8 3/4 backing plates onto a small bolt with upgraded big bolt shafts
BBP axles have a different flange offset than SBP axles. So if you use BBP axles with a standard BBP flange offset, you need new backing plates and drums (10x2.5”).
If you use BBP axles that have the SBP flange offset, like the Yukon’s, then you have to use the SBP 10x1.75” backing plates and drums and you have to have the SBP drums drilled for the 5x4.5” pattern.
The backing plate offsets are different as well, you can’t mix and match backing plates and drums.
It is far easier to use standard BBP axles and upgrade to the BBP 10x2.5” drums, the parts are far easier to get ahold of and usually cheaper. And you don’t need to have anything drilled or changed, everything is off the shelf.
BBP axles have a different flange offset than SBP axles. So if you use BBP axles with a standard BBP flange offset, you need new backing plates and drums (10x2.5”).
If you use BBP axles that have the SBP flange offset, like the Yukon’s, then you have to use the SBP 10x1.75” backing plates and drums and you have to have the SBP drums drilled for the 5x4.5” pattern.
The backing plate offsets are different as well, you can’t mix and match backing plates and drums.
It is far easier to use standard BBP axles and upgrade to the BBP 10x2.5” drums, the parts are far easier to get ahold of and usually cheaper. And you don’t need to have anything drilled or changed, everything is off the shelf.
