Thor Forums

[Chance]

Originally Posted by Bob Denman

UPDATE: I also see that a 156" wheelbase is used as well...

(Too late to edit my previous post...)

Which Mercedes Sprinter motorhome uses a 156” wheelbase? I’m curious because I’ve only seen the 170”. Occasionally you see a shorter wheelbase from next smaller van length (in the 140s), but I was under impression Mercedes doesn’t allow wheelbase modifications.

Unlike Ford and Chevy trucks, Sprinters have a semi-unitized frame which doesn’t lend itself to stretching. The same goes for Ford Transit and RAM ProMaster. Every one of these I’ve seen keeps OEM wheelbase.

These unitized frames do have a factory rear extension that is bolted on with splice plates. There’s a lot more engineering involved because the metal is very thin and not as easy to modify as a standard truck “C” channel frame.