Comments on: Gears Preview

By: Rich Ruiz

Rich Ruiz — Mon, 06 Aug 2007 07:36:37 +0000

The rear Dana 44 on the X uses a 30 spine shaft. The rear Dana 44 on the Rubicon uses 32 spines. Also each uses different ring & pinion.

By: ThinkMud

ThinkMud — Thu, 02 Aug 2007 05:16:14 +0000

That’s good to know, b/c my gears are in the mail (only stock 4.10s, but they are replacing my stock 3.21s).. Can we get an install kit from the dealership?

By: Paul

Paul — Wed, 27 Jun 2007 04:19:22 +0000

on the 07 JK unlimited you have to get install kit. I have boxes of carrier and pinion shims and none will work. also, like the article says, the first few thousand jeeps had 7/16 bolts and then they went to 1/2. The new gears (Superior and Sierra) are all 7/16 bolts. So you have to buy spacers and bolts. And the bolts are right hand tread, not left like older Dana’s. Where do you get the bolts since no one makes them?? The dealer, they sell a bolt kit for the early 2007 JK”s and the spacers I got from a Differential supply shop. Now I need Carrier shims. this simple job has now taken a week. So don’t just buy gears, buy everything before you take it apart