15 inch sould be the stock rims and 31 should be the norm for the tire size
235/65/R16
my stock ones are 265/75/r16
Chevy speaker size1988 has 4x6 in both places.
17 inch ........ 265/70R 17
what size rims are on a 1992 chevy 1500 w/t truck
4l60e
P245/75 R16 Chevy stock size
The 1998 Chevy Express 1500 Van could have the 4.3, 5.0 or the 5.7 engine.
16"
16"
16 in
225/75/15