviously have the 255/85s. The only drivetrain upgrade I did was a rear GBR driveshaft. I have stock gearing and axles. I know other people may say that this is bad and that I should upgrade, but I have had no problems with this setup at all. I was driving really hard a few weeks ago, making it over obstacles D90s with 35s had to winch over. Don't get me wrong though, I want to upgrade sometime later, but I just wanted you to know that the setup with stock drivetrain parts works well.

This is also my only vehicle and drives great on the highway at 80mph. With this setup, low range, gear 1, with HDC turned on is still much faster than a stock D90 low range gear 1. So the 4.11 gearing may be a good idea soon.

Jamil
 
P

Panama Disco

Guest
Jamil,
Do you have any pics from your disco with the 255/85s that i can see, from the font and side, please.

Thanks,
Peter
 
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