Randy mckinney Posted February 28, 2014 Share Posted February 28, 2014 99 rd688 how much should the rear move in an out the take turns in and out it seams like its pretty extream to me its like 4" one of the drivers said its normal to move that much but he a driver not a wrench turner Quote Link to comment https://www.bigmacktrucks.com/topic/34842-rear-suspension/ Share on other sites More sharing options...
jakebrake86 Posted February 28, 2014 Share Posted February 28, 2014 Bronze or rubber trunnion bushings? If it's bronze most likely the rubber insulator pads between the springs and the axle housings need replaced. See if you can stick your finger through the hole in the spring cap and if you can wiggle the top pad most likely the bottom one is collapsed. They do walk a little side to side when turning but 4'' is a little excessive. When they get really bad you can feel the ass end of the truck swap sides when you hit the accelerator/brake. Quote Jake Link to comment https://www.bigmacktrucks.com/topic/34842-rear-suspension/#findComment-234936 Share on other sites More sharing options...
slpwlker Posted February 28, 2014 Share Posted February 28, 2014 the hell with the accelerator let the ass end find every little nook and cranny on the road. Bastard will keep you on the ball at all times Quote Link to comment https://www.bigmacktrucks.com/topic/34842-rear-suspension/#findComment-234939 Share on other sites More sharing options...
Randy mckinney Posted February 28, 2014 Author Share Posted February 28, 2014 You can watch them in the miror swithinback an forth driven in a straight line also shoud the round tube between walkin beams be able too move back an forth by hand Quote Link to comment https://www.bigmacktrucks.com/topic/34842-rear-suspension/#findComment-234959 Share on other sites More sharing options...
jakebrake86 Posted March 2, 2014 Share Posted March 2, 2014 You mean the trunion? No sir, it should be fixed solid to the truck. The springs pivot on the trunion. Quote Jake Link to comment https://www.bigmacktrucks.com/topic/34842-rear-suspension/#findComment-235352 Share on other sites More sharing options...
gearhead204 Posted March 2, 2014 Share Posted March 2, 2014 it sounds like it has Hendrickson pad or spring over walking beam that would explain the tube moving between the trunions. If it has this check where the diffs. move between the cross members if wore badly the diff. side covers will hit the cross members. to check back truck into a turn while loaded and then check for proper clearance. the good news is its easer to re bush than a camel back. Quote Link to comment https://www.bigmacktrucks.com/topic/34842-rear-suspension/#findComment-235357 Share on other sites More sharing options...
R.E.D Posted March 15, 2014 Share Posted March 15, 2014 I have the sam3 issue..need transverse torque rod and bracket Quote Link to comment https://www.bigmacktrucks.com/topic/34842-rear-suspension/#findComment-237389 Share on other sites More sharing options...
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