When it came time to lower the rear of our 1969 Ford F-100 project, we knew it was only best to drop the rearend and at least do a quickie "garage floor" rebuild before flipping the springs and ...

The Chevy 12-bolt axle shaft (left) is tapered; the Ford 9-inch shaft is the same diameter throughout its length, except for the short section just after the spline end. This makes it easy to narrow ...

There are many reasons to run a high-pinion differential in a 4WD vehicle, and there are many reasons to run a Ford 9-inch axle. When used in the front of a vehicle, high-pinion differentials ...

I am building a Jeep Wrangler YJ with an eye towards survivability. So far I've swapped in a healthy Ford 351W V-8, an NP435 transmission, an NP205 transfer case, and a fabricated Ford 9-inch rear. I ...