Calling all 4.10 Users

[DiscoDino]

4.88 and above? Gosh, that's so Xtreem.

John...its not "Xtreem" as such (branding/sarcastic I mean), its just that I need 4.88s to turn the tires at the desired RPM, its "form follows function" combined with "to each his own" to create "one's preferences"

 

[Bruno]

I need 4.88s to turn the tires at the desired RPM

How'bout a 1.4 or 1.6 T-case with a GBR underdrive low range gearset? now that would be trick eh? and it would eliminate the weakness in the 4.11 + R&P's!

Bruno.

 

[DiscoDino]

How'bout a 1.4 or 1.6 T-case with a GBR underdrive low range gearset? now that would be trick eh? and it would eliminate the weakness in the 4.11 + R&P's!

Bruno.

I have converted to Toyota 3rds and axles, so I have little to worry about R&P failure until I start getting into the 5.29 an lower ratios.

The I am currently at 1.2 for H and 3.32 for L and will remain this way - putting a 1.6 for H and 4.3 for L is a thing of around 2.5K USD that will still provide you with the same number of gears...I'm hoping that some of the folks at P4x4.com and OL4x4.com come up with the transfer case doubler so that I can have 3 transfer case ratios instead of 2 and ultimately lead to a better crawl ratio when needed

 

[Bruno]

I'm hoping that some of the folks at P4x4.com and OL4x4.com come up with the transfer case doubler so that I can have 3 transfer case ratios instead of 2

Is there enough room on a Discovery for it ?

Bruno.

 

[koby]

John...its not "Xtreem" as such (branding/sarcastic I mean), its just that I need 4.88s to turn the tires at the desired RPM, its "form follows function" combined with "to each his own" to create "one's preferences"

Why didn't you just buy a Jeep?

 

[Shawn M]

Craig, you twit.

Why are you reading a thread about 4.10 (and lower) gears? Talk of that kind of 'heavy modification' makes you uncomfortable. And John doesn't need a cheerleader for his posts.

Go here for some pics and information about rigs set up in a manner that you can stomach.

If someone wants to go to bigger than 35", they should do it and many members here have some advice to offer.

As it's lame to mock newbies, it's worse to mock someone experienced who has a different idea of a 'better' Disco so STFU.




!

 

[koby]

Why am I reading this thread?

I'm reading this thread because I'm interested the 3.88 gears mentioned above.

Heavy modification makes me uncomfortable?

Hardly.

It makes me sad actually. I hate to see butchered Discos. If you want 37s on your Disco, I think you should sell the Disco and get a Jeep. They all basically look the same in the end anyway. If that weren't enough, Jeep parts are cheaper too.

Lastly, if you think that more modification equals more experience then you have no argument. If your signature is your list of mods, then I think my Disco is more "heavily modified" than yours. By your rationale, my opinion should weigh more than yours, right?

 

[GregH]

Is there enough room on a Discovery for it ?

Bruno.

I have trouble imagining that there would be without cutting into the footwell or ? Even that little Rocky Mountain overdrive won't fit in the discovery without cutting (although not into the passenger area).

 

[Rich Lee]

4.11's experience in D1's and D2's

I started out with 4.11s in my 95 disco with 32" Pro Comp Mud Terrain tires and TrueTrac diffs front & rear. I did not find it too wound up at highway speeds, even with a louder than stock 3" exhaust. The milage suffered about 1-2 mpg compaired to 3.54's open diffs and 31" Dunlop RTs. The acceleration was slightly better with the new setup. I drove it several times over 260 miles in a day, usually in mountains, where any monotonous droning of the engine was unlikely to occur for any length of time. Hence, neither I nor my passengers were bothered by the minor "undergearing".

I then Swapped the 4.11's & TrueTracs into our 2000 D2 with 31" Yokohama AT's. Wow, what a difference! The HP and Torque bands of the newer "Bosch" engine really respond to the newer gearing. The 0-60 acceleration definately felt quicker than a stock 2003 4.6 that I recently drove. I have been commuting with the truck daily up and down steep mountain roads and the gearing is much better suited to this terrain. I recently drove the truck to Kirkwood in the Sierras (250 mi each way) with 7 passengers and at least 500 lbs of gear, most of it on the roof. The powerband was amazingly more useful and I could pull any hill at any speed I wanted (up to 85 mph). The D2 is so much smoother and quieter than the D1 that engine revs are of little issue. I will soon be mounting the 32" tires for the D2 and anticipate things (except milage) will be even better. The original D2 engine has had an increasing "piston slap" at cold idle that is getting worse and the head gaskets have begun to "ooze" coolant at their outermost edges. I will soon be replacing it with a nearly new 4.6 long block and it will be interesting to see how well it does with yet another 30 hp and 50 ft/lbs of torque.

I spoke at length with Bill at GBR about upgrading axles and he said it would not be immediately necessary with the TrueTracs and tires under 34" since it would be very rare that tons of torque would be sent to just 1 wheel in a "shock-load" situation. I will keep a light foot and an open mind for now. I can't say for sure, but the D2 axles look significantly beefier than the stock D1 axles and should provide further forgiveness.

While on steep off-road descents in low range , the difference between 4.11's and 3.54's is much geater and much appreciated.

Bottom Line, 4.11s rock!

 

[Kyle]

Rich , I dont dispute that the 4.1 is a good gear set. I have owned many sets of gears for different purposes over the years including some 4.8 and 5.1 . I remember convincing Ho some years back that it was the most bang for the buck and that he should switch.

However , what I am saying in this thread is that the 4.1 is a bit steep for long haul. I dont mean 2 hours on the highway. I mean a week of 14 hour clips or so. Every little thing is amplified and it is just one more thing that contributes to fatigue over long periods of driving.

Since the 3.8 and the 4.1 are not so far apart in ratio the difference in power gain will not be that different. However I think it will drop the Rs just a touch. And a touch is nice.....

 

[Kavic]

I'm glad you finally cleared that up Kyle, I was beginning to question my plan to go to 4.10 gears. Not sure about most of you guys but driving 14 hours a day for a week is going to fatigue me in any kind of vehicle. So those occasional 8 hour day trips shouldn't be a problem then?

 

[Kyle]

For just short hauls up and down the coast or around town they are freaking great !!! You absolutely cant get as much power for the money with any other mod . Just keep in mind what I am saying though. You got little vibes now ? They will soon be big vibes as the shaft speeds increase...

 

[Kavic]

Fortunately no vibes. When I changed shafts I got rid of those. Thanks I'll stick to my plan!

 

[Bruno]

I was beginning to question my plan to go to 4.10 gears. Not sure about most of you guys but driving 14 hours a day for a week is going to fatigue me in any kind of vehicle. So those occasional 8 hour day trips shouldn't be a problem then?

With 33's on a 95 D1, you need all the help you can get!

LOL,
Bruno.

 

[DiscoDino]

Kyle - I agree with the versatility of the 4.11/4.1, i've witnessed and driven sopme truck in Lebanon on this and I would do this for 33s for my dual purpose truck...My D90 is on 33s now but I have remained with the 3.54s for now before getting the ARBs, but will definitely run 4.1s there.

Bruno - there is room in the Disco, expecially with one that is body lifted and who's owner is willing to get the job done correctly.

Koby - Jeeps are more expensive in Lebanon, and Land Rover parts are cheap and abundant, so are Toyota stuff...I like everything about the Disco, except that it is under-tyred, and if I can succesfully slap in 37s, then what do you care? and butchering? listen, no one loves his/her truck like he/she does, so I'm sure "Dino" is happier on 37s than on anything else

 

[Kyle]

Well the big tire thing is the big tire thing. Certain people dont really need to travel on them so it works for what they do. I still dont see the issue with fitting them however and if you want em why not just skip on up to 40s , 42s whatever and be done with it.. If you are willing to chop it and tires are your priority its really just a simple thing isnt it ? Something breaks afterwards just fix it..... Suspension doesnt work,,,,fix it.. The shit I see and simply cant stand is the people wanting the giant tires with as little work as possible. "What can I get by with ?" "What is the least I need to do?" .

This isnt innovation and its not some sacred ground no one has traveled already. Its putting something that you want in someplace that it doesnt belong. (Dont get excited Rob)
Gears are gears and almsot everything you do to the truck you wish you could take a mulligan on. Unfortunately for most , this is too expensive for the gears and the install and they have to convince themselves that they are in love with what they bought. All the while that poor bastard is singing along down the interstate and you are feeling the pain right along with it.... The real issue is with the power of the truck. If it had more power this gear thing wouldnt be such a needed item. When you put a big tire on this goes right in the toilet all together and you try to bandaid it with a gear set. Unfortunately the 4.10 over compensates at a 32" tire and you are left with an under geared truck. Increase tire to try and calm the gear set down and you are right back in the shitter as far as power is concerned. Your classic double edged sword.. I only mention the 3.8s because its the lesser of two evils...

 

[DiscoDino]

why not just skip on up to 40s , 42s whatever and be done with it..

Kyle, the reason I am willing and able to do what is necessary is by taking baby steps, so from 29s to 31s to 32s to 35s to 37s and now I'm going to 42s...all the way way realizing that the mods I am doing benefit my driving/terrain needs...I think that is a constant across any correct way of modifications...

Its insane how someone wants to slap 35s with stock axles...or anything else, but Internet is "sharing info" and the more info in the lesser experienced hands the worse the outcome.

 

[Rich Lee]

Kyle,

Point taken. I have not yet had the D2 with 4.11's out on a drive more than 5 hours, same for the D1 when it had them. I believe it would be a lot more unpleasant driving across the plains from VA to Moab. Where I live, the longest flat & straight stretch of road is no longer than 10 miles and at least 100 miles away. Although I'm thinking of driving down to Central America next year.

Having said that, what is your (or anyones) seat-of-the-pants impression of a 4.11 gearset and 32's on a D2 over long hauls? With a 4.0 motor and/ or 4.6 motor? I assume it is less fatigueing than in a D1 (it certainly is the case when comparing stock D1's & D2's). I supect you've wheeled with some similarly setup D2's on long trips. Do they need less burbon or Bextra at the end of the day? I hope to do some long range trips this summer and wonder how "tedious" they will be.

I had a long, pleasant talk with Ho last week while I was in LA picking up a used Volvo XC90 for my wife. From his comments (and now yours), I see a trend among many of the "First Ones" towards greater comfort and less "gonzo" . I suspect the reasons for this are 3 fold:
1. You guys have already "been there, done that" with respect to tough trucks on tough trails.
2. Experience enhances the ability to do more with less modification and come home in one piece.
3. Face it, we're all getting older. I turn 49 in 3 weeks and no longer drool at the thought of doing another double-black daimond run, "Death Ride" , 5.11 lead (traditional) or prolonged class-5 rapid.

Thanks for all the input (not that I agree with it all) and for keeping Disco Web alive.