[jweb]

If you plan to use an Explorer you won't need to shorten one side.

I have one under my 51 with 1" spacers. The stock Explorer 8.8 is 59 1/2" wide.

Also, the transit wheels have 5-6" backspacing ( I can't remember the exact). So you could use the 8.8 with adapters to make it all work.

Some people are afraid to use adapters but they're a good way to dial in the exact width you need. Just spend the money and buy good quality ones that are hub centric on the rotor and the wheel. I have a few thousand miles on mine with no issues and plan to do the same on my 64 Suburban with an 8.8 and transit wheels