I purchased two A 833 transmissions from a known Pro Stock drag racer as they were switching to Lenco transmissions. The parts in the transmissions were all over the board. There were red stripe transmissions, but I never had one. These were 18 spline with the good input shaft but one was a 308 bearing while the other was a 307 bearing. I think they were both 2.66 first gear. One had Doug Nash sliders and welded dog teeth, the other had similar parts but was a Liberty, both worked very well in a 9500 RPM small block W2.

Heard that they were not so good in a Hemi with a 2800 pound clutch. 1600 pound clutch and they would be fine. Today, I'd use GM synchromesh fluid, much better than anything we had then, although fluid never seemed to be the issue.

No one used the aluminum case for long. The main shaft wanted to push away from the counter shaft and the aluminum was not good at preventing that. The aluminum tail shaft was a good idea, but are quite rare now.