Cotreker Posted March 2, 2021 Report Share Posted March 2, 2021 I would like to change my rear end air bag height by 2 inches. Can I do so safely and easily? My A/C trips over height sensor at a tunnel I70 but only going east bound. Will my drive line still be within spec? Quote Volvo 670 / 2006 10-Speed ATV's & Sleds 2017 Host Mammoth Slide-In Camper on Deck Jackalopee Build article published here Link to comment Share on other sites More sharing options...
rickeieio Posted March 2, 2021 Report Share Posted March 2, 2021 Did you measure your height to be sure it's your truck and not the highway sensor? I know, silly question, but it's the basics...... Quote KW T-680, POPEMOBILE Newmar X-Aire, VATICAN Lots of old motorcycles, Moto Guzzi Griso and Spyder F3 currently in the front row Young enough to play in the dirt as a retired farmer. contact me at rickeieio1@comcast.net Link to comment Share on other sites More sharing options...
rpsinc Posted March 2, 2021 Report Share Posted March 2, 2021 45 minutes ago, Cotreker said: I would like to change my rear end air bag height by 2 inches You know as we get older we get shorter. I'm sure in time you will get that 2" just naturally. LOL I just couldnt help myself. Sorry. Quote Marcel Link to comment Share on other sites More sharing options...
Cotreker Posted March 2, 2021 Author Report Share Posted March 2, 2021 2 hours ago, rickeieio said: Did you measure your height to be sure it's your truck and not the highway sensor? I know, silly question, but it's the basics...... It only trips going East and 50% of time it does not trip. Have measured at 13' 4". Quote Volvo 670 / 2006 10-Speed ATV's & Sleds 2017 Host Mammoth Slide-In Camper on Deck Jackalopee Build article published here Link to comment Share on other sites More sharing options...
Parrformance Posted March 2, 2021 Report Share Posted March 2, 2021 I have adjusted my rear level valve to the other holes in the lower bracket, with no ill effects. I currently have the valve arm in the centermost hole. Others on the forum, may opine that this will change the driveshaft angle to a point the carrier bearing will need to be adjusted. I suspect a minor adjustment from hole to hole would likely keep the angles within spec, but I do not know this for sure. Tire pressure may also lower the truck enough to bring your truck overall height a little as well. My thought is a fully loaded 53 foot trailer would move the rear suspension up and down as much as moving the level arm one hole or so. Quote 2006 Volvo VNL 780, " Arvey" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift 2003 Jeep Wrangler Rubicon 2010 Forest River Coachman Freedom Express 280RLS Jackalopee Link to comment Share on other sites More sharing options...
Cotreker Posted March 2, 2021 Author Report Share Posted March 2, 2021 Never touched the leveling arm. Is there one for each axle or only one? Picture would be great or come by it is 60 today need this really bad the east bound guy knows me by name. Quote Volvo 670 / 2006 10-Speed ATV's & Sleds 2017 Host Mammoth Slide-In Camper on Deck Jackalopee Build article published here Link to comment Share on other sites More sharing options...
COFLTravler Posted March 2, 2021 Report Share Posted March 2, 2021 1 hour ago, Cotreker said: Never touched the leveling arm. Is there one for each axle or only one? Picture would be great or come by it is 60 today need this really bad the east bound guy knows me by name. My 780 has only one for all the bags.....I know some earlier Volvos had more that one valve. Here is a pic of the holes...sorry about the mud - dirt roads in the mountains... Mark Quote 2014 HDT Volvo 780 "Baby Bird"2016 Smart Car "Baby Bird Turd" - on the back2020 Momentum 376THSWe're both proud USAF Retirees... Link to comment Share on other sites More sharing options...
Parrformance Posted March 2, 2021 Report Share Posted March 2, 2021 Same with my 780, one nut move to a lower hole, May get you low enough to not set the height sensor. Quote 2006 Volvo VNL 780, " Arvey" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift 2003 Jeep Wrangler Rubicon 2010 Forest River Coachman Freedom Express 280RLS Jackalopee Link to comment Share on other sites More sharing options...
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