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Original Message
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| don't need a photo..... |
| By hawkrod - 05/10/2004 9:00:07 PM; IP 205.188.117.11 |
| you got the right one. there are five different balancers for a 428 depending on year and model. three of those are identical to a 390 as a 428 only has extra weight on the flywheel not the balancer. the first and most common balancer is the 66/7 thin one you have. 66/7 PI 428's had a very large and heavy balancer that is probably the rarest of all balancers. 68-70 standard 428, 428CJ, and 428PI's used either a C8AE-A1 or C8AE-A2 balancer (the CJ should be the A2 but people seem to be willing to accept either!). this is the normal wider heavier balancer with a bolt on pulley. and finally there is the 69/70 428 SCJ balancer which larger than the standard part but also uses a bolt on pulley. the reality is most 428's should have the same balancer as a 390. now on to the next issue, how do you know it had a 390 flywheel? some 428 flywheels look identical to a 390 unit but have a small weight spotwelded on. not all 428's had the wagon wheel style and for that matter there is even a 3 piece unit used on many 66's so are you really sure you didn't have a correct part? note also that the current replacement flywheels are identical to the 390 part except for the weight so if he put a new one on it may have been correct but you may have been looking for something else. hawkrod |
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