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post #1 of (permalink) Old 08-05-2001, 02:39 PM
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CJ5 Auto

I have a '76 CJ5 and would like to convert to an auto tranny. But which should I choose?
TF727, 904, 999? Gm Th350?
Which adapters will I need?
I run an AMC 360 V8 engine

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post #2 of (permalink) Old 08-05-2001, 02:48 PM
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Re: CJ5 Auto

I don't have the book I need close at hand but I think the shortest auto out there is the TH350 and in a CJ5 the shorter the better right?

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post #3 of (permalink) Old 08-05-2001, 09:06 PM
 
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Re: CJ5 Auto

even with a th350 the rear drive shaft angle would be so severe that the ujoints would pop just about every time you hit the go pedal measure your current tranny tcase and than look at how short you rear drive shaft is then measure a auto tranny adapter and tcase

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post #4 of (permalink) Old 08-06-2001, 03:45 PM
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Re: CJ5 Auto

You might be able to move the engine forward a bit to fit the TH350. Possibly more with a electric fan. You could also consider using a Postal Jeep grill. These grills are more convex than the regular grills allowing more room to move the engine forward. Just a couple ideas, I've never done it myself.

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post #5 of (permalink) Old 08-06-2001, 07:16 PM
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Re: CJ5 Auto

If it helps any the 904 AND the 727 are both 22 1/2" long from the bellhousing. the grand wag transfer is about 16" to the center of the front ujoint. The T17? and D20 are 30" from the bell to the center of the ujoint. You will have just about enough room for the 2 joints and a slip yoke for a drive shaft. But if I remember right the CJ5 did come with a TH400 and Q-track. The TH400 is r-e-a-l-l-y long sucker. It's 27" long. Hope that helps.
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post #6 of (permalink) Old 08-06-2001, 07:18 PM
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Re: CJ5 Auto

Oops! change that to a T18.

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post #7 of (permalink) Old 08-06-2001, 08:30 PM
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Re: CJ5 Auto

The only atuo trans the I'ver ever heard of successfully in a CJ5 is the Ford C4. Its is one of the shortest auto trans made.

JACOB
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post #8 of (permalink) Old 08-06-2001, 09:13 PM
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Re: CJ5 Auto

The TH400/quadratrac was not offered nor would fit in the CJ5. In a CJ7, the rear shaft is 17".

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post #9 of (permalink) Old 08-07-2001, 02:23 PM
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Re: CJ5 Auto

nope, CJ-5's never came with auto trannies. That's why they made the cj-7 and lengthened the wheelbase. I'm planning on converting my postal to 4x4 in the near future, and will keep an auto tranny. I will probably a) use an electric fan so I can scoot the motor forward a bit b)ditch the 232 ci I-6 for a 5.0 (shorter motor), c)lengthen the wheelbase about three inches and d)take full advantage of my postals' grill, which gives me another couple of inches. Four Wheeler magazine converted a postal years ago using a dana 300, stock 727 TF and 232ci motor and said they had no problems with driveline angles. I think they might've said that for publicity, but the conversion was successful. I have an extra postal grill if anyone's looking.

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post #10 of (permalink) Old 08-07-2001, 02:23 PM
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Re: CJ5 Auto

nope, CJ-5's never came with auto trannies. That's why they made the cj-7 and lengthened the wheelbase. I'm planning on converting my postal to 4x4 in the near future, and will keep an auto tranny. I will probably a) use an electric fan so I can scoot the motor forward a bit b)ditch the 232 ci I-6 for a 5.0 (shorter motor), c)lengthen the wheelbase about three inches and d)take full advantage of my postals' grill, which gives me another couple of inches. Four Wheeler magazine converted a postal years ago using a dana 300, stock 727 TF and 232ci motor and said they had no problems with driveline angles. I think they might've said that for publicity, but the conversion was successful. I have an extra postal grill if anyone's looking.

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