Gearbox or rear axle?

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Caprimaniac
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Gearbox or rear axle?

Post by Caprimaniac » Mon Sep 05, 2016 4:25 pm

I'm not 100% on the answer on this, even after using Google......

My car With a Camaro T-5 has a whining noice when in 4. gear above 50mph and in 5. gear at any speed.

The sound/ frequency is identical in both gears, and goes away if I let off the throttle.
So, it's on at slight and more agressive throttle in these gears.

After a Google search I figured it had to be wrong CWP backlash. So I checked this, even remember I shimmed it a bit tighter. Very little or noe difference.

I Guess it can't be the 5. gear, as it's there in 4. as well.

Could it be main bearing on outgoing shaft?

I'd appreciate Your knowledge or theories here, folks!

Thanks
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peejay
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Re: Gearbox or rear axle?

Post by peejay » Tue Sep 06, 2016 7:40 pm

I've never had a noisy transmission make noise in 4th gear, let alone make the same noise in different gears at the same speed.

Ignore backlash, what is the gear pattern?

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Re: Gearbox or rear axle?

Post by autogear » Mon Sep 12, 2016 3:57 pm

Typically, the mainshaft tapered bearings run tight...and the countershaft/cluster/layshaft runs a bit looser. It could be that you have excessive clearance in your bearing sets

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Re: Gearbox or rear axle?

Post by Caprimaniac » Fri Sep 30, 2016 12:50 pm

Never looked at the pattern... Gearset has been in there since car was New.... 1977? At least since I bought the car...
So, pattern should be good. Could be worn out.

It's worst in 5. gear. I woud Guess bearings or... the 4. gear whine is a different Source, and we have the classic T-5 5. gear noice? I will check even more... And study the split drawings of this Box...

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