Can't Get Enough
Join Date: Dec 2000
Location: Erie, Pa
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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.