| This listing is for the front AC compressor seal for all factory compressor units from 74-79. It is the front seal only and doesn't include any other parts. It is not the seal that keeps the freon in the system. This seal is strictly for the factory AC compressors. For the units from 80-83 we need to get the old seal from you (or compressor itself) and spec it out. Then we should be able to order a seal for that model as well. If you don't know whether you have factory or aftermarket AC it's pretty easy to identify. Look at the AC lines going through the firewall. If they're rubber then it's an aftermarket AC system, if the lines are all metal going through the firewall then you have factory AC. Last update 12/11 | 
