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Old 03-18-2012, 02:12 PM   #1
Join Date: Jan 2012
Location: Bossier City, La.
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How does the transfer case work?

This may be a simple question to most of you, but I want to make sure I don't tear it up!! I bought an '87 YJ 6 cyl., manual trans (not running when I bought it). I've got it running good, everything works, started driving it around town a little to shake out the bugs. It hasn't been drivable for about a year, so I want to make sure everything is ok before I venture too far. My question is, how do I shift the transfer case? Should I be stopped, rolling, transmission in gear or out? I briefly tried it on loose ground and got rear wheel spin on both sides, but no spin from the front. I'm not sure if I engaged it right. No lights on the dash came on, but this Jeep had wiring issues, so I don't think they work anyways. Any advice would be helpful.
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Old 03-18-2012, 02:20 PM   #2
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First off you need to make sure your front axle disconnect is functioning. In it's 'open' position the front wheel drive won't work properly. The factory vacuum system of activation is pretty failure prone on these old Jeeps. Couple of easy fixes, tho. A quick forum search will turn up plenty of discussions.

You shift the Tcase when stopped, in nuetral. And never use either 4wheel setting on pavement. The tcases (either a 207 or 231 on your 87) are direct-driven & will blow in short order if used on dry pavement.

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Old 03-18-2012, 02:31 PM   #3
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Thanks for the advise. I tried it in a gravel parking lot, so I wouldn't tear anything up. I'll have to get under it and check the vacume lines. I know I have some bad ones under the hood to replace. This thing had nothing done to it for years, and I'm taking my time replacing things. I only paid $1000 for it, spent $40 to get it running, so I've got a little room to invest in it!!
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