Questions about Stock

[Whalen3186]

Thanks for all the replys guys they have all been very helpful. There isn't alot of IHRA races that are very close so the crate motor idea probably isnt an option, even though I would love to run IHRA. Another question that I had and haven't been able to find any information on is what are the limitations on rear-ends? If a car came from the factory with a 10 bolt, can you put a 12 bolt underneath it or even a 9 inch?

[David Lee]

Originally Posted by fastbowtie

Thanks for all the replys guys they have all been very helpful. There isn't alot of IHRA races that are very close so the crate motor idea probably isnt an option, even though I would love to run IHRA. Another question that I had and haven't been able to find any information on is what are the limitations on rear-ends? If a car came from the factory with a 10 bolt, can you put a 12 bolt underneath it or even a 9 inch?

you have to stick with the rears that were made by that manufacturer, but truck rears are not allowed, so you could not put in a dana 44 or dana 60 even though GM did use some of those in thier trucks. You can switch it with an aftermarket 12 bolt such as the KTRE which will bolt right in. in SS you can use any rear made by anyone, except for some of the FAB 9 type rears.