1996 Coachman on 1995 Chevy van or 1996 Express? Then which chassis size?
I've seen max 5000 for G10, 6500 G20, 8000 G30 with the 5.7 but that is also dependent on axle ratios and having the factory towing package. Also in the assumption is empty van with only a driver. Conversion fittings, cargo, passengers all cut into the towing capacity. E.G. 5000 pound van with 13,000 GCWR might tow 8000 empty, but only 5000 if loaded to 8000 pounds.
1996 it gets more complicated. Express got ladder frame (earlier van was unibody) and new Vortec engines about 20% more power than same sizes with TBI, raising maximums depending on GVWR options and drive train options. With Vortec 5700 and 4.10 axle, max tow for 3500 and 2500 with 8600 GVWR was 7500 pounds. That dropped to 5500 for 2500 with 7300 GVWR or extended (different trans and lighter axle). But again, axle ratios vary, 3/4 ton could be 3.42, 3.73 or 4.10, 1-ton could be 3.73 or 4.10.
If you can figure out just what equipment you have (GVWR options, axle, axle ratio, transmission) and G20/2500 vs G30/3500 the towing capacity tables in your Chevy owner's manual should have the numbers.
If your conversion van is on a G10/Express 1500, think in terms of 2000-3000 towing, because it was something under 5000 when the van was empty. That's driven by springs, tires, rear axle, rather than engine power or gearing.
Tom Test
Itasca Spirit 29B
