i was changing the shoes on my truck and noticed far inside the drum is a pretty nice little groove carved in it and i was just wondering if i need new drums or will it be ok i dont need much stopping power. the groove is very small but a little deep should i be ok? i never stomp on my brakes im pretty easy on them.
If there is a groove in the surface that the shoes touch, I would turn/replace the drums. Are you going to be okay for a while, maybe yes, maybe no. You can't plan for panic stops caused by the other guy.
It's most always embossed on the outside of the drum the max allowable diameter after turning (determined with a drum caliper). If it's just one narrow groove I wouldn't worry about it.
__________________
Heavy truck and diesel mechanic (thankfully retired after 30+ yrs)
'91 F-250 SC 4X4, 5spd. ATS Turbo, 3:55 diff.
Have to look again, I don't remember seeing anything like that. I did have to replace D/S drum and wheel cylinder when I bought the truck. But that was 4+ years and thousands of cars ago.
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1994 F-350 7.3 IDI Turbo, crew cab, E4OD,4:10 L/S, LB, Dually Photos
ATS Turbo upgrades: 3" DP with 3" exhaust Magnaflow XL muffler: Pictures Here
2012 Copper Canyon 273 FWRET w/2 slides, Air Lift 5000 bags
Pillar pod: Autometer C2 Series gauges: pyro,trans, boost, water, oil pressure
Hypermax Cowl induction, K&N air filter, flex-a-lite 26K trans cooler with fan,Tekonsha prodigy
Train Horns: Pictures here
Have to look again, I don't remember seeing anything like that. I did have to replace D/S drum and wheel cylinder when I bought the truck. But that was 4+ years and thousands of cars ago.
Seems to me I was told it is a federal law. At the last shop I worked at and one years previous we had a complete brake setup------ brake drum lathe, shoe arching machine, and rivet remover and rivet press for everything from air brake drums/shoes down to pickups. Everything always had the max drum I.D. stamped on the drums. With that said, other than air brakes (no bleeding, etc), I always hated doing brake jobs.
__________________
Heavy truck and diesel mechanic (thankfully retired after 30+ yrs)
'91 F-250 SC 4X4, 5spd. ATS Turbo, 3:55 diff.
Max I.D. And min O.D. (Rotors) have been stamped in for years like you say. I just don't ever remember seeing any kind of groove machined in the drums.
__________________
1994 F-350 7.3 IDI Turbo, crew cab, E4OD,4:10 L/S, LB, Dually Photos
ATS Turbo upgrades: 3" DP with 3" exhaust Magnaflow XL muffler: Pictures Here
2012 Copper Canyon 273 FWRET w/2 slides, Air Lift 5000 bags
Pillar pod: Autometer C2 Series gauges: pyro,trans, boost, water, oil pressure
Hypermax Cowl induction, K&N air filter, flex-a-lite 26K trans cooler with fan,Tekonsha prodigy
Train Horns: Pictures here
Max I.D. And min O.D. (Rotors) have been stamped in for years like you say. I just don't ever remember seeing any kind of groove machined in the drums.
Wow, total misunderstanding, and I thought we shared the same brain (scary as it is)! Sorry, thought you were referring to the max I.D. stamping.
__________________
Heavy truck and diesel mechanic (thankfully retired after 30+ yrs)
'91 F-250 SC 4X4, 5spd. ATS Turbo, 3:55 diff.
...I thought we were talking about the groove in the first post. We do share the same brain only this time the right half didn't know what the left half was thinking
__________________
1994 F-350 7.3 IDI Turbo, crew cab, E4OD,4:10 L/S, LB, Dually Photos
ATS Turbo upgrades: 3" DP with 3" exhaust Magnaflow XL muffler: Pictures Here
2012 Copper Canyon 273 FWRET w/2 slides, Air Lift 5000 bags
Pillar pod: Autometer C2 Series gauges: pyro,trans, boost, water, oil pressure
Hypermax Cowl induction, K&N air filter, flex-a-lite 26K trans cooler with fan,Tekonsha prodigy
Train Horns: Pictures here
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Sorry, thought you were referring to the max I.D. stamping.
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