Topic: 1975 4 Speed Bearing noise
in Forum: C3 Driveline Components
Howdy Gents,
I have a 1975 Stingray with the standard 4 speed and she's making a bearing noise. I thought it might be a throw out bearing, but it happens when the transmission is turning. The clutch can be either depressed or not. Haven't heard of this before. The previous owner said he went to a Chevy dealer and they said "Not a big deal". It is annoying and kind of loud. You can hear it on the side of the street as I go by. I haven't taken it to a Trans place yet. Just wanted some opinions before I take it in and get lied to. Maybe low fluid ??. Thanks for your help !!
Bruce

Moderator
If the noise stops with it in gear, clutch down, then you definitely have a trans noise. How bad it is would determine if it needs to be repaired soon.
Joel Adams
C3VR Lifetime Member #56
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Thanks Joel,
I am 99% sure it is a trans noise. I am not familiar with issues with these 4 speed transmissions. Is it common for a 40 year old, 75K mile trans to make noise?? Is it a "Main" bearing, or some other bearing that goes in these transmissions?? I thought someone out there had the same issue with these transmissions. I have had manual transmissions before and they were pretty much trouble free. I don't believe it was raced or abused. Thanks again
Bruce

Moderator
This is why I suggested putting it in gear with the clutch depressed.
The four speeds can make what some would consider "normal" noises, but...if you can hear it whining/growling as you drive past a building, then it's prolly too loud, and should be looked into.
Bearing kits are fairly reasonable, price-wise, as long as you get a real, name brand kit. Cheaper kits will have cheaper, off-shore bearings that may make more noise than what you have now.
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"



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DanT