So I did a little searching on here about rearend widths. I have talked to a guy who has what he says is a 3.08 GEAR 1960s CHEVY 10 BOLT REAREND 57 INCHES WIDE , CHEVELLE, MALIBU.......this should be an 8.2, correct? He says measurement is from backing plate to backing plate......if I have read up correctly, this should work well in my 87 right? Even better since I am having to use the 2" spacers because of the 6.5" backspace on my wheels?