hmmm i think they're 4.75, they were Logans old rims. I got 33 x 12.5's from him mounted on these rims but the tires were crap so I sold them to a farmer & mounted the 32 x 11.5 BFG's on the rims.
nice truck man, we have a few things in common, bfg mud terrain TA's, pro comp wheels, 02, 03 blazer... I'm thinking of either a 6" super lift or a SAS from Diversified Creations - thats a 6 or 8" lift but I buy a dana 44 front axle... sweet truck!