Houle #382
Well-Known Member
Just wondering if anyone knows what the pinion spline is on the 68 /69 8 3/4 489 case would be. I want to put 3:39's in but they list two different splines, a 10 spline and a 29 spline
Depends on the yoke you currently have? You can run either just need the correct yokeJust wondering if anyone knows what the pinion spline is on the 68 /69 8 3/4 489 case would be. I want to put 3:39's in but they list two different splines, a 10 spline and a 29 spline
2.76, 2.93, 3.23, 3.31, 3.55, 3.73, 3.91, 4.10, 4.56, 4.89, 5.17, 5.57.
I don't see a 3.39
The race gears (no longer available?) had some different ratios
29 spline is stronger but you can break anything
Gears are harder to find for the Small center section
472 and 489 are easier
us gear makes a 4.86, 5.13
Check Richmond gear 5:38
you should be able to find a 3.23 or 3.31 all together- they were very popular
Just wondering if anyone knows what the pinion spline is on the 68 /69 8 3/4 489 case would be. I want to put 3:39's in but they list two different splines, a 10 spline and a 29 spline
Just wondering if anyone knows what the pinion spline is on the 68 /69 8 3/4 489 case would be. I want to put 3:39's in but they list two different splines, a 10 spline and a 29 spline