I'm assuming this is for the Spicer rear end. That is what I have in my '56. I'm interested to know how this comes out.
No, this is issue is with a Dana 44 out of 64-66 GMC pickup with leaf springs.
Spicer and Dana are the same company, and their differentials were produced under both names, but with the same number designation. For example, a Dana 44 and a Spicer 44 are, other than the name stamped on the cover, the same differential.
