This rear end is from an ’86 suburban. I chose rims for clearance of the tie rod ends, so ~4" back spacing. There is some room to move the wheels in with greater back spacing. I’ll get exact measurements for that. I planned on keeping the 8 lug rear axle, and modifying the front of the donor rig to 8 lug.
The rear tires are 74" wide and the front tires are 63" wide on the ’47.
The ’88 tires are 71". This will move the tires out 3.5" on the ’47. With an adjustment to the wheel back spacing, the tires should fit inside the fender.
