When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
na? only factory options are 3.9 4.1 and 4.3. there are places that will take a 1st gen set and put the long pinion shaft on it, so that gives you 4.4, 4.88, and 5.12.