Originally Posted by NHBubba

The stock 2.48:1 reduction is pretty handy as it is.

Originally Posted by n3elz

Longer driveshaft in the front, shorter in the rear. You will also need work on the crossmember, and the gas tank may need to be relocated, depending on how big the doubler is.

Ben, to even NEED that sort of thing, you really would have to be doing serious rock crawling type of offroading. And if you're doing that, you'd probably want to figure out better underbody protection as well.

What have you done or regularly do where the time and expense of a doubler would help you?

Originally Posted by n3elz

I see the benefit of lower gearing for sure -- I just think it would be easier and cheaper for him to put the proper differential gears in for the tire size he's gone to. That in and of itself would probably solve most of his problems, real or perceived. Although not a trivial expense to regear, it's a lot cheaper than what he's thinking of and it will save a lot of stress on his u-joints, driveshafts, and transfer case.

Lower gearing before the transfer case is all well and good -- but putting something lower in the diff has benefits all the way down the line.

I wonder does anyone make lower low range sets for the Borg-Warner t-cases most of us have?

Originally Posted by n3elz

I can only envy you your transfer case!!!

(...and front driveshaft, and front differential, axle shafts...the list goes on...)

Originally Posted by Rand

New tire size/old tire size = new gearing/old gearing

35"/30" = x/4.11 ?

x=4.79

So I'd go with 4.88's

Hell maybe even 5.13?'s not like this is your primary vehicle.


Rand

Originally Posted by n3elz

lol! I need your transmission too, lol. You can keep the front end stuff.

Are you putting in a different transfer case??? What do you plan to use? Sorry if you talked about this already somewhere but I didn't see it if so.