Axles's 4.10 ratio or not?

[rayman]

I wonder if anyone can share info on diff kits (ring gear & pinion) for 4.10.
I'm running 32 inch wheels, and it seems that 4.10 would be a better option to have, currently on 3.73
I'm new to Jeep KJ, and struggling to understand what specs I should look for?

[cmohr]

Yes , 4.10's are the way to go, with any tyre increase. Also good to think about upraged diffs as well, Lockers are OK, but also don't discount something like a DTT, good self locking Limitted slip diff, great for tracks and excell on beaches.

32's are possibly a little big, lots of rubbing, for not much extra value. I run 31's. with no rubbing, but a lot of lift, and magic.

[rayman]

I found similar thread for re-gearing and what to look for.

[Methamon]

I have 4:10 gearing in the rear with larger tyres great for beach work and towing havnt beefed up the diff

[cmohr]

You can check with Wooders Garage here, to see if he has any.

Other than that, most diff places can get hold of the stuff. I have the Yukon gears in the front D30A 4.11"s and the 8.25 rears in 4.10's, I know it sounds odd the different ratios, but thats what is req.

When you get the gears, you also need a master install kit, all the seals and shimms, bearing ect ect, plus, you also need to get a new set of crown bolts, don't use the old ones again. That's also why I suggest getting new diff centres, after 10 years the older ones are probably on there way out, so cheaper in the long run to do everything whilst it's all apart.

[jaffazoom]

When I was looking at fitting a ford rear diff in my XJ I found It's not unusual to find a miss match of gear ratios even from the factory.
Usually the front will have a slightly higher ratio number than the rear and apparently the mud swamper guys do it so that the front is pulling the back for better steering?

[cmohr]

I have a spare front diff hanging around with 4.11's in it, came from my old 2.5lt CRD, I also have another with 4.11's and a DTT. And a complete rear axle with 4.10's and a DTT.
Hoping to put the the DTT's into my new KJ. but not sure about the ratios. 2006 CRD 6 speed Manual, apparently it has something like 3.55 ratios in there. and I really wouldn't want it any lower?