Just helped Rick C with this. When you get the numbers off the case we can determine if Muncie or T-10. Buy Hurst shifter # 3914339 listed for 68 firebird. If you have T-10 buy install kit #3738609 for 74-81 firebird w/ T-10. If you have Muncie, buy the install kit recommended for stock 68 Firebird. Links: http://store.summitracing.com/partdetail.asp?part=HUU%2D3914339&view=32&N=700+400134+300811+4294908153+4294907958+4294925083+4294889560
