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For some reason I thought you had 2.73 gears, back when you were planning complete axle swaps I was hoping to get those diffs. I appreciate the offer but I was looking for 2:73 diffs.

Dang, I guess I will not be getting those pumpkins!! :cry:

The problem is in the civy world there are two carriers, one for 2:73 and down and one for 3:08 and up, the HMMWV uses the 2:73 and down for all applications and the 2:73 and down carrier is rare in the aftermarket world, as almost nobody uses a gear ration that low.

All the carriers for the HMMWV are the same part number so as you found out there is no split in that application.:( EDIT, I wonder if the civy 3.08 gears are different?

The AMC 20 diffs have an 8 7/8 ring gear and are about as tough as a ford 9", the HMMWV of course has an aluminum housing so I am not sure if that would lower the durability or not. I built a Duramax/Allison/MP T/C powered HMMWV so it has part time FWD and I have beat on it as hard as I can on...

I would not think the mid 5K range would be too tough, my bare bones M998 with a Duramax/A1000 weighs in at 5,300. One of the possible issues is narrowing the body, as is the drivers feet are outside the frame, not allot of room to narrow. This will be interesting for sure.

I guess my question would be what are you going to compete against? Make sure you keep us updated, this definitely belongs in the HMMWV mods forum.