Review on APDTY 711212 Differential Replacement Manufactured by Joseph Marshall

Works great! Installed on a 1992 Chevy K2500. It engages 4WD and I don't have to drive forward to engage it like I had to with the old one and it engages 4WD MUCH faster than the stock drive! Recommended for anyone who wants to upgrade their old series thermogas type. drive unit. It doesn't come with the wiring and metal gasket needed to upgrade an old Thermogas actuator, so you'll have to purchase the wiring harness separately, which costs about $40. Here is a link to the one I used. =B00CMWJ3TS&pd_rd_r=b8019661-67a4-11e9-81c3-e19ee3aed6a0&pd_rd_w=JQ9PP&pd_rd_wg=TG3aT&pf_rd_p=aae79475-6dc9-4a12-80e8-27b63108fa72&pf_rd_r=BMDFHKXNDM2HWA9M67F9&psc=1&refRID=BMDFHKXNDM2HWA9M67F9