TH400 no reverse -
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post #1 of 9 Old 09-24-2004, 11:08 PM Thread Starter
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TH400 no reverse

i have a 1977 jeep cherokee 2-door with a 360 cid v-8 th400 tranny with the all wheel drive. i am planning on making it in to a trail truck because the body is rotted. the problem is that it doesnt have reverse or neutral ? its always in drive even in park it will try to move. is there away to fix it with out having it rebuit ? any info will help.

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post #2 of 9 Old 09-25-2004, 06:53 PM
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I just rebuilt a 700r4 for my wrangler and when I had that apart, there was nothing that I could see, for your problem. I think you will have to get it rebuilt. Call a couple of your local tranny shops and ask them what they think. I prefer the smaller mom and pop joints because they wil lhelp you out more than the bigger places. Good Luck
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post #3 of 9 Old 09-26-2004, 08:33 PM
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Might check to see if the shift linkage is out of adjustment.
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post #4 of 9 Old 09-27-2004, 11:16 PM Thread Starter
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nope there is no linkage left i thought that might be the problem so i cut the floor and removed the linkage a shifted at the tranny but it wasnt that
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post #5 of 9 Old 10-06-2004, 07:10 AM
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i might have a body for you if you are interested. i dont know what it looks like but it is a 73 and i am getting it for the axles and springs and possibly the motor. but it does not have a tranny and i dont think it has the t-case but not sure.

Joe Clark 210-639-0276
/l ,[____], 82 CJ 8 Scrambler Currently all stock but that will change.
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post #6 of 9 Old 08-08-2007, 06:32 PM
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I have this exact same problem !!! Help anyone? Modulator maybe?
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post #7 of 9 Old 08-09-2007, 02:08 PM
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Go over to

2006 Unlimited Rubicon
1990 Wrangler YJ
1987 Wagoneer FSJ
1975 J20 Jeep Truck
1967 J3000 Jeep Truck
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post #8 of 9 Old 10-04-2008, 01:46 PM
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check vacume lines from engine to trans. I had same problem with mine when I got it and found the line(s) disconneted
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post #9 of 9 Old 10-12-2008, 08:32 PM
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It sounds like some one had the valve body off and didn't put the shift selector linkage back on the piston. You'd have to drop the pan to see if the piston is moving back and forth when you move the selector.

83 CJ7 258 4spd, black top, yellow middle
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