this link was in 2004 then nothing til 2007 and never a word about the 3.69 gears so if this is the same person with a new handle ,, or not we would like to know about the 3.9,, is it a bolt in diff only or do you have to change the sub frame? https://www.crossfireforum.org/forum...ight=3.69+gear
I have found a 3.73 gear set in a diff but the sub frame has to be replaced and some welding is needed to complete the upgrade,,, we want a bolt in as I have the 3.46 as a bolt in, doubleloader we wait your reply thanks for any and all info on this subject. jim