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Old 04-28-2010, 10:41 PM   #1
southern gator
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SM465 parking brake???

what year GMCs and models did the SM465 4speed transmissions come with the drum parking park bolted to them? trying to find the output seal for that flange? thanks
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Old 04-29-2010, 07:24 AM   #2
Turbo85GMC
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Re: SM465 parking brake???

I've got a SM465 in my '85, it's a 2wd. The parking brakes are the rear drums.

Dunno if that helps, but at least you can cross one model/year/combination off the list.
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Old 04-29-2010, 07:47 AM   #3
southern gator
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Re: SM465 parking brake???

no, ive got (2) SM465s with the fixed yoke for 2wd trucks, but i also got a SM465 with the driveline ebrake drum bolted to the SM465, some years came with that opt. trying to figure out what model/year so i can get the right output seal.
thanks
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Old 04-30-2010, 01:59 PM   #4
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Re: SM465 parking brake???

never seen or heard of one IDK man
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Old 04-30-2010, 04:19 PM   #5
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Re: SM465 parking brake???

i didnt think the driveline brake came as an option. thats usualy an after market add on. (great for rock crawlers )
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Old 04-30-2010, 06:20 PM   #6
83GMCK2500
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Re: SM465 parking brake???

I wouldn't be surprised if that was an option or mod from a C50+. I will dig around hte EPC tonight if I remember, see if I can find anything.
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Old 04-30-2010, 11:18 PM   #7
sierra4x4
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Re: SM465 parking brake???

I saw a 72 C30 with the brake on the trans. All the ones from 73+ that I've seen don't have it.
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Old 04-30-2010, 11:28 PM   #8
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Re: SM465 parking brake???

yeah.. i'd keep my search to big big trucks... all of the trans brakes that come though work are on the bigger diesels... though... they're later model with autos.. but still.
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Old 04-30-2010, 11:36 PM   #9
1985-GMC
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Re: SM465 parking brake???

Weren't those on the SM420's, I know they were on older trucks on the C50's and bigger. Ive never seen one on a SM465, I may be wrong though.
Can we see a picture of the one with the brake. Thanks
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Old 06-06-2013, 03:32 PM   #10
Masstowingllc
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Re: SM465 parking brake???

It should be same figure 8 gasket
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Old 06-06-2013, 03:33 PM   #11
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Re: SM465 parking brake???

I have one on my ramp truck it's. 1985 Chevy c6000 if that helps
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Old 11-01-2013, 09:20 AM   #12
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Re: SM465 parking brake???

Www.novak-adapt.com has them
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Old 11-01-2013, 09:57 AM   #13
Keith Seymore
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Re: SM465 parking brake???

Quote:
Originally Posted by mongoose View Post
yeah.. i'd keep my search to big big trucks... all of the trans brakes that come though work are on the bigger diesels... though... they're later model with autos.. but still.
Agree. Prop mounted parking brake would be Medium Duty, P truck, etc.

K
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