Technical Just when I thought I have seen everything, a vintage quickchange transmission

Morning all,
Thought I would share this. I feel like I have a pretty good overall knowledge of automotive stuff, old, racing, people and such and every once in a while I stumble across something I have never seen or heard of before. Behold a vintage Chevy 3 speed transmission with a quickchange unit on the back, pretty cool. I put the link in here and added pictures for the future.

https://www.facebook.com/marketplac...h&referral_code=null&referral_story_type=post

Cliff Ramsdell

Text from the add,
Winters Performance quick-change mated to a 1965/66 GM Saginaw 3-speed transmission. Winters quick-change 10-spline base PN 6474. Winters 10-spline gear set #29, 24/15. Provides either .625 reduction or 1.6 increase in gear ratio. Saginaw 3-speed, PN 3868986. Date code C286. Gear ratios: 1st 2.85, 2nd 1.68, 3rd 1.0. $800.00 Also have a vintage bell housing/scatter shield for another $150.00

 

I would think that would make a lot of noise!

But it is kool!


Bones

 

I’ve seen one here maybe once? Really neat piece of equipment thanks for sharing! Good to see your name pop up

 

Back in the day would have been a sneaky way to fudge the rules where a quick change wasn't permissible, at least less obvious.

 

Thanks for posting that, never saw one before.

 

Cool, but wouldn't exactly be quick to change!

Chris

 

Love oddball stuff like that, thanks for posting.

 

As I recall reading way back, it was intended to lower unsprung weight. And the same 10 spline qc gears as used in the Winters or Frankland qc rears fit, so there's a wide range of ratios available. Also I seem to remember that they recommended the drive shaft have a slip joint in it that had enough travel to allow the cover to be removed without dropping the driveshaft.

 

Ive seen alot of things but that's a first for me. I want it!

 

Used to see them advertised in the old Stock Car magazines.

 

Thanks Tim. It’s very busy here and I don’t always have something to add but I thought this was pretty damn neat.

Cliff Ramsdell

 

Several companies made them I have an add (VTH? was another company that built them) I will have to find it; they were built for oval track racing classes that did not allow quick change rears.

The also were an advantage in less unsprung weight.

 

Would love to toy with one, no need to alter the rear crossmember or spring for clearance only drive shaft alteration as I see it....less impressive rear view but precisely as intended to the competition.

 

Thanks for sharing.
I have not seen one before. Good to see you posting.

thanks,

jim

 

ive seen a lot quick changed diapers.... morning humor......he he he

 

Ovunderdrive?

 

Yes, they were a thing. We made a variation of our own. The one shown uses two sets of QC gears so that the driveshaft still turns the counterclockwise (from the driver's seat).
Ours just used one set and we flipped the rear axle.
By using magnesium castings, aluminum axle tubes, gun drilled axles etc. we cut 125 lbs of unsprung weight. Admittedly, the old QC was not on the Jenny Craig diet.
The car was fast, and totally awesome in thee handling department, but changing the gears was a headache.
One season and back to a Quickchange. about a 15 lb. gain in unsprung weight.

I still have the pieces if anyone is interested.