Need a little help
 

So, i saved some cash bought a 7.5 3.42 gear set. I have a stock 91 RS with a 305. I took the car to a guy that has years of experince in rebuilding trannys and rearends. He told me that the gears I bought do not work. He had my rear end fully apart with the gears in and he said the pinion was not connecting with the ring gear. I have looked at this subject for the last hour. I have no experience doing rear ends but I am about to tear this thing apart. Does this issue have to do with my carrier? I currently have 2.73 gears in there right now. Do I need a ring spacer to make these work or did I really buy the wrong gears. Please see the attachment for pictures of the gears. I am pretty pissed because I bought the gears for 65 used and paid the guy 125 bucks to have the same 2.73's in my car right now. Thank you in advance for your responses.

Re: Need a little help
 

unfortunetly hes correct. the proper ring gear spacer or a different carrier would work. they also make thicker 3 series gears for 2 series carriers. bummer.

Re: Need a little help
 

So would it be best for me to find a ring gear spacer? I am not trying to make this a 350 horse power car. I just want a little more pickup an go. really dont want to get a 3 series carrier either. Where could I go to get the proper size ring gear spacer.

Re: Need a little help
 

Welcome to TGO.

You might take a peek at the following for general info on the subject:

https://www.thirdgen.org/forums/tran...-10-bolts.html

JamesC