4 link rear end question

[elwaupo]

I bought a Heidts 4 link rear suspension for my 69 Camaro. The car currently has a 10 bolt which measures 60.25”. I also have a 12 bolt out of an early Nova that measures 57.75”, my question is will the 12 bolt mount on the 4 link without any fitment problems?
I measured the rear wheels to the inside frame and it doesn’t look like there would be any problems, in fact it might let me mount wider wheels.