Grit dog wrote:
OP.
Tires wheels suspension is easy. Slap some good E load tires on any OE or similar quality rims. Suspension, you have multitudes of options.
Any 9.75 axle 150 is good for 5klbs so the afformentioned 2500lbs payload is about right and a practical limit iMO.
Grit generally good thoughts.
BUT some 15 series rigs like my new to me GM, it has a 10 bolt 8.5" RA. NOT the 12bolt 9.5" like my son's 05. I believe in GMs case, the 6 cyl get the smaller RP setup. The V8's the 9.5" setup.
Like ALL things great and small, one needs to look at actual parts to see if you have the X or Y version.
Im not recalling OP saying engine, probably did, I would swag small eco boost and NA V6 could have smaller axles vs the larger EB and 5.0 V8.
Marty