The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Drive-line noises

old cool · 05-09-2014, 05:40 PM

Dear 66 Sub,
I wish I knew how to video and such. It would be a lot easier. Before I attempt to describe again, let me tell you what model and components I have. Truck is a model 1000, swb. Trans is a synchronized 3 speed stick that shifts very well. I believe its a Saginaw trans as I saw one with same numbers on ebay. I was told the differential is a model 44 Dana (it has 10 bolts around cover and I see no tags for posi.
To answer your last question, yes, I hear the whine more when I push the clutch in between 1st and 2nd. The sound is higher level pitch and steady. When I accelerate in 1st and 2nd the sound is less noticeable as it is overpowered by the sound of the engine rev. In high (3rd) the sound is steady unless I step on it then it's overpowered again by sound of engine.
I forgot to mention in earlier posts that the sound is much less and more tolerable between 35 and 40 mph. That's probably a huge variable. Just thought about it.
In your 2nd video, (someone driving), I noticed that my truck sounds almost exactly the same through 1st and 2nd. However, I did not notice a noise in yours while cruising in 3rd. I definately have a whine.
Lastly, I do now notice a vibration in steering wheel around 30mph as I'm rolling to stop. That is what has also drawn me to threads on drive shaft and u joints.
Let me know if I'm posting too much info at once. I tend to read several threads and that gets the wheels turning (no pun intended).

05-09-2014, 05:40 PM	#29
old cool Registered User Join Date: Apr 2014 Location: Rochester, MI Posts: 206	Re: Drive-line noises Dear 66 Sub, I wish I knew how to video and such. It would be a lot easier. Before I attempt to describe again, let me tell you what model and components I have. Truck is a model 1000, swb. Trans is a synchronized 3 speed stick that shifts very well. I believe its a Saginaw trans as I saw one with same numbers on ebay. I was told the differential is a model 44 Dana (it has 10 bolts around cover and I see no tags for posi. To answer your last question, yes, I hear the whine more when I push the clutch in between 1st and 2nd. The sound is higher level pitch and steady. When I accelerate in 1st and 2nd the sound is less noticeable as it is overpowered by the sound of the engine rev. In high (3rd) the sound is steady unless I step on it then it's overpowered again by sound of engine. I forgot to mention in earlier posts that the sound is much less and more tolerable between 35 and 40 mph. That's probably a huge variable. Just thought about it. In your 2nd video, (someone driving), I noticed that my truck sounds almost exactly the same through 1st and 2nd. However, I did not notice a noise in yours while cruising in 3rd. I definately have a whine. Lastly, I do now notice a vibration in steering wheel around 30mph as I'm rolling to stop. That is what has also drawn me to threads on drive shaft and u joints. Let me know if I'm posting too much info at once. I tend to read several threads and that gets the wheels turning (no pun intended).