Moparmike Posted March 19, 2019 Share Posted March 19, 2019 I'm thinking that my u joint at the box is bad because I have a spot now that locks them let's go and makes a loud pop.if I look at the box and joint with someone moving the wheel back and 4the joint slips around the top of the shaft about a half inch ..anybody have this problem before. Been on a rough haul dump truck in sand pot holes wild driver with lead foot.im hoping it's not the box Oh 2000 rd690 E7 auto Thanks for the help Quote Link to comment https://www.bigmacktrucks.com/topic/56235-u-joint-at-steering-box-help/ Share on other sites More sharing options...
JoeH Posted March 19, 2019 Share Posted March 19, 2019 The u joints are supposed to be clocked, if someone had it apart they may have put it together wrong. Joints fight each other if they aren't clocked right. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/56235-u-joint-at-steering-box-help/#findComment-418530 Share on other sites More sharing options...
Moparmike Posted March 19, 2019 Author Share Posted March 19, 2019 No it hasn't been off I'm thinking that the rough job has beat it up and caused it to slip more then it should move on the gear box shaft..cause driving it some times it doesn't even get to that point where it has that little bite of lock Quote Link to comment https://www.bigmacktrucks.com/topic/56235-u-joint-at-steering-box-help/#findComment-418546 Share on other sites More sharing options...
JoeH Posted March 19, 2019 Share Posted March 19, 2019 K I'd get it repaired before it breaks at 60 mph on the highway. Quote Link to comment https://www.bigmacktrucks.com/topic/56235-u-joint-at-steering-box-help/#findComment-418547 Share on other sites More sharing options...
MACKS Posted March 19, 2019 Share Posted March 19, 2019 Are you saying it's slipping on the splined shaft that comes out of the top of the steering box? Quote Link to comment https://www.bigmacktrucks.com/topic/56235-u-joint-at-steering-box-help/#findComment-418549 Share on other sites More sharing options...
blackdog2 Posted March 19, 2019 Share Posted March 19, 2019 Cab mount ? Quote Ed Link to comment https://www.bigmacktrucks.com/topic/56235-u-joint-at-steering-box-help/#findComment-418557 Share on other sites More sharing options...
Moparmike Posted March 19, 2019 Author Share Posted March 19, 2019 Yes turning on the shaft about half inch I didn't know that the yoke that goes on the shaft had splines so maybe the splines are worn I going to try and remove the yoke from the top of the shaft and see what things look like But I know if I have the truck up on the jack with no pressure on the steering it turns free no binding or locking Mack dealer said could come from pot holes on the job binding the u joint set up beyond its travel and wild driver trying to fly on job site which I know they do I've gotten on them before for the same reason I'll try to get a picture of the problem thanks Quote Link to comment https://www.bigmacktrucks.com/topic/56235-u-joint-at-steering-box-help/#findComment-418562 Share on other sites More sharing options...
Moparmike Posted March 27, 2019 Author Share Posted March 27, 2019 Ok guys update truck has been fixed Turns out the pin in the spring pak on driver side was broken and the u joints on the top of gear box and inside can was worn out no splines left inside them Replace and truck is back working like a dog lol Thanks guys 1 Quote Link to comment https://www.bigmacktrucks.com/topic/56235-u-joint-at-steering-box-help/#findComment-419120 Share on other sites More sharing options...
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