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Old 04-20-2008, 12:52 AM
soxcloud soxcloud is offline
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transfer case shifter in J-20

I have a 1978 J-20 with a TH400 auto transmission and a Dana 20 transfer case. I have a question regarding the shifter for the transfer case. The Jeep manual says the J trucks and the Wagoneer used the U path transfer case shifter. My truck has the straight line transfer case shifter which the manual says is only used in the CJ jeeps. I have previously used the U path transfer case shifter in an older Wagoneer that I owned and I prefer it to the straight line shifter.

Is the wrong shifter installed in my J-20 or is the manual wrong? If I want the U path shifter in my truck, how many parts do I have to change and how much work is involved?
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Old 04-20-2008, 05:23 PM
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Any relics of a Quadratrac? Hole in the glove box? Holes in the floor for the low range shifter? By '78 I'd think a D20 in a TH400 J-20 was very unlikely, though possible. If the truck came witha Quadratrac and was converted, the shifter likely came with the transfer case. I've only seen CJs with the factory inline shifter - Commandos and FSJs always got the U-shifter, AFAIK.
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Old 04-20-2008, 06:03 PM
soxcloud soxcloud is offline
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transfer case shifter in J-20

This 78 originally had a 4 speed with the spicer 20 transfer case. One of the early owners decided that they wanted an auto transmission instead and went to the trouble of converting it over. Since it wasn't an automatic setup to begin with, there is a steering column in it that does not have an automatic shift lever and linkage. That is one of the problems I am dealing with as I want to get rid of the cable shifter installed on the transmission hump.

This information doesn't help explain the straight line dana 20 transfer case shift installation.
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Old 04-20-2008, 11:44 PM
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shackwrrr shackwrrr is offline
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probably the po used a th-400 and xfer case from a cj with a v8
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Old 04-20-2008, 11:48 PM
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Does the transfer case shift to the right or left of the tranny shifter? If its to the left, its probably a 208. They shift in a straight line..

Thats what I have in my J20...
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Old 04-21-2008, 10:53 AM
soxcloud soxcloud is offline
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transfer case shifter in J-20

I'm sure my transfer case is a spicer 20. I've had one before on a 66 wagoneer with a Ramsey PTO winch and I have the 3 part 1978 Jeep manual that clearly shows the spicer 20 transfer case.

The thought that when the tranny swap took place a TH400 with an attached spicer 20 out of a CJ was probably swapped in to replace the original 4 speed and attached transfer case is a likely scenario and would explaign the straight line shifter.

I would still prefer the U shifter and may try to find one when I can. Thanks for the input.
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