Took my 10 bolt rearend from my 66 chevelle to them for a refresh. The old ring and pinion gears were a bit pitted. They told me they wouldnt install new posi unit with those gears. New gears run about 300.00.
Brick told me that he had a set he would sell me for 100.00. Completed the whole package. Wow, what a GREAT job. Way to go guys.