Do you mean the stock seat tracks? NO- the seat frames are not the same size/height as the stock ones- it would take some serious hacking to use the stock tracks.
Do you mean the stock seat floor pan brackets, and bolt up procar brackets to it? Yes- the bolt pattern for their chevelle brackets are exactly the same as stock- if you have stock buckets, you will not have to drill at all.
OR...If you want to save some $$, or if you want a custom angle for your seats, you can just get some good angle brackets at a hardware store and to it yourself- that is what BB_Mike did with his procar seats.
The seats come with generic "tracks" with them- these have three mounting holes on each "foot" pointing down. Its fairly easy to make your own brackets. I will say however, that the brackets they sell are good heavy duty pieces- and they are specifically made for your type of car and really do line up good.
You might do a search here on BB_MIKE and look at his site and pics of his install to see the custom made brackets he used. BTW- he has the Procar "elite" seats.
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Ben Rambow
NECOA #022
1970 El Camino SS
My old 1969 El Camino
[This message has been edited by AHSOM70 (edited 02-04-2003).]