1984 Celica GTS 4.10 open diff. This is the toyota 7.5" ring and pinion used in pickups, vans, and cars from the 70s through 90s. Ratios from 3.7 to 5.8 available as are various locking and LSD carriers. Housing is easy to mount with lots of bolt hole locations and no protrusions. CV shafts made from toyota tacoma front axle inner CV joints which fit the diff.