elliotaw
New Member
- Messages
- 221
- Location
- Melbourne, Australia
I am finally getting close to getting my 1uz / ford capri conversion to dyno stage. I'm working out how to do the tailshaft at the moment. I've spoken to a number of tailshaft specialists last week and been recommended to do the following :-
use the original rubber doughnut assembly directly behind the a341e transmission, running a 2 1/4 tube to a centre bearing from a holden commodore which has a slip yoke incorporated into it, then 2 1/4 tube back to my 9" axle.
I have already sourced a cressida slip yoke some time ago as I originally intended on fitting that directly behind the transmission then either running a one or 2 peice shaft.
Now, when the original drive yoke is removed from the rear of the transmission, there is only approximately 30mm of splined shaft for the slip yoke to slide on. Of this 30mm, only about 10mm is either in contact with or just forward of the rear transmission oil seal. I havent done the maths to work out the curve angles atc, but that just sounds like not enough movement to me.
I know some of you guys have done this conversion so it must work...it just doesnt look good in my own mind.
The tailshaft guy I am going to use seams quite keen to use the original rubber doughnut...im guessing to make the job simple. I'm worried though that the rubber will lose a minute percentage of performance when compared to a solid setup. Using the doughnut also means that the front section of the tailshaft MUST sit perfectly inline with the transmission output shaft. This would make my life hard to some extent as the centre bearing position then becomes critical.
My question is this :-
If the cressida slip yoke is fitted up front(butted up against the transmission rear bearing), but not actually used to slip.... i.e... run a 2 piece shaft with a working slip yoke on the rear side of the centre bearing.... does anyone have any comments on whether that would work or cause any problems ?
Elliot
use the original rubber doughnut assembly directly behind the a341e transmission, running a 2 1/4 tube to a centre bearing from a holden commodore which has a slip yoke incorporated into it, then 2 1/4 tube back to my 9" axle.
I have already sourced a cressida slip yoke some time ago as I originally intended on fitting that directly behind the transmission then either running a one or 2 peice shaft.
Now, when the original drive yoke is removed from the rear of the transmission, there is only approximately 30mm of splined shaft for the slip yoke to slide on. Of this 30mm, only about 10mm is either in contact with or just forward of the rear transmission oil seal. I havent done the maths to work out the curve angles atc, but that just sounds like not enough movement to me.
I know some of you guys have done this conversion so it must work...it just doesnt look good in my own mind.
The tailshaft guy I am going to use seams quite keen to use the original rubber doughnut...im guessing to make the job simple. I'm worried though that the rubber will lose a minute percentage of performance when compared to a solid setup. Using the doughnut also means that the front section of the tailshaft MUST sit perfectly inline with the transmission output shaft. This would make my life hard to some extent as the centre bearing position then becomes critical.
My question is this :-
If the cressida slip yoke is fitted up front(butted up against the transmission rear bearing), but not actually used to slip.... i.e... run a 2 piece shaft with a working slip yoke on the rear side of the centre bearing.... does anyone have any comments on whether that would work or cause any problems ?
Elliot
