Identities of Two Used Vacuum Advances

[Larry M.]

I have two used vac advances. One is stamped 437 15, and the other is 448 15.

I believe them to be stock 1972 LT-1 units. Am I correct?

Thanks for any info.

Larry

[Joe L.]

Re: Identities of Two Used Vacuum Advances

I have two used vac advances. One is stamped 437 15, and the other is 448 15.

I believe them to be stock 1972 LT-1 units. Am I correct?

Thanks for any info.

Larry

Larry------


The 1973437 was used for 1972 LT-1 distributors. The 1973448 was not used for that application.

[Larry M.]

Re: Identities of Two Used Vacuum Advances

Joe,

Thanks; appreciate your info.

Knowing the entire part number, I see from the GMPARTSWIKI the applications for the 448.

Larry