Simple & Easy-to-Use Accurate & Reliable Complete instructions are at www.ratechmfg.com Ratech Pinion Tool Catalog page 8.2 Chevrolet 10 Bolt (65-72) 10002$29.00 7.5/7.625 GM 10 bolt 10003$29.00 8.5 GM 10 bolt (1973-97) carrier brg. LM501314 10004$29.00 8.5/8.625 GM 10 Bolt (98-up) carrier brg. LM603012. Note: GM made some housings with LM501349 for a couple of years so please verify which bearings your housing contains. 10008$29.00 12 Bolt GM Auto. (65-72) 10005$29.00 12 Bolt GM truck (63-81) 10010$29.00 8.8 Ford 10006$29.00 Dana 60 10009$29.00