AMC 20 & Dana 30 Gearing Questions

DrDirt · Post by **DrDirt** » Sun Nov 12, 2006 2:56 pm

OK, I've asked this before, and instead of writing it down, I always forget:
What is the cutoff on gear ratios where the carriers have to be changed?, ie, can I put 4:10 gears on a carrier that currently has 3:54's ? Do the AMC 20 and Dana 30 carriers have different cutoffs for gearing?

letsroll · Post by **letsroll** » Sun Nov 12, 2006 4:06 pm

for dana 30 and 35 it is 3.55 and down. So you need a 3.73 up carrier for the 4:10s. Do not know about the 20.

letsroll · Post by **letsroll** » Sun Nov 12, 2006 4:08 pm

BTW I have a complete carrier for a 3:73 up dana 30. Cheap!

Mudbug · Post by **Mudbug** » Mon Nov 13, 2006 8:46 am

Can't you use 'thick gears' for the dana 30 and use the 3.73 carrier to run 4:10?

letsroll · Post by **letsroll** » Mon Nov 13, 2006 11:16 am

Yes you can use the thick gears to compensate. I had assumed he already had gears. But if not, then the little extra for the thick gears is probably a cheap alternative to buying new carriers. Used open carriers should be very cheap though if gears are already purchased. BTW Dr. Dirt, I may have been wrong when I told you my carrier would not work for you. Seems there is conflicting info on whether and TJ and CJ carrier will interchange. I would check with Randy's gear whereas they are the most reliable and quick to respond of the gear vendors out there that I have worked with.