Recently I spoke with a 63 J-65 brake owner with a seven leaf spring. There appears to be a correlation between metallic brakes and the Z06 heavy duty rear spring. For the 63 model year the hobby has documented heavy duty suspensions were only available with the Z06 option. However, there are a number of "original" 63 J-65 cars which also have the same Z06 spring. Possible answers:
1. Chevrolet assembly was experiencing supply problems and released the seven leaf spring as an acceptable substitute for a number of vehicles? St. Louis resident engineering, in conjunction with central engineering would have issued a "Deviation Request" substituting the seven leaf spring for a "number" of vehicles.
2. Due to the appearance similarities between metallic brakes and Z06's the operator installed the seven leaf spring in error?
3. Early in the vehicles life it was returned to the dealership with a "sagging" spring and the performance minded owner had it replaced with a "heavy duty spring"? Remember heavier is better mentality!!!!!!
I'm conducting an informal survey to determine how many 63 J-65 cars were assembled with seven leaf springs. In addition, determine if these cars were assembled during a particular time period or vin# range. Any information would greatly be appreciated. Thank You
1. Chevrolet assembly was experiencing supply problems and released the seven leaf spring as an acceptable substitute for a number of vehicles? St. Louis resident engineering, in conjunction with central engineering would have issued a "Deviation Request" substituting the seven leaf spring for a "number" of vehicles.
2. Due to the appearance similarities between metallic brakes and Z06's the operator installed the seven leaf spring in error?
3. Early in the vehicles life it was returned to the dealership with a "sagging" spring and the performance minded owner had it replaced with a "heavy duty spring"? Remember heavier is better mentality!!!!!!
I'm conducting an informal survey to determine how many 63 J-65 cars were assembled with seven leaf springs. In addition, determine if these cars were assembled during a particular time period or vin# range. Any information would greatly be appreciated. Thank You
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