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Thread: Knocking sound in 4 high only 45-60 MPH Reply to Thread
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  Topic Review (Newest First)
02-14-2020 02:40 PM
deer hunter 99500 miles bought it from my Grandfather in 2009 when it was 5 years old and at the time had 44000 miles on it. i put around 5000 a year on Ol' Bessie. Only used for pulling my 5th wheel or when i just need it like fishing trips or hunting season. It has not spent much time as a daily driver. I am really hoping the knocking sound is gone after all of this.
02-14-2020 06:21 AM
rghavana How many miles??
Not common issue.
OEM, POS castings not protected (also on trans should check it) need to maintain exterior ie powerwash, then fluid film or equivlent.

At some point new will be cheaper, can get brand new for 1400-1700 depending options/shaft sizes
https://torqueking.com/category/2003...ram-2500-5500/


Since your shop botched diagnoses, should give you a break on labor
02-13-2020 07:48 PM
deer hunter There doesn’t seem to be a way to attach photos on here from my phone. They finally got the t case separated from the trans. What an absolute mess. The corrosion between the two pieces was unreal. On top of that the ring on the front of the t case is broken with a crack just over half way around the entire piece. Had to replace the entire front half of the t case. The chain had enough slack in it that appears to have been walking up the gear teeth and then slapping back down. This truck has not been abused at all and is rarely driven in the winter to keep it out of the salt. Hopefully it’s all back together next week and I can have it back with no more knocking in 4 high.
02-03-2020 08:28 PM
deer hunter Well my buddies tires and rims made no difference so it's not related to a tire issue. There does seem to be more play in my front and rear outputs of my transfer case than his truck but it is a minor difference. The truck is going back out to the shop this Wednesday and we are having the transfer case rebuilt. Hopefully we will soon know the cause of this noise.
01-30-2020 08:12 PM
tryNto
I've run mine at interstate speeds for 100s of miles in 4Hi over the years.
01-30-2020 07:33 PM
deer hunter owners manual just says not to engage above 50 or 55. I took that to mean not to shift into 4 Hi above that speed not that it couldn't be driven above that speed in 4 high. I have always driven my 4 wheel drives trucks up to highway speeds on winter roads in Michigan including this one and it's never been a problem.
01-29-2020 12:36 AM
02smokin
Quote:
Originally Posted by White2005 View Post
How high of speed is 4HI rated for? (Aside from “Boosted” launches?)

When above 50 MPH, I thought 2WD was the recommended mode...?
I’ve been over a 100mph in many 3rd gens...
01-28-2020 08:23 PM
White2005 How high of speed is 4HI rated for? (Aside from “Boosted” launches?)

When above 50 MPH, I thought 2WD was the recommended mode...?
01-28-2020 05:52 AM
deer hunter Call me crazy buy yes. I've known this guy since high school and he is one of few shops in my area that will dive this deep into something. He is very good at repairs and they do good work. This has just been very difficult to diagnose. Noises are so hard to find sometimes, I wish I could strap myself under the truck while it's being driven to listen to everything under there while it's going down the road but I can't. Believe me I'm very frustrated with him as I blamed the transfer case for this problem since day one. However we have found reason to justify making every repair he has made so far. It's just the repairs have not been the cause of the knocking sound yet. I have found one other shop in the area that gets good remarks as far as being a good Diesel shop when it comes to engine work but when I talked to him he did not give the impression they were real strong with axles and such so I decided to stay with what I know. That may or may not have been a good idea but it seemed right at the time. I hate change and I have a hard time trusting someone new. Just me.
01-27-2020 08:41 PM
Jimmy N.
Quote:
Originally Posted by deer hunter View Post
Stinking transfer case is stuck to the transmission tail shaft and they cracked the tail shaft trying to separate it before so we will be replacing the tail shaft this time after they split the units.
You're going to use the same shop after that?!?
01-27-2020 08:35 PM
24hrsparkey Thank you for the update .
01-27-2020 08:25 PM
deer hunter Well I'm still no closer to a solution. Front Carrier and pinion bearing are now all new and gear back lash has been set. Still has a knocking in 4 high at 45-60. Gonna borrow a buddies truck and swap rims and tires to illuminate that before dumping $2000 into a transfer case rebuild. Stinking transfer case is stuck to the transmission tail shaft and they cracked the tail shaft trying to separate it before so we will be replacing the tail shaft this time after they split the units. I sure hope we find something inside the transfer case to be the culprit. Everyone keeps saying keep your old truck don't buy a new one but this is starting to make me go crazy. I just want the thing fixed so I can use it if I need it. It's been at the shop for 3 weeks now.
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