Re: 63(may be '62) Build
 

GMC drums are NOT the same as Chevrolet. Way to many suppliers group these together as one of the same - which there are lots of difference from the turn- signal switch to the radiator support and more.

Re: 63(may be '62) Build
 

THIS IS TRUE, NOT THE Same i used jeep wagoneer drums drilled out the 6 holes to 1/2 and had to open up the center hole bigger with a hole saw, if your interested i can go into more detail how to do it, i did 2 trucks like this worked great

Re: 63(may be '62) Build
 

Yes, I'd be interested in the details. My studs are close to 9/16 (at the base - knurl)
Thanks,
Bob

Re: 63(may be '62) Build
 

For the rear brake drums I used Centric Part 123.66003 they have fins and fit over the backing plate and still fit the stock rims. Just drill out the stud holes to 9/16. No need to open up the center hole.

Re: 63(may be '62) Build
 

Thanks for the information! I'm currently using the drums I bought, and will inspect them after a few miles. If the shoes don't contact completely now I have the solution!
Bob

Re: 63(may be '62) Build
 

With the brakes just about done, I moved on to a simple project, replacing the fuel sender assembly. New part arrived, and here we go again... GMC is different, using a 3/8 line while the new sender was 5/16". Found a suitable fitting to modify (drilled it to the 5/16 line OD) and sweated it on to the pickup tube. The mod didn't take long, just frustrating that it had to be done.

Re: 63(may be '62) Build
 

I found the correct sender with the 3/8 line from tanks inc worked great

Re: 63(may be '62) Build
 

I would like to see these measurements as compared to the original drums, that centric part number crosses yo an71 k10 I have a 71 and I tried this drum and it still was different

Re: 63(may be '62) Build
 

Today, finally closed the book on Title... Had to use the Vermont process, got her registered and plated in Vermont. Then transferred it to Arkansas where she was issued a title. If you are without title and at a dead end with your DMV, the Vermont (dubbed America's DMV by Jaloplink) process works!

Re: 63(may be '62) Build
 

jolly's old site has several part numbers for rear brake drums for the spicer 44 rear axles on our gmc's. another alternative is the rear drums for a mid 70's j-10 jeep pick up. i found on another site the same discussion and found a 71-2 k5 blazer 4x4 rear drum 440-1200 napa that looks like it will fit as well. i hope this helps.