What kinda of transmission is in your 93 s10 blazer 4 wheel drive with a 4.3 votech motor?
A 1993 S10 Blazer 4x4 with the 4.3L Vortec V6 engine most likely has a 700R4 automatic transmission. However, there's a small chance it could have a manual transmission, though that was less common with that engine and drivetrain combination in that year. To be certain, you'd need to check the vehicle's documentation or look at the transmission itself.