66rmack Posted September 11, 2016 Share Posted September 11, 2016 What kind of spring setup is this? As always thanks for the info /wisdom. Sorry for all the ?'s . I'm just a noob trying to learn all I can. Quote Link to comment https://www.bigmacktrucks.com/topic/46812-rear-springs/ Share on other sites More sharing options...
Superdog Posted September 11, 2016 Share Posted September 11, 2016 I don't know what the proper Mack # is for it,but I've always heard it called the 3 spring Taperleaf suspension. Dad had an early version of it on his '80 Cruiseliner,they used 4 large bolts instead of U bolts,kept breaking the washers under the head of the bolts. Lightweight and rode better than our camelbacks . Quote Link to comment https://www.bigmacktrucks.com/topic/46812-rear-springs/#findComment-345408 Share on other sites More sharing options...
mrgumby Posted September 11, 2016 Share Posted September 11, 2016 Quote Link to comment https://www.bigmacktrucks.com/topic/46812-rear-springs/#findComment-345412 Share on other sites More sharing options...
mrgumby Posted September 11, 2016 Share Posted September 11, 2016 Mack- ST34 Taper Leaf Spring Rear Suspension Quote Link to comment https://www.bigmacktrucks.com/topic/46812-rear-springs/#findComment-345413 Share on other sites More sharing options...
66rmack Posted September 11, 2016 Author Share Posted September 11, 2016 Thank you good sir's. So it might be best to leave it there on a truck that is more play than work. The trunion is cracked and the boss got a cut off with a hd one and 44k camelbacks. We were going to just swap the whole set up onto this truck but if the taperleaf is a better ride then we might just swap the trunion and reuse the taperleaf. Quote Link to comment https://www.bigmacktrucks.com/topic/46812-rear-springs/#findComment-345414 Share on other sites More sharing options...
terry Posted September 12, 2016 Share Posted September 12, 2016 15 minutes ago, 66rmack said: Thank you good sir's. So it might be best to leave it there on a truck that is more play than work. The trunion is cracked and the boss got a cut off with a hd one and 44k camelbacks. We were going to just swap the whole set up onto this truck but if the taperleaf is a better ride then we might just swap the trunion and reuse the taperleaf. Is the truck a work or play truck? I have seen alot of trunnions welded or plated to repair them. Quote Link to comment https://www.bigmacktrucks.com/topic/46812-rear-springs/#findComment-345417 Share on other sites More sharing options...
blackdog2 Posted September 12, 2016 Share Posted September 12, 2016 We had bad experience with them so did other gas company's with broken leafs Amoco had a spring brake and catapult the truck over with trailer and alignment problems with eccentric anchor pins we kept them on T.B.A trailers . Quote Ed Link to comment https://www.bigmacktrucks.com/topic/46812-rear-springs/#findComment-345418 Share on other sites More sharing options...
66rmack Posted September 12, 2016 Author Share Posted September 12, 2016 10 hours ago, terry said: Is the truck a work or play truck? I have seen alot of trunnions welded or plated to repair them. It's a play truck more or less but we have a good trunion so we may as well replace it. Quote Link to comment https://www.bigmacktrucks.com/topic/46812-rear-springs/#findComment-345454 Share on other sites More sharing options...
66rmack Posted September 12, 2016 Author Share Posted September 12, 2016 10 hours ago, blackdog2 said: We had bad experience with them so did other gas company's with broken leafs Amoco had a spring brake and catapult the truck over with trailer and alignment problems with eccentric anchor pins we kept them on T.B.A trailers . Maybe we will just swap it over to the trusty camelbacks and not worry about the taperleaf. With a air ride cab the ride shouldn't be too bad? Quote Link to comment https://www.bigmacktrucks.com/topic/46812-rear-springs/#findComment-345455 Share on other sites More sharing options...
terry Posted September 12, 2016 Share Posted September 12, 2016 A 44.000 camelback is going to be ALOT rougher ride than that taperleaf. terry 2 Quote Link to comment https://www.bigmacktrucks.com/topic/46812-rear-springs/#findComment-345456 Share on other sites More sharing options...
66rmack Posted September 12, 2016 Author Share Posted September 12, 2016 11 hours ago, terry said: A 44.000 camelback is going to be ALOT rougher ride than that taperleaf. terry For the miles the truck will see, ride prob isn't a big deal. The truck is in the works to be a parade/back up hauler only for when he goes out. I would just hate to have problems with the taper leaf. Quote Link to comment https://www.bigmacktrucks.com/topic/46812-rear-springs/#findComment-345503 Share on other sites More sharing options...
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