T-10 overdrive?

Jan 03, 2008 8 Replies

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anyone have any more knowledge about this? Gears are turning (in my head...)



nate


Looks like you will still need your old O/D unit guts to scavenge the parts to put this on a T-10. Compared to a Gear Vendors $2500 add-on O/D unit, this might be a neat $1500 alternative A T-5 conversion would be a whole lot easier, and more up to date. Jeff

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Take note that this unit uses the R-11 overdrive, not the more common (and less robust) R-10 that is used with the T-86 transmission used in most Studes.

I figured as much, but I'm a sucker for old school stuff.

nate

DEEPNHOCK wrote:

I ASSume that the R-10 is the unit used on the T-85? That would make sense seeing as the T-10 was based heavily on the T-85 design.

nate

Nope, R-10 is the light-duty 3 planet OD used on T86 and T96 transmissions.

R-11 is the heavy duty 4 planet OD unit, as used on T85s.

Gord Richmond

Ugh, that's what I meant, but not what I asked. Brain/finger interface not so good today.

thanks,

nate

The T-85 was a widely used HD 3 speed, often equipped with OD. It was the Ford "Interceptor" transmission from '57 to '62. The R-11 is a 28 percent OD. The R-10 is 30 percent. Stude used the R-11 in Golden Hawks, with the T-85. The '56 & '57 had two piece drive shafts. The '58 was one piece. The Lincoln unit, mentioned in the ad, is for a one piece drive shaft, and is pretty short. Mike M.

I asked the seller about the special transmission output shaft; that runs from the four speed gear box, through the adaptor, to the OD unit. He has answered in the Q&A, at the bottom of the ad; and offers to send more pictures, and the magazine article about the conversion. The rear end of the shaft, that is with the adaptors, has 10 splines, and grooves for circlips. I gather that's for the OD sun gear. When we talked, I was assuming the front end of the shaft was four speed, and didn't verify that. The pictures could be compared to the part's book drawings to make sure. Mike M.

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