- Joined
- Oct 21, 2004
- Location
- BFE Desert east of Cali
Been fighting this for ages, tried the usual engine angle, diff angle, 1pc, 2pc, compound angles, new yoke, new tailshaft bushing, fluid types, the whole lot, NEVER made any progress. Had a little of the same with the Celica box but not like the T5.
Fast forward to this weekend. Yard run yesterday, pulled a yoke from a 92 Grand Marquis with a V8. Same length yoke as the Mustang yoke, same OD, but with a balancer on it, and it still runs a 1310 joint. Installed onto my current 2pc driveshaft, went to install, minor issues. Had to pull the spacers I had shimming the trans up (from playing with angles), got enough clearance to slide the yoke in, not enough clearance to put the shims back, not a big deal in my case.
Took it out for a test drive. Accel is smoother than it's been, light cruise rattle is 80% gone, decel rattle rpm range dropped from anything over 2800 to only 2800-3800rpm, and the severity of the rattle dropped by 60-70%.
Don't get me wrong, this didn't fix ALL of the rattle, but I suspect if I went with a balancer the size of the one on the 4-cylinder Mustang's balancer it would potentially have fixed all of it, but for something about 1/4 the size it really made a huge difference.
One thing to be aware of while looking in the yards though...there are several different OD's on the yoke, also different spline counts. The Ford boxes run a 1.5" OD, 28 spline, but there's a variety of yokes in the yard.
Fast forward to this weekend. Yard run yesterday, pulled a yoke from a 92 Grand Marquis with a V8. Same length yoke as the Mustang yoke, same OD, but with a balancer on it, and it still runs a 1310 joint. Installed onto my current 2pc driveshaft, went to install, minor issues. Had to pull the spacers I had shimming the trans up (from playing with angles), got enough clearance to slide the yoke in, not enough clearance to put the shims back, not a big deal in my case.
Took it out for a test drive. Accel is smoother than it's been, light cruise rattle is 80% gone, decel rattle rpm range dropped from anything over 2800 to only 2800-3800rpm, and the severity of the rattle dropped by 60-70%.
Don't get me wrong, this didn't fix ALL of the rattle, but I suspect if I went with a balancer the size of the one on the 4-cylinder Mustang's balancer it would potentially have fixed all of it, but for something about 1/4 the size it really made a huge difference.
One thing to be aware of while looking in the yards though...there are several different OD's on the yoke, also different spline counts. The Ford boxes run a 1.5" OD, 28 spline, but there's a variety of yokes in the yard.