Ryan's M3 medium

[cantankrs]

Anthony Urek's current thread has the picture below (the last pic) posted by 'Roy206' of a 6046 power pack. Also in the thread is the same chap's link to their running 6046
Note that there were other combinations of GM 6-71's such as a few pics I've gathered from eBay over the years of GM powerpack configurations for various applications.
Also, here in Western Australia is a fairly legendary primemover or tractor truck built after the war to haul iron ore to port named the Rhodes Ridley and it has a twin powerpack from an M3 Medium along with a gearbox and I think they used the crown wheels and pinions in specially cast diff housings. Click the link to visit their website.
And for Tony regarding the Sentinel, while it was based on M3 Medium drivetrain and tracks, the AC1 employed 3 x Cadillac SideValve V8's. Two other engine configurations tested was the 3 x V8 blocks mounted onto a welded steel common central case something like the Chrysler Multibank; and then 3 x Gypsy Major (I think it was) aircooled inline aero engines in the intial clover leaf layout. The thing was that Australia seemed to not have the machinetools to produce helical gears so they developed a straight-cut geared variation of the M3 box. Bradford Kendal I believe cast the hull and diff housings and turret. Only recently I found that the floor appears to be 3 x flat steel plates bolted into the hull casting, for each the driving, fighting and engine compartments - happy to hear more about this from anyone..?
I note that the French Somua S35 appears to have been a major earlier achievement in being cast as a 2 piece lower hull, 2 longitudinal plate floors, 2 piece upper hull and turret. While BK took the Sentinal's castings further by employing one main casting for the hull (except the diff housing and floors as noted).
Alex