Step-down transmission

[firestorm777]

I recently found on eBay a person advertising a step-down transmission. I read somewhere that many of the Grand Prix cars have that kind of transmission these days. how do they work? Is it centripital, or is it controlled in the same manner as an automatic?

[DaveKillens]

This link describes F1 gearboxes.
http://www.f1technical.net/article66.html

I don't think the transmission for sale on eBay is remotely connected to an F1 transmission. They are incredibly expensive, rare, and unobtainable. They need complex electonics and hydraulics to run them, and they operate in a manner that really isn't applicable to a transmission used on a "normal" road vehicle. Additionally, many parts inside one of the F1 transmissions are designed for just a few hours, and then need to be replaced.

The only step down transmissions I know of are industrial and agricultural. Definitely, without any doubt, nothing to do with F1
http://home.att.net/~jmsmith45/sherman.htm

[BrentK7]

doesn't a step down machanism just take and change the gear ratio? basically like a rear differential. I could be wrong.

[Guest]

check out this link:

http://www.zeroshift.com/applications/index.htm