The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-08-2024, 04:37 PM   #1
epfatboy
Registered User
 
Join Date: Mar 2018
Location: Barrington nh
Posts: 108
SHAKE... While and AFTER I hit the brakes

Got an '86ish K10 with like a 3" lift an 33's.

Had the truck for 3 years done nothing to it but change plugs and oil so something was bound to start complaining.

Took her for some errands and noticed a small shake, thought it might be the brakes but nothing to worry about yet

The next ride was eye opening, got about 10 miles out and hit the brakes at around 50mph and she started shaking hard, let off the brakes and the shaking went away. I've driven my share of **** boxes, this wasn't a shake you ignore.
So now I'm heading home and need to hit the brakes again, starts to shake hard let off the brake and she kept shaking for about another 30 seconds... WTF! Sonow the speed does not exceed 20mph, still shakes but doable.

Got it up in the air,

Nothing sticks out yet but haven;t taken a wheel off yet 'cause it's 900 degrees out today.

Any ideas of what to test and how. I was thinking about rebuilding the suspension components minimally anyway but really not sure where this is coming from and I'd like to figure that part out before I dig in.

Is there anyway this could be coming from the rear brakes? Sorta felt like it was the ass end hoping all over the place but I can't rule out the front.
epfatboy is offline   Reply With Quote
Old 07-08-2024, 07:12 PM   #2
Honest Bob
Registered User
 
Honest Bob's Avatar
 
Join Date: Jan 2017
Location: Easton PA
Posts: 219
Re: SHAKE... While and AFTER I hit the brakes

This guy does a great explanation of what your looking for. If you can have someone move the steering wheel for you great, if not use your phone to record the areas while you move the steering wheel.

https://www.youtube.com/watch?v=Q4kzvsCphzU

Also yes, the rear brakes can cause the truck to veer to one side when braking if both are not adjusted the same.

Odds are that you have multiple problems at once.
Honest Bob is offline   Reply With Quote
Old 07-08-2024, 09:20 PM   #3
Bandit130
Registered User
 
Bandit130's Avatar
 
Join Date: Dec 2014
Location: Euless, Texas
Posts: 516
Re: SHAKE... While and AFTER I hit the brakes

Sounds like warped rotors to me. I have had similar symptoms with warped rotors.
__________________
1974 Cheyenne 10 LWB Stock 350 W/HEI /TH350/AC/4 BBL Quadrajet


Mopar by Birth
Chevy by Choice
Bandit130 is offline   Reply With Quote
Old 07-09-2024, 06:30 AM   #4
Dead Parrot
Registered User
 
Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,587
Re: SHAKE... While and AFTER I hit the brakes

Another suspect is a leaking rear wheel cylinder or front caliper. Leaking fluid on rotor or drum can cause interesting brake action.

Check your brake fluid levels. A full master cylinder doesn't exclude a leak but one with low levels should move fluid leak to the top of the list.
Dead Parrot is offline   Reply With Quote
Old 07-10-2024, 02:35 PM   #5
epfatboy
Registered User
 
Join Date: Mar 2018
Location: Barrington nh
Posts: 108
Re: SHAKE... While and AFTER I hit the brakes

Okay wheels off and the brakes are fine front and rear.

Tie rods do not look good, draglink looks suspect too.

Ball joints… didn’t see any play which makes me think the test wasn’t that good.

Think I’ll short the total rebuild for now and just to the tie rods and drag links and see what that gets me.

I know at some point I’ll get to the ball joints, when I do the hubs and cv’s are on the list too.
epfatboy is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:02 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com