Weird noises under truck

[Supreme Pizza]

Upgrades

[Irbullet]

17 hours ago, starman8tdc said:

Upgrades

I’ve narrowed it down to transfer case or transmission. I’m leaning towards transfer case. I got up close to both driveshafts and the noise is not coming from those areas. 

 

 

 

[Supreme Pizza]

I would say that the transfer case is the issue. You can find out for sure with a $8 stethoscope. You may want to drop the drain plug on the transfer case, and see if there are metal shaving in the fluid. If you need a new transfer case, you should be able to get a replacement very inexpensively. 

 

 

[Supreme Pizza]

 

 

$125 for a transfer case. They are VERY light weight compared to ones made 25 years go. Should be easy to swap out. Make sure you use the correct fluid. 

 

 

 

http://www.picknpull.com/part_pricing.aspx?LocationID=136&NavItem=12&SearchCriteria=&#partpricing

[Irbullet]

23 minutes ago, starman8tdc said:

 

 

$125 for a transfer case. They are VERY light weight compared to ones made 25 years go. Should be easy to swap out. Make sure you use the correct fluid. 

 

 

 

http://www.picknpull.com/part_pricing.aspx?LocationID=136&NavItem=12&SearchCriteria=&#partpricing

I have one off of my suburban donor car. It is the same autotrack type transfer case I believe? I talked to the dealer I bought it from and they’re gonna look at it Monday. Fingers crossed, if they screw me i will just take it off my parts car. 

[SarahsGMC]

if you get into the Tcase do the case saver mod

 

https://www.merchant-automotive.com/10001-Transfer-Case-Pump-Upgrade-Kit.aspx

[Irbullet]

It was indeed the transfer case. Luckily I had the donor vehicle with similar np246 transfer case and was able to swap what I needed around. This is how the old transfer case came apart. Didn’t even touch the bearing! This bearing was the noise I was able to hear and what caused my issues. Everything seems to be smooth now.

 

 

 

Thanks everyone for the help.