hatcity Posted September 10, 2012 Share Posted September 10, 2012 ben chasing a problem with the air suspension on the truck. Thought problem was the control valve, bought one. Before i could install, the control rod bottom piece broke. Got a replacement for it and have played around to adjust it. I know too little will ruin u-joints. Is there a problem with too much?Not easy to get at as I have to raise boom, and body to get to it. I can crawl in the dirt to adjust from underneathThanks, Ed Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/27253-air-suspension-question/ Share on other sites More sharing options...
theakerstwo Posted September 10, 2012 Share Posted September 10, 2012 To hi or too low or if the ujoint angles are off the joints will be hurt and maybe the trans to. Get the ride height from mck and set just like it should be and no more and no less. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/27253-air-suspension-question/#findComment-137262 Share on other sites More sharing options...
hatcity Posted September 11, 2012 Author Share Posted September 11, 2012 To hi or too low or if the ujoint angles are off the joints will be hurt and maybe the trans to. Get the ride height from mck and set just like it should be and no more and no less.Thanks. Trying to get info from the local Mack dealer is a challenge sometimes. I feel a very slight vibration now and I believe it is too high. Before it was low and you could really feel it. Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/27253-air-suspension-question/#findComment-137270 Share on other sites More sharing options...
staxx Posted September 15, 2012 Share Posted September 15, 2012 Ok AL and AL2 was 4- 1/4 from bottom of frame rail left front drive axle to the bottom edge of the suspensions main support with brakes off level ground full air psi Maxair 40 early prior to x mark on suspension was 5-1/4 later version was 4-7/8 think you have the AL or AL2 hope this helps. Quote Link to comment https://www.bigmacktrucks.com/topic/27253-air-suspension-question/#findComment-137744 Share on other sites More sharing options...
rsb502 Posted September 15, 2012 Share Posted September 15, 2012 Ok AL and AL2 was 4- 1/4 from bottom of frame rail left front drive axle to the bottom edge of the suspensions main support with brakes off level ground full air psi Maxair 40 early prior to x mark on suspension was 5-1/4 later version was 4-7/8 think you have the AL or AL2 hope this helps.Showoff! 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/27253-air-suspension-question/#findComment-137745 Share on other sites More sharing options...
staxx Posted September 15, 2012 Share Posted September 15, 2012 No show off would be if I showed picture of how its done. Quote Link to comment https://www.bigmacktrucks.com/topic/27253-air-suspension-question/#findComment-137749 Share on other sites More sharing options...
hatcity Posted September 15, 2012 Author Share Posted September 15, 2012 Ok AL and AL2 was 4- 1/4 from bottom of frame rail left front drive axle to the bottom edge of the suspensions main support with brakes off level ground full air psi Maxair 40 early prior to x mark on suspension was 5-1/4 later version was 4-7/8 think you have the AL or AL2 hope this helps.Thank you for real help. will check it all tomorrow. Think I will still have to replace control valve, but at least I know where to set it.AFTER I replace the radiator.And you can show off if you want. Its good to know what i should look for Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/27253-air-suspension-question/#findComment-137753 Share on other sites More sharing options...
staxx Posted September 15, 2012 Share Posted September 15, 2012 I will try to get a pic of something in the shop next week for ya while you adjust valve check all your u-joints and yokes make sure the yoke nut at trans or any others have not loosed up this will cause vibration also. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/27253-air-suspension-question/#findComment-137795 Share on other sites More sharing options...
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