Search results for query: *

Ok guys, I'm stumped. 71 dart with an LA 360 pushing a '73 727. Rear is an 8.25 geared at 2.45 and 225/60/r14's. According to the manufacturer's spec on the tires, the math works out to a 26 tooth speedo gear. The problem is, if I calculate it manually, I get 24-25 tooth, which is insanely...

So I can't put the car together yet cuz it's going out for blast and paint. But I'm trying to source a driveshaft. I'm putting in a 360 with 727 and 8.25 rear end on a 72 swinger. Anyone know of a resource I can look at to find my future driveshaft length?