Crush Collar for pinion in AMC 15 rear?

Gremlin's 40th birthday means, she gets a new rear end!    Unfortunately, we can't locate a crush sleeve for the pinion shaft.  I have a NAPA and a Lordco parts place available to me. Lordco says No can do, NAPA is looking.
 
A few years ago when we did the AMC 20 in my Javelin, we found a crush collar for that. Are crush collars interchangeable between rears or is there another similar part we can use?  I suppose we can re-use the old one if push comes to shove, but I'd rather not.

Or call Jeep vendors?

The crush sleeve for a Dana 35 from the rear end of a 98 Grand Cherokee w/4.0 fits it. I still had to get one from the local Dodge/Jeep dealer.

For reference, may help in your search, from 67-72 Parts Manual, it is possible to replace the Crush Sleeve with a Spacer and Shims, also available from RaTech iirc, as mentioned in Performance American Style, if so desired.

Edited by PHAT69AMX - May/10/2019 at 12:55pm

Crush sleeves are all about speed and cost reduction in manufacturing. Ideally you use a solid spacer and forget the idea of using shim stock stock as it will eventually get beat out in that application.