If you think there is 10 lbs to save in Tracy's PSRU, that's huge
  considering CG and all...If someone is willing to get the necessary
  components that can be whittled and you direct in the ares to be
  machined, I would be willing to do this for a very small sum to cover
  the tooling and possibly the fixture material, about $200.  NO other
  machine shop would touch something like this for under $1000
  .................

  thanks

  jeff

 Hi Paul;

 I had a few questions regarding Tracy's PSRU.
 IIRC, the original RD-1 used the Ford C6 gear set.  Do later versions
 use the Ford E40D gearset or something else?

 Are the prop shaft and flange still from a drag (or sprint) car rear
 axle and flange - any idea which companies produce off the shelf parts
 like this?

 Also, do you know if the female splined flange in the damper plate (see
 attached pic) is based off stock transmission parts?

 Thanks
 Cary


 Yes the gear set are from the latter versions of the C6 called E4OD.

 Yes on the prop shaft and flange. Supposedly a AA Fuel dragster rear axle.

 Yes the damper plate is based on stock parts. I have not figured
 out what make of transmission they come from yet.

 Sluson Transmission parts has a catalog showing a lot of
 auto transmission parts.

 http://www.slauson.com/


 Paul Lamar

Paul,
The gear set is the center gear set out of the ford E4OD or 4R100 trans. you
must specify the diesel version to get the right gears. all gas engine
versions (except the Lightning) have aluminum 4 pinion carriers.
Larry

Thanks Larry. Good info. I'll save this message in the correct place.

Paul Lamar