Quote:
Originally Posted by my123ca
Search ebay for 'GM a/c seal washer kit'
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Did you guys read post #9?
Lots of PN's you can search on ebay or auto parts stores.
But, nobody can answer without photos of the R4 compressor in question because the ports do differ. There are several threads here (search) w/ photos showing problems sealing with some R4 models that people got as rebuilts for their M-B but had ports for later GM which have different depths. Personally, I would like one w/ O-ring grooves, as some M-B had. Indeed, I put a rear head w/ "GM Pad" on my Sanden that matched the M-B hoses and uses O-rings.