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Username Post: Parking brake adjustment        (Topic#359783)
bowtie44s 
Valued Contributor
Posts: 4271
bowtie44s
Age: 37
Loc: wv
Reg: 08-29-12
02-11-20 01:25 PM - Post#2786325    

Does anyone know what the manual says about adjusting the parking brake? There doesn't appear to be any adjustment for the right side.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
Shepherd 
Frequent Contributor
Posts: 1953

Loc: Lake George, NY
Reg: 11-11-15
02-11-20 06:13 PM - Post#2786336    
    In response to bowtie44s

Are you talking about the cable itself or the internal adjustment if 4 wh disc?



 
bowtie44s 
Valued Contributor
Posts: 4271
bowtie44s
Age: 37
Loc: wv
Reg: 08-29-12
02-11-20 07:08 PM - Post#2786337    
    In response to Shepherd

The cable. The equalizer will tighten the right side but I don't see a way to tighten the left side.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
scrambldcj8 
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Posts: 2537
scrambldcj8
Loc: Belchertown, MA
Reg: 04-06-03
02-12-20 02:52 PM - Post#2786389    
    In response to bowtie44s

Did you mix up your sides? First post stated adjustments to right side...2nd post stated adjustment for left side.



 
bowtie44s 
Valued Contributor
Posts: 4271
bowtie44s
Age: 37
Loc: wv
Reg: 08-29-12
02-12-20 08:10 PM - Post#2786397    
    In response to scrambldcj8

Yeah, I said them backwards in my first post. The right side screws into the equalizer. You can adjust it. The left side hooks to the front cable that runs through the floor and to the pedal. I don't see an adjustment anywhere.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
scrambldcj8 
Silver Supporting Member
Posts: 2537
scrambldcj8
Loc: Belchertown, MA
Reg: 04-06-03
02-13-20 06:39 PM - Post#2786450    
    In response to bowtie44s

My 1994 SUV K Blazer has an adjuster under the drivers door, along outside frame rail, that can take up slack. Your Pickup?



 
bowtie44s 
Valued Contributor
Posts: 4271
bowtie44s
Age: 37
Loc: wv
Reg: 08-29-12
02-14-20 07:34 AM - Post#2786478    
    In response to scrambldcj8

Yeah mine is an 88 truck. There is no adjustment there on mine.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
Sabino 
Member
Posts: 119

Reg: 07-16-05
02-15-20 07:54 AM - Post#2786570    
    In response to bowtie44s

I don’t know anything about your year but, in general - if the system is a cable from the parking brake pedal to one side and the other side is a clip over that cable to the other side then the single adjustment on that side tightens both as the clip can slide on the “main” cable. My 68 Camaro has this arrangement. Forgive me if you already know this and that’s not your problem here.

65 Belair 350
68 Camaro 327
93 Suburban 5.7L TBI


 
bowtie44s 
Valued Contributor
Posts: 4271
bowtie44s
Age: 37
Loc: wv
Reg: 08-29-12
02-15-20 06:23 PM - Post#2786610    
    In response to Sabino

  • Sabino Said:
if the system is a cable from the parking brake pedal to one side and the other side is a clip over that cable to the other side then the single adjustment on that side tightens both as the clip can slide on the “main” cable. My 68 Camaro has this arrangement. Forgive me if you already know this and that’s not your problem here.



I'm not sure I'm following you. The equalizer over the left cable and locks in place. It doesn't move. The right side threads into the equalizer and there is about 4 inches of adjustment there. I don't see how that will have any affect on the left side as it locks over the outer "sheath" and has nothing to do with the inner cable.

I'm sure you're right, I'm just not understanding it.


Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
scrambldcj8 
Silver Supporting Member
Posts: 2537
scrambldcj8
Loc: Belchertown, MA
Reg: 04-06-03
02-16-20 06:08 AM - Post#2786627    
    In response to bowtie44s

Does #9 adjust?

https://www.lmctruck.com/1988-98-chevy-gmc/bra kes/...



 
Sabino 
Member
Posts: 119

Reg: 07-16-05
02-16-20 08:04 AM - Post#2786634    
    In response to bowtie44s

I didn’t describe it well. The cables from both parking brakes form a “loop” and “hook” over a bracket on the cable from the parking brake pedal. Because the “loop” going to rear parking brakes can slide on the bracket - adjusting on the bracket tightens both sides. Probably easiest to google 68 Camaro or nova parking brake and it’s obvious, better than my description

If your cable from either side connects to the cable from parking brake cable such that it is fixed - it’s not your case.

65 Belair 350
68 Camaro 327
93 Suburban 5.7L TBI


 
bowtie44s 
Valued Contributor
Posts: 4271
bowtie44s
Age: 37
Loc: wv
Reg: 08-29-12
02-16-20 09:16 AM - Post#2786646    
    In response to Sabino

It is just like the link that scramdldcj8 posted. I googled the 68 Camaro and I can understand how that works. This is a different setup.

#9 is the equalizer and it does adjust, but only where the right side screws in. The front of that equalizer clips over the left side cable and is locked in place. It doesn't move.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
Sabino 
Member
Posts: 119

Reg: 07-16-05
02-16-20 12:10 PM - Post#2786664    
    In response to bowtie44s

Maybe one of the parking brake schematics in this link will give a clue? https://nemigaparts.com/cat_spares/epc/chevro let/5...

Seems if one side is adjustable, then only other possibility is the main cable is adjustable up by brake pedal? adjust left side with that and then other with the "adjuster"? no clue good luck!

65 Belair 350
68 Camaro 327
93 Suburban 5.7L TBI


 
scrambldcj8 
Silver Supporting Member
Posts: 2537
scrambldcj8
Loc: Belchertown, MA
Reg: 04-06-03
02-16-20 04:06 PM - Post#2786680    
    In response to Sabino

  • Sabino Said:
possibility is the main cable is adjustable up by brake pedal?




I just had to go take a look at my '94 pedal arrangement....I don't see any adjustability at the pedal end....?





Edited by scrambldcj8 on 02-16-20 04:07 PM. Reason for edit: No reason given.

 
Sabino 
Member
Posts: 119

Reg: 07-16-05
02-16-20 04:42 PM - Post#2786683    
    In response to scrambldcj8

Now I’m curious. I have service manuals for a 93 and when I got home checked it out. Seems adjustment is done in rear brake on this year. Don’t know about earlier. I can’t attach photos of manual but if you PM me email I can email them.

65 Belair 350
68 Camaro 327
93 Suburban 5.7L TBI


 
bowtie44s 
Valued Contributor
Posts: 4271
bowtie44s
Age: 37
Loc: wv
Reg: 08-29-12
02-17-20 09:11 AM - Post#2786720    
    In response to Sabino

I was wondering what the manual said about it. It says you have to adjust it inside the drum?

PM sent

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
stumppuller 
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Posts: 885
stumppuller
Loc: Canada
Reg: 11-01-04
02-17-20 04:02 PM - Post#2786753    
    In response to bowtie44s

I'll Chime in here...

If you have the equalizer bracket pictured, then there is only one screw to adjust. The way it all hooks together causes it to effectively adjust both sides.

That said, when only one side seems to adjust, you normally have a seized cable or parking brake arm inside the opposite drum. I suspect this is your actual issue here.

Attachment: 6021121-007__ra_p.jpg (24.07 KB) 0 View(s)




-91 Sierra C2500, now K2500
-81 Chev K20


 
bowtie44s 
Valued Contributor
Posts: 4271
bowtie44s
Age: 37
Loc: wv
Reg: 08-29-12
02-17-20 08:02 PM - Post#2786771    
    In response to stumppuller

I have the equalizer like pictured. My cables aren't seized. They are all brand new. Sabino sent me pictures from the service manual. It looks like you adjust the left side inside the drum.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
stumppuller 
"9th Year" Gold Supporting Member
Posts: 885
stumppuller
Loc: Canada
Reg: 11-01-04
02-18-20 11:08 AM - Post#2786797    
    In response to bowtie44s

Never encountered that before.

If you can, post some pictures of the setup. I'm curious to see what it looks like.

-91 Sierra C2500, now K2500
-81 Chev K20


 
bowtie44s 
Valued Contributor
Posts: 4271
bowtie44s
Age: 37
Loc: wv
Reg: 08-29-12
02-18-20 06:44 PM - Post#2786819    
    In response to stumppuller

It is exactly like the LMC Truck link Scrambldcj8 posted on 2-16-20. If you look there is no adjustment for the left side.

Sabino sent me pictures of the service manual showing adjusting the left side inside the drum where the cable hooks up. I just put on new shoes and hardware kit and don't remember seeing an adjustment there, but my truck doesn't have the original rear end.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
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