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#1 |
Registered User
Join Date: Nov 2005
Location: Round Rock, TX
Posts: 348
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Transmission brake question
Soooo.... my transmission brake is super loose and before I get the truck on the road (so far I've only moved it a few feet in my driveway), I'd like to know more about the transmission brake this truck has.
Such as: when is it on? Is it engaged when it's forward toward the dash, or back to the seat? It doesn't seem to be working in either position, but if I know which way it should work, it's a step toward the repair.
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Michael - 1962 C20 LB stepside (project thread) - sold - 1963 Chevy C10 LB stepside (donor) - 1963 Chevy C10 LB Custom flatbed (project thread) - sold - 1979 K20 LB fleetside (project thread) Favorite exchange on the board so far: ol_Curt: "Jason, do you have power steering?" jason65: "No, but I lift weights." |
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#2 |
meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Transmission brake question
Do you mean the parking brake? When I hear transmission brake, I think of the the trans brake for racing that puts you in between gears to launch.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING ![]() |
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#3 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: Transmission brake question
Yes I believe the OP is talking about the parking brake. The C30, and bigger as well as some C20's had the parking/emergency brake mounted on the rear of the SM420 trans, with a lever up thru the trans hump to the right of the shifter.
When the lever is pulled back towards the seat, the parking brake should be engaged. Then squeeze the lever and push it forward to release.
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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#4 | |
Registered User
Join Date: Aug 2003
Location: tool box
Posts: 3,115
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![]() Quote:
I think he means this style, was used on the 3/4 ton(maybe) trucks and larger... I don't recall if it was standard or some option... : http://67-72chevytrucks.com/vboard/s...d.php?t=622541 but I could be wrong. ---- LuckyLightning, go up top in the forum here to the Google search box, select 67-72chevytrucks.com and search for : transmission parking brake sort through the threads... some of the replies are for other body styles, but you will find some ones related to 60-66 styles, with good information. -W Last edited by Woogeroo; 09-07-2014 at 02:14 AM. |
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#5 |
Registered User
Join Date: Nov 2005
Location: Round Rock, TX
Posts: 348
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Re: Transmission brake question
Captainfab is exactly right.
Woogeroo, I did an advanced search prior to posting (on 60-66 thread) but didn't see any info on the correct "engaged" position. The link you provided is helpful. I messed with the brake some more and looked at the brake mechanism itself. Should the tension gradually set in, like a rear drum park brake, or does it "clasp" in place? Right now it seems to clasp-in-place, but it doesn't return with a snap when disengaging. Also, in both positions, the handle is wiggly. That isn't normal, is it?
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Michael - 1962 C20 LB stepside (project thread) - sold - 1963 Chevy C10 LB stepside (donor) - 1963 Chevy C10 LB Custom flatbed (project thread) - sold - 1979 K20 LB fleetside (project thread) Favorite exchange on the board so far: ol_Curt: "Jason, do you have power steering?" jason65: "No, but I lift weights." |
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#6 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: Transmission brake question
The trans mounted parking brake should engage gradually just as the parking brake at the drum on the differential. The harder you pull on the lever, the tighter the brake grips. To my knowledge the lever does not 'snap' back, it needs to be physically moved. Then again, I have not had the opportunity to use one that was fairly new.
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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