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Pinion Spline Difference Update

Started by VCODE, March 24, 2023, 10:49:41 AM

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VCODE

March 24, 2023, 10:49:41 AM Last Edit: March 24, 2023, 11:54:38 AM by VCODE
1970 Challenger TA with 3:91 Gears.
Which is correct for a 489 case pinion spline. A 10 spline pinion or 29 spline pinion. Did 1970 use both splines. Which application for which car.
Something not adding up. Ring Gear # 2070225   3.91-1   MS291  8-4-69
                                      Pinion       # 2881460    3.91     3-6-69   10 Spline   7290 Yoke
   
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