1982 Mazda rx7 rear
 

Was wondering if anyone know where I can get the gasket set for my 1982 Mazda gsl rx7 rear . .idk if it will hold up with my 13b Bridgeport engine , but for now I need a gasket so it won't leak.. oh and what oil should I use for the rear?? Any one has done a rear end upgrade.? Like a mustang rear what are the steps I should do for that. ? The car will be driven in the street but also at the tracks. . And all the torque from my 13b I think it will break my gsl . Idk help please

There are no gaskets on the 1st gen rearends. the is a seal at the end of each axle, and a seal at the pinion flange. Where the 3rd member mates with the axle housing, there should just be RTV. As for power handling, a non-turbo 13B isnt gonna damage it unless you do lots of clutch dumps or drag launches w/ stickier tires. A rear end upgrade, outside of maybe a late model 1st gen rear (84-85 had thicker and bigger axles), such as a ford 8.8 isnt neccesary until you make a lot more power and/or drag race

Oil will be the usual 75w90 or 80w90 w/ a LSD friction modifier additive