I'm running 4.88 for last few years.
Use them on the highway and off road. RPM doesn't seem too high, even when doing 80mph.
Got them from Yukon when were making them.
#1 Chry 9.25 YES, you have to shave part of the ring tooth out to fit cross pin.
#2 Chry 9.25 do not need carrier. Carrier will hold everything up to 4.88 which is max what this axle ever had.
#3 Dana 44. Can use stock carrier. However you need thick gear.
#4 Dana 44. Need to shave corner of ring tooth as well.
When you shave/cut (remove) part of the ring gear tooth to fit cross pin, it does not interfere with tooth bearing surface/pattern. This is a common practice and does not adversely affect bearing of the axle.
Last edited by 94Beater; 07-04-2014 at 01:34 AM.