My buddy called me tonight looking for an id on a what he was told is a Super T-10 4 speed. He is planning on using it in his 59 Chevy 1/2 ton but he wants to make sure the guy that has it is not stuffing his boots. He is pretty new to any thing automotive as he just retired from the Army and has been out of touch for 30 years or so. He was not able to send me pictures but he did give me the number off the case, WB 1962. He says it is an aluminum case and has a 9 bolt curved bottom side cover which he removed and says it looks clean with no nasty gears showing. It is a fine spline on input and output shafts. I have tried to google with no luck. Any body have any input?
The Internet has all your answers all you need to do it Google Super T-10 4 speed.. All the numbers are there.
I did try google before I posting for help here. I hit on it again and finally found what I need. Glad you suggested I try again, thanks.
T-10- Design I (1A): Apr. 1957 June 1959: Cast Iron Case w/23/64 Bore, 3rd gear 1.37 No thrust flange for 2nd gear, Mainshaft 3rd gear has bushed hole, Reverse idler halves lock with 4 lugs T-10 Design II (1B): June 1959 Jan. 1961: Cast Iron Case w/ 1.5 Bore Mainshaft 3rd gear has a ground hole Reverse Idler halves are splined (27) T-10 Design III (1C): early 1961 1962: Aluminum Case Everything else is the same as above Except 1st gear bushing on Mainshaft was eliminated T-10 Design III (1D): early 1963 mid 63: Aluminum Case w/smaller bore than before Mainshaft 1st & 2nd gears are given wider driving surfaces Main drive gear re-designed Snap ring clip was changed to threaded nut T-10 Design IV (1E): late 1963 - early 1974: (1stDesign SUPER T-10) Aluminum Cases from GM & Cast Iron-After-Market Offered TWO new gear ratios: 2.64:1 & 2.43:1 Side-Loaded w/side-lever shift linkage Counter-shaft was enlarged to 1.00 inch Mainshaft redesigned redesigned for larger 1st gear Journal T-10 Design V (1D): mid 1974 - 1982 (2nd Design SUPER T-10) Same as above with MORE variations of a minor significance Main Shaft is 32-spline Gear Ratios are 2.43, 2.64, 2.88 or 3.42 https://www.jalopyjournal.com/forum/threads/super-t10-vs-t10-4-speed.106215/page-2 T10s were built from 1957 to 1965; Super T10s (Second design) were built from 1974 to 1983. Richmond ended up taking over from B/W. Early T10 are cast iron case (Like Saginaw 4sd), later are alloy case. http://www.pontiacpower.org/BW.htm http://www.drivetrain.com/parts_cat...erhaul_kits/borg_warner_t10_overhaul_kit.html WB 1962
To me, the dividing line between the T10 and Super T10 was when B-W finally upgraded the syncros to address their popping-out-of-gear issue. The early units used straight-cut syncro teeth/sliders and if worn would pop out of gear under deceleration. They kept this design at least through '67 if not later. The 'improved' version featured back-cut syncro teeth and sliders that 'locked' together under load, eliminating the problem.
The Jalopy Journal
