Does 1987 Ford E150 have a 9 inch rear differential?
The 1987 Ford E150 van could be equipped with a 9-inch rear differential, but it was not the only rear axle option available. Some E150 vans produced in 1987 came with an 8.8-inch rear differential. To determine which rear axle is installed on your van, you can look at the differential cover. The 9-inch rear differential has a round cover with 8 bolts, while the 8.8-inch rear differential has a square cover with 4 bolts. Additionally, the 9-inch rear differential is typically wider and heavier than the 8.8-inch differential.