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04-12-2002, 01:42 PM
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#1 |
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Livin' it up.
 
Join Date: Nov 2001
Location: Richland, MI
Posts: 2,212
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Mounts?
Alright here's my thing. Sometimes when i shift into a gear the tranny will kick, like a nice clunk. Doesnt do it all the time but when it does you hear it. I checked the motor mounts. put in D, held brake, gave gas, motor moves to right. in reverse its the opposite (i might have the side it leans to a li'l messed but i dunno).
Is this normal or are my engine mounts bad? or possibly my tranny mounts? it doesnt shift hard AT all, it's really smooth going through all the gears and only clunks when i go into d or into r or whatever on occasion. Thanks. ------------------ 69 Custom 20, 396BB,Longbed fleetside. New Oak Bed With SS strips... damn nice. Edelbrock performer RPM-O, Edelbrock 750Carb, Headers, HEI, 2 40" glasspacks. Stereo: Classic-style tape deck/radio, 2 6x9 Cerwin Vega's in doors, 2 10" Neo subs under seats, 1 900 Watt amp. SN= Ares220
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-Greg; Sold the 69 C20. It's off to a better home with more love! Now onto the 86 CUCV M1009; K5 blazer with 6.2L diesel, corp 10 bolt axles, Detroit locker in the rear, trutrac front, 3.73 gears, 35" tires. 
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04-12-2002, 02:08 PM
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#2 |
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Senior Member
 Join Date: Mar 2000
Location: Rockville,In. USA
Posts: 3,722
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at least 1 u-joint on driveshaft is bad and needs replaced.
GMCPaul ------------------ Online Catalog for-GMCPauls Truck Parts.com 67 LWB GMC SuperCustom Fleetside 67 LWB GMC Stepside 67 SWB GMC Stepside 67 SWB GMC Fleetside 67 SWB Chevy CST Fleetside 67 LWB Chevy CST Fleet 67 SWB Chevy Stepside 67 LWB Chevy Stepside 68 2wd Chevy 1/2 t. Panel 68 Chevy Panel 1/2Ton 4X4 68 LWB Chevy Fleet 4X4 69 SWB Chevy Stepside 71 GMC Suburban 402/400 72 LWB Chevy Camper Special 72 LWB Chevy Camper Special Nope not a typo 2-72 Camper Specials and no they are NOT FOR SALE MINE MINE MINE and we accept ALL 67 Refugees Looking For More Never Enough!!! |
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04-12-2002, 02:18 PM
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#3 |
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Registered User
Join Date: May 2000
Location: Victoria, BC, Canada
Posts: 2,409
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Yes, first thing I thought of too (U-joint).
Do you get any vibration on the highway? ------------------ Southpa 1970 GMC 1500 Custom Victoria, BC, Canada
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1970 GMC 1500 Custom Original 350/TH350 Victoria, BC, Canada You can wish in one hand and crap in the other. See which one gets filled first. |
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04-12-2002, 04:03 PM
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#4 |
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Livin' it up.
Join Date: Nov 2001
Location: Richland, MI
Posts: 2,212
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No u joint slop at all from what i can tell, and no vibrations at any time. Hmm, i'll check it out though, any way of checking them when i pull em? like i said it doesnt do it all the time, only on occasion...
------------------ 69 Custom 20, 396BB,Longbed fleetside. New Oak Bed With SS strips... damn nice. Edelbrock performer RPM-O, Edelbrock 750Carb, Headers, HEI, 2 40" glasspacks. Stereo: Classic-style tape deck/radio, 2 6x9 Cerwin Vega's in doors, 2 10" Neo subs under seats, 1 900 Watt amp. SN= Ares220
__________________
-Greg; Sold the 69 C20. It's off to a better home with more love! Now onto the 86 CUCV M1009; K5 blazer with 6.2L diesel, corp 10 bolt axles, Detroit locker in the rear, trutrac front, 3.73 gears, 35" tires.
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04-12-2002, 04:12 PM
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#5 |
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Senior Member
 
Join Date: Dec 1999
Location: Darrington, Washington
Posts: 3,963
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rearend slop,pinion yoke,u joint.everthing i have has a slight clunk when going from p to gears,dont think you can eliminate all of it.
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04-12-2002, 05:09 PM
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#6 |
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Registered User
Join Date: Oct 2001
Location: Southern New Mexico
Posts: 649
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I had a similar problem. Tranny would pop out of gear at a quick start. It was the motor mounts. In drive brake on I give it a little gas and the motor would jump up on the driver side.
I replaced both motor mounts TODAY with the motor still in the truck. I hope to never replace those again it was a *****(5 hours)the A/c really gets in the way. I could not line up all the bolt holes correctly. Anyway no more poppin out of gear and motor only moves the normal amount when I give it gas. |
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