There is a lot of information about tire sizes available for a GMC Sierra 1500. It would be best to check with the GMC retailer and see what they have in store.
The gap for spark plugs in a 96 GMC sierra is .60
6.5"
4x6 inches
3
The 1996 GMC Sierra DRL module is located underneath the dash panel on the driverside between the pakingy brake pedal and the brake pedal.
5.7L
Can't speak for all, but mone does
you have to replace it
R-134a
yes
put a hole in it.