I'm thinking about getting the SOS 6 speed conversion.
Anyone know if they have any faults?
I had a used 6-speed installed (purchased from SOS) with the SOS sport clutch and also the 4.23 final drive and LSD on my 91. No problems.
I think the 6-speed really brings the car to more modern standards and the 4.23 is more responsive for street driving. Very happy with the results.
A nice upgrade if your transmission needs to rebuilt anyway.