69 Camaro Ridetech 4 link pinion angle help

[oakhill510]

69 Camaro
5.3
t56
ford 9”
Ridetech 4 link


I need help with finding my pinion angle. I don’t think setting my pinion to 3 degree like Ridetech said, is going to do.

All 4 wheels are on the ground, using floor jacks to hold it at the ride height I want. I am doing the adding/subtracting way of setting my pinion angle. With that being said, what should my pinion angle be with the following information:

slip yoke angle -4.5
drive shaft +.8
Pinion -4.6

On the Tremec app, I inputed the above angles into the app and got the result:

Angle 1 - 4.4 (Red)
angle 2 - 3.6 (red)
operating angle - .8 (green)

Do I have to worry about the angles in the reds?

[130fe]

What engine/trans mount are you using? I have the Holley stuff and it gave me a 3.0 angle?

[oakhill510]

Motor side mount are eBay ICT and the frame mounts, I don’t know the brand. On the tranny crossmember, it’s a G-Force brand.


On my post, I had did my math wrong. I was adding instead of subtracting my slip yoke angle from the driveshaft angle.


New angles:
Slip yoke - 4.5 degree
DS + .8 degree
Pinion -4.6 degree


operation 1 — -4.5 - .8 = -5.3. (Slip yoke to DS)


Operation 2 — -4.6 - .8 = -5.4 (pinion to DS)


I believe I need to shim my tranny to try to get it to -3.5 degree and bring my pinion to 3 degree or under. For sure, I need to bring my DS from + to -


If I can achieve these angles
Slip yoke -3.5
DS -1 (or under)
Pinion -3 (or under)


I’m be in the greens accordingly to tremec app.



178147

[cpd004]

Did you get this sorted out?