The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Squealing noise when on gas in reverse, now .......

SeventyOne · 02-15-2018, 09:53 PM

Wait so when in 4WD (high?) and with the hubs unlocked it drives - so it must be RWD right?

But take it out of 4WD and you have no forward gears...sounds like a Tcase problem to me if 2Hi isnt working but 4Hi gets you moving.

Please confirm the hubs are unlocked so we know you're moving in RWD mode.

02-15-2018, 09:53 PM	#2
SeventyOne Registered User Join Date: Mar 2007 Location: Oakland, Ca Posts: 1,370	Re: Squealing noise when on gas in reverse, now ....... Wait so when in 4WD (high?) and with the hubs unlocked it drives - so it must be RWD right? But take it out of 4WD and you have no forward gears...sounds like a Tcase problem to me if 2Hi isnt working but 4Hi gets you moving. Please confirm the hubs are unlocked so we know you're moving in RWD mode.