The HD line of trucks have a wider front track width than in the rear and I want to buy a set of 20x8.5" rims to compenstate for the difference.

how much less backspacing would I go with in the rear?

or

does someone have a "for sure" measurement of front and rear track widths?

thanks


I'm trying to even out the track width, then mount some Toyo Proxies in a
305/50-20.