[CC69Rat]

One thing you want to check before you buy your wheels.

The 67-Early 69 rear end housings were 1.5" shorter than the late 69-72. This can make your break your wheels either fitting or not.

Steppers are tough. The fenders are not as big, and with a later housing it's going to be even more difficult. With a 5/7 drop on a stepper it's going to be critical.

If you measure the rear end housing, have a buddy / wife hold one end of a tape measure against the inside edge of one rear brake backing plate and just measure over to the other side in this same spot. The early housing will be 55.5" long. The later one will be 57" long.

3/4" per side can make a big difference. Wheels are not cheap. I wouldn't use the sizes from just 'any stepside' as all these trucks are different.

I can tell you I had 20x9 with 4.75" backspacing on a 68 stepside with the narrow housing and it was pretty close to perfect. 255/45/20 tire. 5/7 drop. I just like a little more sidewall. It was very tight on the outer lip though.. AND I have the early housing.

Just figure out which one you have and we'll go from there. I'll help you all I can. 55.5 or 57. I'm betting it's the later one. Most if not original 5 lug housings are 57" long. Ive never seen an original 55.5" 'er with 5 lug but they may be out there.

Just for reference, the axles in the 57" housing are 31 5/16" long per side. 55.5 they are 30.5" long.

It's critical you know this before you get your wheels, especially if they're one off / billets, etc.