Re: [AMC-List] Jeep axles in AMC cars?

["Swygert, Francis G MSgt 436 CES/CECM" <Francis.Swygert3@xxxxxxxxxxxx>]

I can only work so much from memory! Thanks for looking those tracks up
and correcting me Andrew!! 

Sounds like the narrow track SJ axle would be a good candidate for the
63-66 Classic/Ambo (58-59" for SJ vs. ~57.5" for the Classic/Ambo) and
the wide track CJ axle a good candidate for the American (54.5" for CJ
vs. 55" for American). The wide track CJ axles are most likely AMC 20s
though. The only problem with swapping hubs is you need NEW hubs to put
on used axles, and new hubs are hard to find. You can't put used hubs on
another axle and expect them to last. Better to redrill the Jeep hubs.
Most production cars used 3.5" backset on 7" wheels. The 3.75" backset
wheels I ran were considered "custom backset" by American Racing. The 6"
Rambler wheels I had at one time had a 3" offset, IIRC. Most of the
older cars centered the disc in the rim, so the tread should be close to
the flange to flange width of the axle. There were exceptions -- such as
the Jaguar, but most standard wheels were centered on rear wheel drive
cars through the early 80s -- at least for the plain-Jane wheels and
tires. Styled wheels, like the Rallys and such, usually have an offset
to fit it in the car. But the generic stock wheels are most likely
centered. 

-----------------
Date: Thursday, December 14, 2006 02:05 PM
From: andrew hay <adh@xxxxxxxxxxxxxxxxx>

" From: "Swygert, Francis G MSgt 436 CES/CECM"
<Francis.Swygert3@xxxxxxxxxxxx>
"
" It does state that "wheel to wheel" (mounting surfaces on drums?)
width
" of the narrow track Wagoneer (SJ) D44 axle is 58-59". The wide track
" axle is 61-62", which would make it 2-3" narrower than a 63-66
" Classic/Ambo axle (tread width on those is about 63"), and that should
" make it a good fit for an American. CJ AMC 20s are 50.5" narrow, 54.5"
" wide track. 

according to my old stack of car&driver annual new car issues, rear
track on the '65-6 classic and ambo is 57.5".  rear track on the
american is 55.5" and the hornet et al axle is the same as the early
amx and javelin, 1.5" wider than the american.


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