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Unread 10-22-2013, 08:32 AM   #1
qualls06
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1988 YJ Wrangler 
 
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Transfer case question

My transfer case is all jacked up it makes a popping sound like my chain is popped off. I'm looking at rebuilding that one but I need one this weekend and there are a lot in the local scrap yards but none are an 88. Could I take one from another year and would it bolt right in or what should I do

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Unread 10-22-2013, 09:01 AM   #2
jeepster93
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I suspect you could rebuild the one you have in less time than finding, removing the scrap one, and removing yours, and replacing same. That...is a fair amount of work.
Pulling yours(really doesn't NEED removing, can be worked on in place), replacing the chain, and re-assembling it is less work, a couple hours.
The new chain is $$ though. The bearings are also, as is the main shaft. (the roller bearings are like $55 at Jeep, chain is $75 as is the main shaft) plus the new fluid and sealant.
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Unread 10-22-2013, 09:03 AM   #3
Randonexplosion
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I believe in 94 the input shaft changed lengths, so if you get one 93-earlier you should be good there. You have a 21 spline input shaft so stick with a 4 cyl, or a 87-90 with a 4.2. 4.0s will have a 23 spline input shaft. Hopefully someone will correct me if any of my info is wrong.
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Unread 10-22-2013, 09:16 AM   #4
crackedcornish
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if you take a t/c out of an early 4.2 make sure the tag says it's a 231...they used 207's on the very early sixes (just '87's I think)
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Unread 10-22-2013, 09:24 AM   #5
Randonexplosion
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Quote:
Originally Posted by crackedcornish View Post
if you take a t/c out of an early 4.2 make sure the tag says it's a 231...they used 207's on the very early sixes (just '87's I think)
I should have mentioned that
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Unread 10-22-2013, 10:46 AM   #6
qualls06
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So try and find an 87 inline 6 and it should work I'm also not opposed to changing things out of the t-case
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Unread 10-22-2013, 10:50 AM   #7
Randonexplosion
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Most 87s are a 207, not a 231 that you want. 88-90 6 cylinder, or 88-93 4 cylinder would be a good start.
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Unread 10-22-2013, 11:16 AM   #8
SeanB95YJ
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or just get a TC from ANY 88+ YJ regardless of motor... then IF you get a different one, swap your input shaft into it.
saves a lot of time picking through, IMHO
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[FONT="Comic Sans MS"][COLOR="Blue"]Sean B. - Schenectady, NY - 95 YJ, 350/700r4/NP241, JB Shorty SYE, 8.8 rear, 2" BDS, 1" homebrew shackles, Daystar 1" BL, TJ flares, 35x12.50 General Grabber AT2 on 15x10 Bart D-Truckers, Polyshield polycarbonate windshield, HD over/under crossover steering
[/COLOR] [COLOR="Red"]swap/build thread: [url]http://www.jeepforum.com/forum/f22/after-almost-4-years-finally-my-own-build-swap-thread-1542284/[/url][/COLOR][/FONT]
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Unread 10-22-2013, 11:38 AM   #9
roadyrob
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I run a case out of a 95 4 cyl. in my 87, the change in the later cases was internal (different cut gears). any standard shift 21 spline case will work. with the newer case you will have to switch your speedo drive but thats simple.
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Unread 10-25-2013, 08:38 AM   #10
qualls06
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Thanks guys I got it figured out. I took the gears that the chain run on out of an np231 c hd and put them in my original case and put the thicker chain on and it solved the problem.
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