Originally Posted by 6PAX
What I would like to know is if there is a limit to how much backspacing a wheel can have from a safety point of view regarding the structure of the wheel. For example, I have a 10" wide wheel with 5" of BS. How much more BS could that same 10" wheel have and still be structurally sound/safe? 6", 7", 8" ? I hope this makes sense.


Wheel manufacturers will not sell a wheel that is compromised with an attempt at building a wheel with too much backspacing. In other words, you will not be able to order one that exceeds the safety threshold.

1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)