Originally Posted by Stevo_sikkstang View Post
Whats up guys i have a 2002 mustang gt. I recently installed my rear end gears (3.73) and the car was running good until it started to grind a little everytime i shifted into 3rd gear! And now it started grinding into 4th as well so i think its time to fix it! Im not a pro at this these things but i know the basics on mechanic work. I replaced a few things myself like a clutch job.I was just wondering how hard it is to replace the synchros or if i need any special tools? Thanks in advance to you all
The TR3650 isn't all that easy but an inexperienced person with patience and good mechanical skills can do it.
The 3, 4 and 5 rings are not so hard to access once you get the main case apart. The 1, 2, and reverse rings require some good gear pullers and a press to get it all back together.
Depending on how much scraping has been going on you may need a new third gear, a 3-4 synchro slider assembly, and maybe a new input shaft (AKA Fourth gear).
If the car has really low miles on it and the 3 and 4 synchros both went out prematurely, you may have a warped 3-4 fork. Otherwise, the third gear ring tends to simply wear out first.