I'm going to replace my clutch real soon and when i do i want to put in an aluminum flywheel, but i dont know how many spline. I have an 87 GTA with a 305 5-speed if anyone knows help me out thanks

 

should be 10 spline, but thats just most common, that wont affect flywheel though, just the clutch disc

 

thanks

 

Flywheels don't have splines. The spline count on the clutch doesn't matter to them.

The T-5s in these cars have a 26-spline 1-1/8" input shaft where the shaft goes into the clutch. You'll need that for a clutch, but for the flywheel, it wont enter into the picture.