Originally Posted by Forty9
I have a 4 spd w/torque tube. Washer dimensions are 59mm(OD) x 52mm(ID)x 2mm thick. I too was missing them when I got my truck in 87 but was able to get used ones from a parts supplier at the time. The washer fits a little loosely in the cap and of course must just slip over the end of the torque tube.

Thanks for measurements

Now comes the hard part. I'll see what I can come up with