[Beuford]

I measured down 2 1/2" from the center of the swing point at the top of the pedal arm and drilled and tapped for a 3/8" bolt. I then made the standoff 1 1/2" you see on the pedal arm and drilled the end of that and tapped it for the shoulder bolt (thru the clutch master cyl rod)that was in the `90 truck. The hump is a high hump from a 4x4 but a 4 spd hump would be better as you wouldn't have to weld up the other hole. The hole for a 4 spd shifter is in the perfect location for the 5 spd. My `90 5spd was a short tail shaft so was the turbo 350 that was in the `70 stock. Both transmissions measured the same overall so I didn't have to cut the drive shaft. You'll need turbo 400 front yoke because the tail shaft splines are the same. The problem with the drive shaft from your donor truck is the universal joint will probably be 3 1/2" across and have 1.062 cups. The `70 yoke is 3" across and has 1.0 cups.