I used a mini-quickchange in a road-racing car years back.
Upside,
any gear at any time in just minutes
spool or any diff made fit it
bulletproof
rebuildable without scrounging
floating axles
Downside
initial cost
long panhard not an option
http://www.1speedway.com/Quick_Changes.htm
Edited 1 time(s). Last edit at 12/11/2009 09:38AM by randyzimmer.