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07-20-2014, 08:48 PM
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#26 |
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Registered User
Join Date: Aug 2005
Location: Louisiana
Posts: 711
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Re: Anyone ever had a pulsating vibe at highway speeds?
My '85 2wd has it. Two different engines, two different transmissions, two different torque converters, three different driveshafts, two different sets of wheels tires, new axles, new spider gears, all new bearings, driveline angle checked.
Yeah, I have spent a ton, It really bothers me to the point that I am just about ready to get rid of it. |
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07-20-2014, 11:02 PM
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#27 |
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Second Chance Program
Join Date: Jun 2006
Location: Portland, OR
Posts: 2,642
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Re: Anyone ever had a pulsating vibe at highway speeds?
Here is an issue i had with my 78 k20. If you watch the videos, you can see my drum is warped/defective.
https://www.youtube.com/watch?v=2GW4...eMpZ3lzDa3mVGw
__________________
90 Chevy Suburban 2500 5.3 swap/th400/np241/14bltSF/10blt. 77 C20 crew cab Silverado. 396/th400. In work. |
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07-21-2014, 09:29 PM
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#28 | |
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Registered User
Join Date: May 2010
Location: Rochester NY
Posts: 831
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Re: Anyone ever had a pulsating vibe at highway speeds?
Quote:
__________________
1973 k20 Suburban 350 1974 Custom stepside c-10 250 1975 Chevy stepside 454 1986 K30 Crewcab SRW 350 R.I.P- glimmertwin01- board member and good friend, you will be missed |
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07-22-2014, 12:23 AM
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#29 |
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Registered User
Join Date: Jun 2009
Location: Calgary AB.
Posts: 88
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Re: Anyone ever had a pulsating vibe at highway speeds?
I have an 87 GMC 3/4 t with a 9 1/2" semifloating rearend. I've always had a vibration at about 80 mph.Couldnt figure it out till this winter. The rearend yoke looked OK but the ujoint will slide sideways about a 1/4". Thats the next job on the list. Never seen that before. Just something else to check .Hope this helps.
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07-22-2014, 05:46 AM
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#30 | |
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Registered User
Join Date: Feb 2012
Location: Ruskin Florida
Posts: 4,566
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Re: Anyone ever had a pulsating vibe at highway speeds?
Quote:
__________________
70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350 |
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07-22-2014, 10:45 PM
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#31 |
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Second Chance Program
Join Date: Jun 2006
Location: Portland, OR
Posts: 2,642
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Re: Anyone ever had a pulsating vibe at highway speeds?
Nope. I drive the truck about 1000 miles a year. If that. For now. So i have just lived with it. Anyway, i plan on just getting a junk yard hob/drum and slapping it on there to see how it does.
__________________
90 Chevy Suburban 2500 5.3 swap/th400/np241/14bltSF/10blt. 77 C20 crew cab Silverado. 396/th400. In work. |
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09-07-2022, 08:12 PM
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#32 |
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Registered User
Join Date: Nov 2017
Location: fernandina beach
Posts: 36
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Re: Anyone ever had a pulsating vibe at highway speeds?
I know this thread is old but I'm having the same issue and wondering if you ever figured it out? I've had 2 different engines and transmissions, 2 driveshafts both rebuilt prior to install (different lengths went big block), rear end rebuilt with different carrier, new rims and tires, and redid all brakes. I can't figure out what is causing vibration.
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