Vibration-What next - The 1947 - Present Chevrolet & GMC Truck Message Board Network

CRRoy71 · 03-17-2003, 01:01 AM

I've got a vibration in my drivetrain somewhere, and I can't figure it out.
After the tires are checked for balance, what should be my next step? Driveshaft, U-joints?

The vibration starts at around 60 mph and goes through about 70 mph.

pugs · 03-17-2003, 01:13 AM

you should be able to just grab on to the driveshaft and see if you have any play in the u-joints. if all ok there you could have thr shaft balanced if ok then you will have to dig into the rear pinion bearing,axel bearings or carrier bearings also ck all mounts you could possible have one abit worn

apstguy · 03-18-2003, 01:10 AM

Get your truck aligned. It can help alot!

CRRoy71 · 03-23-2003, 11:42 PM

Well, I think I found the problem. I hope.
My Dad and I were under the truck looking for an exhaust leak and I mentioned the vibration to him. He grabbed the drive shaft and shook on it. There was a considerable amount of slack where the tailshaft (I think that is what it is called) goes into the diff.

Do you think that could be it? My Dad seems to think so, and he knows a lot more than me about these trucks.

Just thought I would run it by the group.

pugs · 03-24-2003, 01:26 AM

it could be part or alll of the problem did it seem like it was a u-joint or the pinion shaft

CRRoy71 · 03-24-2003, 07:10 AM

It was the shaft moving around in the diff. housing.
My dad said something about the crush washer being bad in the diff.?

Blue Beard · 03-24-2003, 09:18 AM

Always listen to dear old DAD, there's alot of experience to be gained...........

CRRoy71 · 03-24-2003, 09:33 AM

Yeah, I found that out the hard way. My wife's minivan had a shimmy in the front end and my Dad kept saying it was the tires. Well, I didn't believe it was the tires. After paying a lot of money to have the struts changed out (which is what I thought the problem was) I gave in and changed the tires. Problem solved!

*1FaastC10* · 03-24-2003, 01:13 PM

Quote:

Originally posted by Blue Beard
Always listen to dear old DAD, there's alot of experience to be gained...........

unless your dad is an idiot like mine. then pretend to listen, just so he shut up and goes away.

in my recent problems with my C1500, my dad asked me "are you sure the battery is charged?" HELLO! IT CRANKS FINE, DOESN'T IT?

Low87 · 03-24-2003, 01:28 PM

Quote:

Originally posted by 1FaastC10

unless your dad is an idiot like mine. then pretend to listen, just so he shut up and goes away.

in my recent problems with my C1500, my dad asked me "are you sure the battery is charged?" HELLO! IT CRANKS FINE, DOESN'T IT?

Just be glad my neighbor isn't your dad. He was asking me about my truck, I mentioned it will be getting a 350 sooner or later.
He says, "Oh yeah, those 350 big blocks are good engines."
I quit talking to him after that.

CRRoy71 · 03-24-2003, 02:25 PM

Is it just a bearing in the diff where the yoke goes in that I can replace without having to do a gear setup? Providing that my gears are ok.

I mean is this something that I can do easily?

03-17-2003, 01:01 AM	#1
CRRoy71 Registered User Join Date: Feb 2003 Location: Mont Belvieu, TX Posts: 852	Vibration-What next I've got a vibration in my drivetrain somewhere, and I can't figure it out. After the tires are checked for balance, what should be my next step? Driveshaft, U-joints? The vibration starts at around 60 mph and goes through about 70 mph. __________________ Chris '92 ext. cab s/b 4.3L "Sparky" '04 crew cab 2500 4x4 6.0L

03-17-2003, 01:13 AM	#2
pugs Registered User Join Date: Mar 2003 Location: Hamburg Pa Posts: 1,153	you should be able to just grab on to the driveshaft and see if you have any play in the u-joints. if all ok there you could have thr shaft balanced if ok then you will have to dig into the rear pinion bearing,axel bearings or carrier bearings also ck all mounts you could possible have one abit worn __________________ I don't do thing cuz I can, I do it cuz someone told me it couldn't be done...

03-18-2003, 01:10 AM	#3
apstguy LED King Join Date: Jan 2003 Location: Sacramento, CA Posts: 2,087	Get your truck aligned. It can help alot! __________________ Tyler 1985 C10 305 w/ Bowtie OD TH700R4 3.42 LSD 202,000 miles 2006 Ford Focus ZX3 5-speed Stick 2016 Chevy Spark EV Gone: 2002.5 VW GTI 24v VR6 Gone: 2008 VW R32

03-23-2003, 11:42 PM	#4
CRRoy71 Registered User Join Date: Feb 2003 Location: Mont Belvieu, TX Posts: 852	Well, I think I found the problem. I hope. My Dad and I were under the truck looking for an exhaust leak and I mentioned the vibration to him. He grabbed the drive shaft and shook on it. There was a considerable amount of slack where the tailshaft (I think that is what it is called) goes into the diff. Do you think that could be it? My Dad seems to think so, and he knows a lot more than me about these trucks. Just thought I would run it by the group. __________________ Chris '92 ext. cab s/b 4.3L "Sparky" '04 crew cab 2500 4x4 6.0L

03-24-2003, 01:26 AM	#5
pugs Registered User Join Date: Mar 2003 Location: Hamburg Pa Posts: 1,153	it could be part or alll of the problem did it seem like it was a u-joint or the pinion shaft __________________ I don't do thing cuz I can, I do it cuz someone told me it couldn't be done...

03-24-2003, 07:10 AM	#6
CRRoy71 Registered User Join Date: Feb 2003 Location: Mont Belvieu, TX Posts: 852	It was the shaft moving around in the diff. housing. My dad said something about the crush washer being bad in the diff.? __________________ Chris '92 ext. cab s/b 4.3L "Sparky" '04 crew cab 2500 4x4 6.0L

03-24-2003, 09:18 AM	#7
Blue Beard Registered User Join Date: Jan 2003 Location: Washington State Posts: 8,831	Always listen to dear old DAD, there's alot of experience to be gained........... __________________ 1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo

03-24-2003, 09:33 AM	#8
CRRoy71 Registered User Join Date: Feb 2003 Location: Mont Belvieu, TX Posts: 852	Yeah, I found that out the hard way. My wife's minivan had a shimmy in the front end and my Dad kept saying it was the tires. Well, I didn't believe it was the tires. After paying a lot of money to have the struts changed out (which is what I thought the problem was) I gave in and changed the tires. Problem solved! __________________ Chris '92 ext. cab s/b 4.3L "Sparky" '04 crew cab 2500 4x4 6.0L

03-24-2003, 02:25 PM	#11
CRRoy71 Registered User Join Date: Feb 2003 Location: Mont Belvieu, TX Posts: 852	Is it just a bearing in the diff where the yoke goes in that I can replace without having to do a gear setup? Providing that my gears are ok. I mean is this something that I can do easily? __________________ Chris '92 ext. cab s/b 4.3L "Sparky" '04 crew cab 2500 4x4 6.0L



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