Quote:
Originally Posted by mookiex4
It has the 305 V6 and it is a canister type filter, but there are two types and they look different. The computer system in order to get the correct canister filter asks if the VIN series it A/B for one style or C/D for the other style. They are different enough that I don't want to get the correct one. I was just wondering if I go off of the DD that is next to the GMC TRUCK stamp or the B att he end of the VIN number. If I look at the wrong letter I can potentially get the wrong style canister oil filter. I was just wondering how to figure out How I can tell if it is VIN Series A, B, C or D.
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the difference is the size of the filter cartridge. just take your old one off and the size will give it to you. there will more than likely will be a part # right on it
eg
fram # ch33apl 9.05"tall id 1.44" od 4.45"
fram # ch106pl 6.25" tall id 1.28" od 3.69"
now if that partsperson had a clue they could have told you that. I just looked it up.the other possibility in 50 years that eng could have been changed. again just pull the old one off to make sure what you have first
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