I probably should have said "departure angle" re. the rear end of these units scraping driveways rather than saying "ground clearance". I haven't calculated based on specs shown, but it looks like the short to medium length PCs all have similar lengths from rear axle to rear of vehicle; hence, the 2100 with its short wheelbase having more of a problem than a 2350, and it more so than a 2351. But, if a 2551 with its longer wheelbase is having "near misses", then these rear ends are too long and/or too low. No lift kits for me, though; I'd probably just get springs re-arched enough to raise ride height at axle only an inch or two, the height of it if built as a van as mentioned before (in other words, not looking "jacked up"), and it should eliminate drive line concerns. A one inch increase over axle would be several inches at the rear end. Various air bags as many folks use would be an option, though their potential excessively firm, rapidly progressive spring rate when inflated enough to provide adequate lift would be a concern. That said, besides research, my last experience was with Air-Lift Poly-Air stuffed into the rear coils of a Buick Electra in the '70s. And it sounds like elimination of the Sanicon would help, and one thing less to go wrong.
