More Marmon Herrington Questions

[Tony Smith]

Originally Posted by Allan Currey

My guess for the 6x6 MH Fords is that they are on the same chassis as the 6x6 ACV prototypes, which I believe were on a Ford 11T 156 inch wheelbase. I stand to be corrected, of course.
The 156 inch measurement comes from an article on the ACVs written years ago by Paul Handel. I think 158 inches is the 4x2 chassis, not sure why a 6x6 would be shorter.
Cheers,
Allan

The "wheelbase" for a tandem pair of rear axles is measured to the centre of the pair of axles. If you look closely at the pics re-posted by Cliff in the Thornton-Welles diff thread, you will see that the tailshaft from the Transfer Case is the same used in the 4x2/4x4 truck, but the length of the pinion onto the T-W drive splitter is shorter than the pinion of a Ford Differential, my guess would be 2in shorter. This would move the centreline of the T-W drivesplitter/tandem bogie assembly 2in forward of the single Ford Truck rear axle.