Back spacing on B body rear end in 73 Duster
Crackedback is right on!
I use a later 68-70 B body rear with 1/2" relocated springs (perches 42" c-c) on my '74 Duster. I have 18x10's with 7" backspace on it with 295/35/18's. Wheel is centered, pretty much no room anywhere. :D
My combo would have the same centerline as an 8" wide wheel with a 6" backspace, so with the shorter rear housing 5.75" should be pretty close.
As far as the tire, with the stock spring location 275 is about as wide as you can safely go unless you jack up the rear ride height to clear the quarter. I tried a set of 275's on my Duster before I swapped the rear end out and did the offset, they were clear but not by a ton.
Crackedback is right on!
I use a later 68-70 B body rear with 1/2" relocated springs (perches 42" c-c) on my '74 Duster. I have 18x10's with 7" backspace on it with 295/35/18's. Wheel is centered, pretty much no room anywhere. :D
My combo would have the same centerline as an 8" wide wheel with a 6" backspace, so with the shorter rear housing 5.75" should be pretty close.
As far as the tire, with the stock spring location 275 is about as wide as you can safely go unless you jack up the rear ride height to clear the quarter. I tried a set of 275's on my Duster before I swapped the rear end out and did the offset, they were clear but not by a ton.
