Dragging rear brakes on one side - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**MikeB** · 04-25-2020, 03:39 PM

Swapped the drums from left to right and the problem followed the drum. Only thing I can think of is the drum gets out of round due to the heat generated by driving and braking. When at ambient temperature, it slides off and on the shoes easily, just like the other one. No sign of dragging on the drum or shoes.

Interesting that the "bad" drum had a lot more surface rust than the other one, even though both were the same store brand installed at the same time. Must have been from a different batch or a different Chinese communist supplier.

Just ordered a Raybestos drum from Rock Auto instead of the store brand drums at my local auto parts stores. I've always had good luck with Raybestos and Wagner, no matter where they are made.

04-25-2020, 03:39 PM	#6
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 4,038	Re: Dragging rear brakes on one side Swapped the drums from left to right and the problem followed the drum. Only thing I can think of is the drum gets out of round due to the heat generated by driving and braking. When at ambient temperature, it slides off and on the shoes easily, just like the other one. No sign of dragging on the drum or shoes. Interesting that the "bad" drum had a lot more surface rust than the other one, even though both were the same store brand installed at the same time. Must have been from a different batch or a different Chinese communist supplier. Just ordered a Raybestos drum from Rock Auto instead of the store brand drums at my local auto parts stores. I've always had good luck with Raybestos and Wagner, no matter where they are made. __________________ Mike 1969 Custom/10 LWB -- owned for 37 years. 350/TH350, 3.08 posi, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. Hedman stainless headers. Old Air installation in progress. 1982 Custom Deluxe 10 SWB -- converted from 250-six to roller cam 350 w/ Vortec heads -- sold 1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it! 1969 C10 (not the current one) which I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 26 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!



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