means no tailshaft place for the rubber mount. They had motor mounts at the front of the engine and two similar mounts at the bellhousing. Four point mounting vs the three we see after that time.
The trans was used for a number of years, but later ones had a mount pad on the tailshaft. On '55-7 Chevies, the rear mounts were on the belllhousing and transmission just hung out in the air with no supports of its own.
Same lenght as a T10 -Munice- Saganaw 4 speed. 58-64 was simular but tail shaft was shorter and had a mount pad.
Honestly, not that much. Power pack 283s used to eat them during rigorous use. The '66 and newer Saginaw three speeds have a more rugged ge****t, and a synchro low gear to boot, and are both plentiful and cheap (sometimes even free).
Their general weakness can be partly improved apparently by eliminating endplay in gears and adjusting endplay at 2nd/syncro area. Don't remember the tech, there is some sort of special select fit washer thereabouts. Somewhere I have a small '50's article on this...exactly same issues as early Ford box. Even stock cl*** cars used to eat these things...
Now that you mention it, I remember an article in a late '60s HRM concerning modifying them to live longer in drag racing cl***es that required the stock transmission.
Not much. I had a a warm 58 pontiac in my 55 pu and it had enough tourqe to break it without popping the the clutch. Rebuilt it 3 times befoe I got a t 10.
The Jalopy Journal
