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post #1 of (permalink) Old 04-11-2002, 08:22 PM Thread Starter
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Question on rear axle (d60) & differential offset

I may have found a D60 to replace my D35, but am new to axle swaps and do's & don'ts. I took some measurements off my D35, and it's approximately 61" wheel mount to wheel mount, but the axle tubes are 20" driver side and 19-1/8" passenger side. Is it because of the shape of the pumpkin that the tubes are different lengths, and the pinion is actually centered? If not, then is this small of an offset something to be concerned with on the new axle? Any help is appreciated.
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post #2 of (permalink) Old 04-11-2002, 09:23 PM
 
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Re: Question on rear axle (d60) & differential offset

You need to measure from the pinion center to each wheel mount on both axles and then compare.
I see a lot of guys running a slightly offset pinion with a centered transfer case output shaft without too much quirkiness other than a slight vibration.
If your transfer case output shaft or pinion looks centered you should measure it anyway and you will most likely find a slight offset.
My 79 CJ5 has a ĺĒ offset to the drivers side. When I built my D60, I matched the offset of the transfer case output shaft exactly. Itís the right way to do it and itís one less drive shaft angle to worry about.
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post #3 of (permalink) Old 04-11-2002, 10:50 PM
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Re: Question on rear axle (d60) & differential offset

With my last rear axle, I had a couple inch drop and a couple inch offset with a 17" driveshaft and no vibration. Don't go by the tube length like mentioned but the pinion. As long as it is close you'll be fine.
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post #4 of (permalink) Old 04-13-2002, 03:54 PM Thread Starter
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Re: Question on rear axle (d60) & differential offset

Thanks guys, that's what I needed to know. I measured to the pinion and it is offset to the passenger side by about 3/4". The D60 I'm thinking about getting has already been cut down, and is just under 59", about 2" shorter than the D35. I measured the spring perches and there should still be plenty of room for them. I'm waiting to find out if the pinion is offset at all, and if it is FF or SF. Does it make any difference other than less stress on the axle shafts if it is full floating or semi? I've been reading as much as I can about it, but I need it put into lamens terms.[img]images/icons/crazy.gif[/img]
Thanks again.
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