Moparmike Posted June 10, 2019 Share Posted June 10, 2019 I hope I spelled it correctly Anyone have a idea of the cost to replace the unit..my springs are in great shape rubber pads look great but guessing the rest needs to be replaced..any help would be appreciated Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/ Share on other sites More sharing options...
j hancock Posted June 12, 2019 Share Posted June 12, 2019 Initial cost is about $3,000.00 plus shipping for an aftermarket piece. How much can you do? Don't know what a shop might charge. https://www.stengelbros.net/product.asp?gclid=EAIaIQobChMIn9yytPnj4gIVB_5kCh1C7AsGEAkYASABEgKcxfD_BwE&itemid=7211 Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425115 Share on other sites More sharing options...
terry Posted June 12, 2019 Share Posted June 12, 2019 tractor or dump a lot of labor between the two. terry Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425117 Share on other sites More sharing options...
Moparmike Posted June 12, 2019 Author Share Posted June 12, 2019 Dump truck Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425123 Share on other sites More sharing options...
terry Posted June 12, 2019 Share Posted June 12, 2019 10 minutes ago, Moparmike said: Dump truck I don't know if the one j hancock has there is the multi piece one where you cut the old out and install new one in pieces. if your replacement is a one piece one, you have to set dump box off, cut rear hinge off remove rear crossmembers and loosen front ones spread frame and slide tandems out, then take it apart. It's a whole bunch of heavy work!! terry Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425125 Share on other sites More sharing options...
fjh Posted June 12, 2019 Share Posted June 12, 2019 The post Hancock left is the way to go time wise for a dump or mixer application by far! Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425131 Share on other sites More sharing options...
Moparmike Posted June 12, 2019 Author Share Posted June 12, 2019 Just got off the phone with a shop recommended by local mack dealership 1 to 2 days most time 1 day 5/6 out the door. Well looks like I have to hit the work hard to get it done Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425132 Share on other sites More sharing options...
terry Posted June 13, 2019 Share Posted June 13, 2019 20 hours ago, Moparmike said: Just got off the phone with a shop recommended by local mack dealership 1 to 2 days most time 1 day 5/6 out the door. Well looks like I have to hit the work hard to get it done So did they give you a solid estimate? terry Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425200 Share on other sites More sharing options...
Rob Posted June 13, 2019 Share Posted June 13, 2019 Last summer I installed one of the multi piece Stengle Bros. pieces on a garbage, (rolloff) truck. If you can stand the price, it is the one to use citing what has been stated already. Not a hard job, but heavy. 1 Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425204 Share on other sites More sharing options...
Moparmike Posted June 13, 2019 Author Share Posted June 13, 2019 8 hours ago, terry said: So did they give you a solid estimate? terry 5 to 6 thousand depending on what's good on my stuff springs my be in good shape Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425230 Share on other sites More sharing options...
Moparmike Posted June 13, 2019 Author Share Posted June 13, 2019 7 hours ago, Rob said: Last summer I installed one of the multi piece Stengle Bros. pieces on a garbage, (rolloff) truck. If you can stand the price, it is the one to use citing what has been stated already. Not a hard job, but heavy. Think that's the 1 he use just cut old out install new no frame spreading what he said 1 Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425231 Share on other sites More sharing options...
JoeH Posted June 14, 2019 Share Posted June 14, 2019 On 6/10/2019 at 11:37 AM, Moparmike said: I hope I spelled it correctly Anyone have a idea of the cost to replace the unit..my springs are in great shape rubber pads look great but guessing the rest needs to be replaced..any help would be appreciated You're guessing the rest needs to be replaced? Why? What's broken? Trunnion bar? Trunnion cross member between the frames? Trunnion tower? Not enough info! Sounds like we might be telling you to do more than you replay need to! Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425277 Share on other sites More sharing options...
JoeH Posted June 14, 2019 Share Posted June 14, 2019 The trunnion bar on our 1980 dm686sx broke years ago, got it off the ground and dropped old one out, new one in and we were good to go! You must have really stressed the truck if you broke the trunnion tower or cross member... Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425279 Share on other sites More sharing options...
terry Posted June 14, 2019 Share Posted June 14, 2019 3 hours ago, JoeH said: The trunnion bar on our 1980 dm686sx broke years ago, got it off the ground and dropped old one out, new one in and we were good to go! You must have really stressed the truck if you broke the trunnion tower or cross member... I would guess maybe the tower rotted out, they will rust out where the tower sides come down to the trunnion. terry Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425284 Share on other sites More sharing options...
JoeH Posted June 14, 2019 Share Posted June 14, 2019 My trucks never see road salt, but it's hard to imagine the truck frame outlasting those towers due to rust. Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425285 Share on other sites More sharing options...
Rob Posted June 14, 2019 Share Posted June 14, 2019 Speaking of the trunion: https://www.ebay.com/itm/Mack-Trunnion-Stand-Square-Bar-3-5-339-348/123802211776?epid=27027417267&hash=item1cd32fd5c0:g:SDAAAOSwsGpcI5Oq Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425286 Share on other sites More sharing options...
Mack Technician Posted June 14, 2019 Share Posted June 14, 2019 (edited) We’ve accomplished some pretty miserable trunnion removals. Dealership only installed OEM. If your willing to remove some members(or a pusher), pop one side lose on every member up to transmission, and manipulate the trunnion toward chassis center, and you have enough hydraulics, you’ll pop that sucker out with pintle plate and hinge in place. www.diaglebrothers.com vends a member our dealership designed in conjunction with their fabricators. It’s a member that anchors the inner tower to the outside and inside of the frame rail with two additional flanges. Once installed you can’t lose a trunnion unless you find a way to shear a tube. Made for Quads and Michigan trains. Edited June 15, 2019 by Mack Technician Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425291 Share on other sites More sharing options...
theakerstwo Posted June 15, 2019 Share Posted June 15, 2019 On one of mine I paid 2100. to my door and 2000 to have Tulsa auto spring install in a dump truck.I think that was ok.This was the one from stengle bros which is a drop in.The mack dealer here sells some ,like it also. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425342 Share on other sites More sharing options...
Moparmike Posted June 17, 2019 Author Share Posted June 17, 2019 Mines is cracked around the weld in the towers on both sides that's all I see wrong all other parts look great Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425510 Share on other sites More sharing options...
terry Posted June 17, 2019 Share Posted June 17, 2019 1 hour ago, Moparmike said: Mines is cracked around the weld in the towers on both sides that's all I see wrong all other parts look great Is something a GOOD welder can grind out and reweld? terry Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425515 Share on other sites More sharing options...
Moparmike Posted June 17, 2019 Author Share Posted June 17, 2019 I've had it done its holding ok but I'm not a big fan of it cause it's hard to get in there and weld it right But I've had it welded to make it pay for the work itself Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425518 Share on other sites More sharing options...
Moparmike Posted June 17, 2019 Author Share Posted June 17, 2019 I'll try to get a picture of it today Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425519 Share on other sites More sharing options...
JoeH Posted June 17, 2019 Share Posted June 17, 2019 That I would replace. Hard to keep cracks from spreading. Some of the metal used in there is 1/2 inch thick. Your welds will need to be at least as thick to bridge the two pieces being joined back together. But the crack is in there and it's just a matter of time til it spreads. Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425521 Share on other sites More sharing options...
terry Posted June 17, 2019 Share Posted June 17, 2019 Don't know if you have a slow season, but welding might do till you have time to tear down. terry Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425528 Share on other sites More sharing options...
Moparmike Posted June 17, 2019 Author Share Posted June 17, 2019 32 minutes ago, terry said: Don't know if you have a slow season, but welding might do till you have time to tear down. terry Yes slow season is usually around December I've been keeping a eye on it since I had it welded and plan to continue until it pays for itself May just order the unit and have it ready and waiting till bad weather days shop says 2 days top but 1 most the time 1 Quote Link to comment https://www.bigmacktrucks.com/topic/57620-rear-trunnion-replacement-cost/#findComment-425531 Share on other sites More sharing options...
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