Transfer Case ID help needed

[Jeeper Al]

I was out Junk-yarding today and found a Dana 20 in a 72 Wagoneer. I also ran across a J4000 pickup in the same yard. I think maybe a 74-76(????)
The transfer case in the pickup was selectable 2H, 4H, N, and 4L. The pattern on the selector knob was a U shape. The output on the t-case was on the far right-hand side (the drive shaft was only a couple inches away from the frame). Can anybody tell me what that t-case is? Is it a Dana 18?

Should I grab that one or the Dana 20 for my 79 Wagoneer? I believe both of the junkyard jeeps have TH400 trannys in from of them (as mine does).

Also, If I go with a part time t-case, Can I leave the front hubs alone or do I need to go to Lockable hubs? They are currently engaged full time with my stock Quadra-Trac.

Thanks in advance.

[joe]

They're both D20's. FSJ's never ran D18's from the factory. If The Wag and truck's are both behind AT's they're identical.
If you do go with the part-time D20 "I" would add unlocking hubs so the front diff isn't turned by the wheels and turning is a bit easier when in 2WD but you don't have to add unlocking hubs.
If hubs are added...lock them once a month or so for a few miles(in 2WD is fine) so they stay lubed.

[Jeeper Al]

Cool. I didn't know the D20 came offset like that. How hard are the hubs to install? Will I need to change the "entire" hub (meaning rotor and all)? Sorry, I've never had the dust caps off of mine yet, I don't know what the set up looks like....

I will need to grab the trans to transfer case adapter too, correct?

[Jeeper Al]

OK, disregard my last reply. I starting searching the forum and found all the info I need on the swap.

I knew I loved coming here for a good reason.. :D

[porkchop]

<blockquote>quote:</font><hr>Originally posted by Jeeper Al:
Cool. I didn't know the D20 came offset like that........ <hr></blockquote>

The D20 was never an offset. The rear axle had a slight off set but the D20 itself had a rear center output :confused: . Can you describe the t-case that you saw more? Thanks.

[64Trvlr]

<blockquote>quote:</font><hr>Originally posted by Jeeper Al:
The output on the t-case was on the far right-hand side (the drive shaft was only a couple inches away from the frame). Can anybody tell me what that t-case is? Is it a Dana 18? <hr></blockquote>

I think he's talking about the front shaft, though it's hard to know for sure.
:cool:

[porkchop]

I thought of that too, but he said they look different from each other.

[Jeeper Al]

No, it was definately the rear shaft too. It was hard to get a good look at it. It was definately offset right/right AMC 360 engine, TH400 trans, and part time selectable TCase. Could the guy have put a Chevy case on the TH400?

[porkchop]

The only t-case that I can think of that is right/right drop, gear driven, part time is the D18. Someone must have swapped it in.

[Jeeper Al]

I think I'll just buy a CJ and give the Waggy to the wife to drive tongue.gif