Keffer inc Posted December 9, 2013 Share Posted December 9, 2013 I jacked up the front and found some play in the steering gear box, kingpins drive shaft drag link seem fine, is that little play inside the box enough to do that, and can it be adjusted, I see something above the grease fitting, do I just turn that? Quote Link to comment https://www.bigmacktrucks.com/topic/33812-truck-has-a-bad-vibration/ Share on other sites More sharing options...
Keffer inc Posted December 9, 2013 Author Share Posted December 9, 2013 It is a 99 Ch613 And starts vibrating at 45-50 mph and higher. Quote Link to comment https://www.bigmacktrucks.com/topic/33812-truck-has-a-bad-vibration/#findComment-220585 Share on other sites More sharing options...
rsb502 Posted December 9, 2013 Share Posted December 9, 2013 Don't tighten up your gearbox, if your having a vibration its more than likely a balance issue. What kind of vibration, thru the steering wheel, feel it thru the seat? Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/33812-truck-has-a-bad-vibration/#findComment-220594 Share on other sites More sharing options...
j hancock Posted December 9, 2013 Share Posted December 9, 2013 Did this start after the accident? Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/33812-truck-has-a-bad-vibration/#findComment-220598 Share on other sites More sharing options...
Challenger Posted December 9, 2013 Share Posted December 9, 2013 Rear air ride suspension? Ride height problem? Quote Link to comment https://www.bigmacktrucks.com/topic/33812-truck-has-a-bad-vibration/#findComment-220601 Share on other sites More sharing options...
theakerstwo Posted December 9, 2013 Share Posted December 9, 2013 Or don't forget mud being inside of the wheels.I have seen some of that and it can be real rough depending on how much is stuck in there. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/33812-truck-has-a-bad-vibration/#findComment-220603 Share on other sites More sharing options...
Keffer inc Posted December 10, 2013 Author Share Posted December 10, 2013 It felt like the drive shaft, but everything is tight and normal. Sometimes the vibes come and go. It did seem to start around the time of the accident. I have some play in my tie rods that connect the wheels together too, that with play inside the box I guess is my problem? The thing of it though is my steering wheel still stays sstraight if I let go, so that's the mystery to me. Quote Link to comment https://www.bigmacktrucks.com/topic/33812-truck-has-a-bad-vibration/#findComment-220704 Share on other sites More sharing options...
2stacksuperdog Posted December 10, 2013 Share Posted December 10, 2013 Check carrier bearing, and u-joints. may look and feel tight but still be bad 1 Quote Matt Link to comment https://www.bigmacktrucks.com/topic/33812-truck-has-a-bad-vibration/#findComment-220705 Share on other sites More sharing options...
Keffer inc Posted December 14, 2013 Author Share Posted December 14, 2013 Thanks for the responses. 2stacksuperdog was close, the pinion on the back of my transmission has a bad bearing? I was about to take the drive shaft off and go through the gears to see if it was inside there, but as I was going on my first bolt, I noticed the pinion had lots of slop in it, and the seal is bad too, (truck leaks everything, everywhere) So does anyone know how much this project will suck? I noticed four bolts going around the pinion, is it as simple as taking the yoke off and pulling the plate off to get the bear(s) replaced? or does the entire back half with all the counter shaft bearings and stuff come off too? estimated time frame? Its a Spicer 10 speed transmission as well (Spicer SD-PS-10) and I cant find any pictures of the back half taken off, so anyone that can tell me anything, please don't hold out. Thanks 1 Quote Link to comment https://www.bigmacktrucks.com/topic/33812-truck-has-a-bad-vibration/#findComment-221385 Share on other sites More sharing options...
Kristen Posted December 16, 2013 Share Posted December 16, 2013 If it's diesel truck vibration is common.. Quote Link to comment https://www.bigmacktrucks.com/topic/33812-truck-has-a-bad-vibration/#findComment-221693 Share on other sites More sharing options...
rsb502 Posted December 18, 2013 Share Posted December 18, 2013 Most of the time its just the back bearing since it gets less oil, I just swapped the one in my 9 speed. No big deal really you don't even have to pull the output shaft if it's just the back bearing, just pop the yoke off, pull the speedo housing and pull the back bearing, re install new bearing, speedo housing gasket and output seal, yoke and drive line. Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/33812-truck-has-a-bad-vibration/#findComment-222008 Share on other sites More sharing options...
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