strange noise - The 1947 - Present Chevrolet & GMC Truck Message Board Network

k-20 · 07-10-2006, 06:01 AM

ive had a strange noise in the truck for a while now,it seems to be coming from front of gear box?the noise isnt allways there,after driving for about 3/4-1 hour a bearing noise?? appears but when you push the clutch in the noise decreases to almost 0.a friend thinks it is the spigot bush,but i didnt want to pull gear box and transfer out just to lube the bush,only to find that its not the spigot!any sugestions would be greatly appreciated,thanks!

k-20 · 07-11-2006, 08:28 AM

no ideas?

1969K10 · 07-11-2006, 08:44 AM

Really sounds like the pilot bushing for the tranny into the back of your motor...

72 CustomCamper · 07-11-2006, 05:47 PM

Sounds like the through out bearing. When you push in the clutch it puts preasure on the bearing and the noise usually goes away then...

Chuck

**special-K** · 07-12-2006, 07:07 AM

It could be the input shaft bearing,too.If clutch action affects it,that`s where you`ll need to look.With the pedal depressed everything is held tight to eliminate any extra tolerance.

07-10-2006, 06:01 AM	#1
k-20 Registered User Join Date: Jan 2005 Location: tasmania.australia Posts: 170	strange noise ive had a strange noise in the truck for a while now,it seems to be coming from front of gear box?the noise isnt allways there,after driving for about 3/4-1 hour a bearing noise?? appears but when you push the clutch in the noise decreases to almost 0.a friend thinks it is the spigot bush,but i didnt want to pull gear box and transfer out just to lube the bush,only to find that its not the spigot!any sugestions would be greatly appreciated,thanks!

07-11-2006, 08:28 AM	#2
k-20 Registered User Join Date: Jan 2005 Location: tasmania.australia Posts: 170	Re: strange noise no ideas?

07-11-2006, 08:44 AM	#3
1969K10 Senior Member Join Date: Jul 2004 Location: Clarks Hill, Indiana Posts: 733	Re: strange noise Really sounds like the pilot bushing for the tranny into the back of your motor...

07-11-2006, 05:47 PM	#4
72 CustomCamper huh ??? Join Date: Nov 2002 Location: Fredericksburg,Va. Posts: 3,368	Re: strange noise Sounds like the through out bearing. When you push in the clutch it puts preasure on the bearing and the noise usually goes away then... Chuck __________________ 90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!"

07-12-2006, 07:07 AM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: strange noise It could be the input shaft bearing,too.If clutch action affects it,that`s where you`ll need to look.With the pedal depressed everything is held tight to eliminate any extra tolerance. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~



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