Transfer cases

XR · **Posted:** Sun Jan 11, 2009 2:14 pm

I'm beginning to piece parts together for the swap.I've been trying to do this for 4 years now!Anyway what cases are you guys running other then stock?Anyone do a Dana 300 yet?How about an Atlas?Where do the sticks come through the floor?Thanks for helping me occupy my brain on a nasty Sunday afternoon.

tommudd · **Posted:** Sun Jan 11, 2009 2:18 pm

Have you read through tha post that Inc started on here, lots of discussion on transfer cases,

plus for where the stick come up just cut a hole, lots of fun

JJsTJ · **Posted:** Sun Jan 11, 2009 2:50 pm

afaik,

two have used Rubicon cases. (allyrand and me)
one used a Tera-low modified TJ case, iirc (Seth)

Not sure what Marlin from UT used but think it might have been a TJ case also.

Troy and Ted are using Atlas cases.

Inc · **Posted:** Sun Jan 11, 2009 3:13 pm

OHV KJ used his stock one and I will be too, unless I find a screaming deal on a nice used one. :roll:

InCommando · **Posted:** Sun Jan 11, 2009 4:03 pm

Dana 300 woud have to be flipped, IIRC, adding more cost.

Anyone thought of a Bronco D20? Small, cast-iron, no chain, and with some simple mods they are very strong.

Diggerfreek · **Posted:** Sun Jan 11, 2009 4:55 pm

IIRC, both TJKJ and USAFCOP are using atlas 2's

tjkj2002 · **Posted:** Sun Jan 11, 2009 8:59 pm

If your not retaining the 8.25 rear diff(or find one of those fancy KJ D44 rears,or modify a D44 rear) you will need to use a different t-case that has the speedo port in the t-case,which none of the KJ's OEM t-cases do.

Just to throw a wrench in your planes I see you have the 45RFE trans and you could have one of 3 different length output shafts and this is a major factor in t-case choices.Since I didn't want to rip my t-case off for the measurement I ordered my AtlasII t-case for the shortest shaft and if I have any of the longer ones I will have to get spacers from Advance Adapters to get the correct length of spline engagement.Oh and if you get the AtlasII you will need to order it with the universal cable shifters since they do not make any shifters for a KJ,I'll be posting pics of how I'll be mounting my twin stick shifters for my AtlasII.

But if your going to do a SFA why not install a beefier t-case anyways? You'll be much happier with 4:1+ low range anyways.If I had the extra money I really wanted the 4-speed Atlas but I settled for the 4.3:1 AtlasII.

ohv_kj · **Posted:** Sun Jan 11, 2009 9:10 pm

231 is a good case...and i do have 4:1 tera low in it...X-mas gift

who cares about your speedo...mine has been off for two years...i got a good feel on how fast i'm going...again, this is me doing the "BUDGET" thing again...lol

tjkj2002 · **Posted:** Sun Jan 11, 2009 9:18 pm

ohv_kj wrote:

231 is a good case...and i do have 4:1 tera low in it...X-mas gift

who cares about your speedo...mine has been off for two years...i got a good feel on how fast i'm going...again, this is me doing the "BUDGET" thing again...lol

Yeah and it's not real good for your trans or engine since that speedo controls more then just the gauge in front of you,plus it is illegal and your committing fruad if you ever sell your KJ since the speedo is not showing the correct mileage.

ohv_kj · **Posted:** Sun Jan 11, 2009 9:30 pm

umm...why would i sell my kj after doing all of this work??? i'm going to run it into the ground...who knows, in acouple of years i could have it exo'ed, soft top, d 60's 37, 38 inch tires and it could be my trial rig...i'm saying as long as you keep your kj and it you don't mind it...it could be done...

tjkj2002 · **Posted:** Sun Jan 11, 2009 9:36 pm

ohv_kj wrote:

umm...why would i sell my kj after doing all of this work??? i'm going to run it into the ground...who knows, in acouple of years i could have it exo'ed, soft top, d 60's 37, 38 inch tires and it could be my trial rig...i'm saying as long as you keep your kj and it you don't mind it...it could be done...

Yes but your trans and engine will still not like you very much without that speedo signal.You'd be able to pick up some HP and MPG's with a working speedo,not to mention keeping it from stalling on you in panic stops or extreme angles.

Inc · **Posted:** Sun Jan 11, 2009 11:08 pm

If I don't find a crazy deal on a t case then I'm going with the 4:1 Terra Low Kit as well, eventually anyway. Not right away.

tjkj2002 · **Posted:** Sun Jan 11, 2009 11:16 pm

Inc wrote:

If I don't find a crazy deal on a t case then I'm going with the 4:1 Terra Low Kit as well, eventually anyway. Not right away.

There not cheap and I believe to install one on a KJ's t-case is a little more involved,I believe the inside of the case needs to be ground down for clearance.ARBSeth would now what was involved and cost.

Inc · **Posted:** Sun Jan 11, 2009 11:19 pm

tjkj2002 wrote:

Inc wrote:

If I don't find a crazy deal on a t case then I'm going with the 4:1 Terra Low Kit as well, eventually anyway. Not right away.

There not cheap and I believe to install one on a KJ's t-case is a little more involved,I believe the inside of the case needs to be ground down for clearance.ARBSeth would now what was involved and cost.

I never said it was easy or cheap, but they work.

tjkj2002 · **Posted:** Sun Jan 11, 2009 11:23 pm

Inc wrote:

tjkj2002 wrote:

Inc wrote:

If I don't find a crazy deal on a t case then I'm going with the 4:1 Terra Low Kit as well, eventually anyway. Not right away.

There not cheap and I believe to install one on a KJ's t-case is a little more involved,I believe the inside of the case needs to be ground down for clearance.ARBSeth would now what was involved and cost.

I never said it was easy or cheap, but they work.

Yes they do work but are they really worth it?

Inc · **Posted:** Sun Jan 11, 2009 11:26 pm

Sure.

XR · **Posted:** Mon Jan 12, 2009 12:25 am

Personally I'd avoid super low gearing with a chain drive case.Just my 2 cents.

tjkj2002 · **Posted:** Mon Jan 12, 2009 1:06 am

XR wrote:

Personally I'd avoid super low gearing with a chain drive case.Just my 2 cents.

Agreed

ARBSeth · **Posted:** Mon Jan 12, 2009 7:29 pm

It worked fine and I beat the Shizzle out of it.
The only thing you need to do is put a TJ shift fork into it instead of the KJ one... some intereference issues there... but other than that, no worries.

And man, 4:1 with 4:56's and 35's was about perfect for crawling with that 3.7... and the 2 Low was a nice option, too. If you want low gears, it works just great for the cash and amount of work.

ohv_kj · **Posted:** Mon Jan 12, 2009 10:58 pm

ARBSeth wrote:

It worked fine and I beat the Shizzle out of it.
The only thing you need to do is put a TJ shift fork into it instead of the KJ one... some intereference issues there... but other than that, no worries.

And man, 4:1 with 4:56's and 35's was about perfect for crawling with that 3.7... and the 2 Low was a nice option, too. If you want low gears, it works just great for the cash and amount of work.

agreed

Transfer cases

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