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Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

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post #1 of (permalink) Old 09-19-2002, 11:27 AM Thread Starter
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What to use from a Jeep truck

I can get whatever parts I want from 3 J-10 trucks and 1 J-20. I can't sell anything from them. I need to know what parts I could use from them on my cj-8.

They have amc motors so I'll assume the trannies (3 manuals and one auto) will bolt up to my 258. Any idea what trannies these are? What gear ratios?

What transfer cases came in these trucks? Will my dana 300 bolt to any of the trannies?

What axles did these trucks come with? I'm fairly sure the fronts are dana 44s. I've heard of two choices for the J-10 rears, dana 44 or amc 20HD. Is that right? What makes the amc 20HD a HD? What is the axle width? The j-10s have 5 lugs, the j-20 has 8 lugs. I think the j-20 has a dana 60 rear and dana 44 front? Would it's dana 44 be any stronger than one from a j-10?
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post #2 of (permalink) Old 09-19-2002, 12:45 PM
 
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Re: What to use from a Jeep truck

The J-20 came with heavier axles I believe the rear was a D60, yes.....not real sure, but I know the front is definitely a D44. I'd pick those up if I were you....
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post #3 of (permalink) Old 09-19-2002, 01:07 PM
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Re: What to use from a Jeep truck

My J-10 has a T177 tranny which is similiar to the CJ's T176. It is a 4 speed and will boltup to any AMC engine. It might be longer than the CJ version, as I think the input shaft is longer. The D300 should still bolt up to it. The gear ratios are the same as the T176. Depending on the year, J-trucks could of had the T18 or T18A. Again, I think that these are longer than the CJ versions. I'm not sure about the auto's.

My J-truck has a N208 Xfercase (drivers drop). I'm not sure about any other options. Some may have been the Qtrac.

You are correct about the axle choices. The AMC20HD has one piece shafts and much thicker tubes than the AMC20 in a CJ. IMHO, it is a good choice for a CJ.
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post #4 of (permalink) Old 09-19-2002, 01:12 PM
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Re: What to use from a Jeep truck

IMHO, put your body on the J-20 frame. It is much stronger than the CJ frames and you won't have to outboard springs or swap axles.
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post #5 of (permalink) Old 09-19-2002, 01:31 PM
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Re: What to use from a Jeep truck

That is a pretty good Idea. IF those trucks run. That would be pretty cool also
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post #6 of (permalink) Old 09-19-2002, 11:45 PM
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Re: What to use from a Jeep truck

yeah they should either use a 360 or a 401. use a 401, j20 axles, i would use the auto unless it is a th400 with a quadratrac t-case. if it was a q-trac i'd use on of the others. i am sure you can throw something together. also measure all of the front ends. if the front ends are the same you can use the front shafts from the j10's as spares for the j20 axle.
post #7 of (permalink) Old 09-23-2002, 10:23 AM Thread Starter
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Re: What to use from a Jeep truck

Any easy ways to tell the th400/q-trac from the tf727/?. That's a good idea on those spare shafts. How much more does a 401 weigh over a 360?
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post #8 of (permalink) Old 09-23-2002, 10:27 AM
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Re: What to use from a Jeep truck

Fill in your profile.

Here's a picture of a quadratrac transfer case. Note the offset rear driveshaft.


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post #9 of (permalink) Old 09-23-2002, 11:19 AM
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Re: What to use from a Jeep truck

It would be good to know what years the trucks were... do they have round or square headlights?
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post #10 of (permalink) Old 09-23-2002, 09:25 PM
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Re: What to use from a Jeep truck

if there is any difference in weight between the 401 and 360 it is very little.
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