Quote:

---

Quote:

---

Quote:

---

Quote:

---

........... And pinion angle has nothing to do with it - it deals with driveshaft vibration and u-joint life and has nothing to do with wheel hop or traction.

---

Good news on the inexpensive fix. This statement is bad information and simply not true in all cases though. You can Google "pinion angle... wheel hop" and decide for yourself.

---

The Google search brings up the same yap in other discussion groups as it does here, with no mechanical theory to prove it. The means that you use to change pinion angle may change traction, not the angle change itself. A shim between the perch and the spring to change the angle lowers the car, changing instant center and traction. Changing the pinion angle with the lower link in a ladder bar changes wheelbase, instant center and traction. Apply "X" amount of torque to the pinion and it will try to rotate the ring gear with "X" amount of force - it doesn't matter if you apply that torque from the pinion at the 3, 6, 9, or 12 o'clock position - the pinion will apply the same amount of force. Feel free to use mechanical logic and not unproven quotes from other discussion groups to show how pinion angle can change traction, or create wheelhop.

---

Unproven quotes? Ladder bars? Ok, you win.

---

I covered leaf spring cars by mentioning the shim between the spring and perch. I also included ladder bars because your "Google search" turned up people setting pinion angle on ladder bar cars.

The "pinion angle - traction" debate has went on here at least the 5 years or so that I've been a member. There hasn't been anybody yet that has come up with mechanical logic on how changing only the pinion angle changes traction.