10" on a stock 73 Duster?

Dusterdenovo said
View attachment 1716058127'73 with 295/50R15's, 15" Cragars 10" wide (stock backspace whatever that is), ESPO +2" springs in stock position. About 1/2" clearance inside from leaf springs . 8 3/4 BBP.

How far do they stick the tire past the wheel well? Reason I'm asking is because I've got a big bolt pattern 8 and 3/4 in my 74 with 295s on it with an 8-in wheel