mrsmackpaul Posted October 24, 2017 Share Posted October 24, 2017 It has a lot less weight on the tyres when empty so they are a lot more likely to skip side ways and not track When it has a load on the tyres would be more likely to track with all that extra weight on If this has only started since you put the poly ones in, or has only become more apparent since you put the poly ones in it may be worth looking into trying the rubber ones again Paul Quote Link to comment https://www.bigmacktrucks.com/topic/51446-hopping-issue/page/2/#findComment-383319 Share on other sites More sharing options...
mrsmackpaul Posted October 24, 2017 Share Posted October 24, 2017 On 10/21/2017 at 2:12 AM, 2000CL713 said: seeing if anyone can help me with this problem. on a 2000 CL713. i have Mack camel-back susp. the problem is when i go around a turn the rear tires hop. it all started when i changed the rear spring insulators/bushings. iv had it at mack and the chassis shop and they cant fine anything wrong with it. one guy at the chassis shop said it could be the insulators/bushings are to stiff. i used the dark blue ones. i was told there are 3 difference kinds but im not sure... has anyone had this problem or heard of it or if diff pads will help?? parts that are new springs and trunnion and stand. basically everything in the rear susp wise has been replaced. had everything replaced bc the older versions are prone to cracking and wanted to get it done before that. The bloke at the chassis shop did suggest this as well and it has only started since then I reckon there has gotta be some clues here for sure Even just parked bobtail in the drive after I turned into the house I reckon my drive is a 1 inch or more out of align but drive 20 yards don the road in a straight line you couldnt line them up better with string line They obviously have to be able to move a fare way on there own Paul Quote Link to comment https://www.bigmacktrucks.com/topic/51446-hopping-issue/page/2/#findComment-383320 Share on other sites More sharing options...
2000CL713 Posted October 24, 2017 Author Share Posted October 24, 2017 yea before the poly ones i never noticed a hopping problem. he also told me they install the poly ones for trucks that do hop with the rubber ones so thats what lef me wondering again if it should swap them or not. didnt want to do it and it didnt help. Quote Link to comment https://www.bigmacktrucks.com/topic/51446-hopping-issue/page/2/#findComment-383347 Share on other sites More sharing options...
mdphili Posted November 12, 2017 Share Posted November 12, 2017 I have a 94 CL 713, I also have had all the bushings replaced and new rearends, housings and all, It's just the suspension I figure. I have drivin this truck everyday for the last 10 years. Quote Link to comment https://www.bigmacktrucks.com/topic/51446-hopping-issue/page/2/#findComment-384732 Share on other sites More sharing options...
2000CL713 Posted November 13, 2017 Author Share Posted November 13, 2017 is yours doing the same? Quote Link to comment https://www.bigmacktrucks.com/topic/51446-hopping-issue/page/2/#findComment-384778 Share on other sites More sharing options...
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