vansite89 Posted April 6, 2018 Share Posted April 6, 2018 trunnion with 58s has about a half inch of vertical play on the passenger side. is it to late to be rebushed? Quote Link to comment https://www.bigmacktrucks.com/topic/53028-trunnion-replacement/ Share on other sites More sharing options...
MACKS Posted April 6, 2018 Share Posted April 6, 2018 You may have to replace the bar and saddles also.. Quote Link to comment https://www.bigmacktrucks.com/topic/53028-trunnion-replacement/#findComment-396014 Share on other sites More sharing options...
Mack Technician Posted April 17, 2018 Share Posted April 17, 2018 Convert it to neoprene. Quote Link to comment https://www.bigmacktrucks.com/topic/53028-trunnion-replacement/#findComment-396902 Share on other sites More sharing options...
Rob Posted April 17, 2018 Share Posted April 17, 2018 I've never understood why people let things get that bad. Much more expensive to repair when this far gone. 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/53028-trunnion-replacement/#findComment-396916 Share on other sites More sharing options...
fjh Posted April 17, 2018 Share Posted April 17, 2018 6 hours ago, Mack Technician said: Convert it to neoprene. Yup Agree with this statement your likley going to have to replace all of it, you may be wise to go neoprene! the grease is a good set up (if looked after) Meaning you jack the truck up take the weight off the saddles and grease it! greasing with out jacking it up , for the most part your just keeping the dirt out. Quote Link to comment https://www.bigmacktrucks.com/topic/53028-trunnion-replacement/#findComment-396920 Share on other sites More sharing options...
vansite89 Posted May 29, 2018 Author Share Posted May 29, 2018 the worn trunnion in this truck wasnt mentioned when we bought it... Quote Link to comment https://www.bigmacktrucks.com/topic/53028-trunnion-replacement/#findComment-399629 Share on other sites More sharing options...
gxbxc Posted May 29, 2018 Share Posted May 29, 2018 back in the eighties are shop replaced the trunions etc, on almost 20 trucks in our fleet.And I can tell you I am tired just thinking about all the work,think I had better take a nap so I can finish wrighting this 1 Quote Link to comment https://www.bigmacktrucks.com/topic/53028-trunnion-replacement/#findComment-399634 Share on other sites More sharing options...
terry Posted May 29, 2018 Share Posted May 29, 2018 7 hours ago, gxbxc said: back in the eighties are shop replaced the trunions etc, on almost 20 trucks in our fleet.And I can tell you I am tired just thinking about all the work,think I had better take a nap so I can finish wrighting this makes you glad you were a younger man when you tackled that!! Quote Link to comment https://www.bigmacktrucks.com/topic/53028-trunnion-replacement/#findComment-399642 Share on other sites More sharing options...
6368 Posted May 30, 2018 Share Posted May 30, 2018 On 4/17/2018 at 2:55 AM, Mack Technician said: Convert it to neoprene. Tell us more... never heard of this option. Quote Link to comment https://www.bigmacktrucks.com/topic/53028-trunnion-replacement/#findComment-399666 Share on other sites More sharing options...
Mack Technician Posted May 30, 2018 Share Posted May 30, 2018 (edited) Buy a 2 piece saddle, push a neoprene center onto existing trunnion, center it, weld the standard (otherwise bolted on) retainer ring on end of trunnion stub and torque saddle down. Suspension was designed with this secondary repair in mind. It is not a cobble job. The retaining ring and two piece saddle are both the OEM components you would use on a standard rubber center. FJH is a dealer and they apparently do it, we did it as well at our dealership. We also fabricated an indestructible trunnion brace. It flanges the outside of the Frame, uses the same trunnion anchor bolts and welds on to trunnion face. Once installed you can’t crack a trunnion, maybe rust through eventually. You would break the frame before trunnion. We designed it for Michigan trains with a local fabrication shop. Edited May 30, 2018 by Mack Technician 1 Quote Link to comment https://www.bigmacktrucks.com/topic/53028-trunnion-replacement/#findComment-399675 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.