ChesterChop Posted March 17, 2022 Share Posted March 17, 2022 I have a Superliner with a single stack. I bought another Superliner as a parts truck that has dual exhaust. I want to add the second stack to the truck I run everyday . The parts truck didn't have the cross members that form an X between the two muffler mounts. I've seen them on some other Mack's with dual exhaust. Does anyone have dual stacks without the cross members? Am I going to need to get some? Quote Link to comment https://www.bigmacktrucks.com/topic/69391-dual-stacks/ Share on other sites More sharing options...
Hans Remmers Posted March 17, 2022 Share Posted March 17, 2022 I don't think they all had cross braces. The one on my 89 looks to be homemade. I don't think my family's 88 sleeper had them mounted behind the bunk, but one always shook and eventually broke the mount. There is also the option of running a single tie rod between the brackets as my MH has. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69391-dual-stacks/#findComment-492435 Share on other sites More sharing options...
mechohaulic Posted March 17, 2022 Share Posted March 17, 2022 wouldn't take a lot to make nice looking cross brace. heavy wall pipe ( 1 in ? ) with ends flatten out. drill hole both ends and bolt to some brackets. duals always look sharp. my concern is the added noise behind drive side. had a customer that demanded duals on a rented COE. dual set was installed . wasn't long after came back complaining too much noise in bunk . 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69391-dual-stacks/#findComment-492473 Share on other sites More sharing options...
mowerman Posted March 17, 2022 Share Posted March 17, 2022 thats funny shit ...i wonder if it was the exhaust noise or the stack vibrating????? bob Quote Link to comment https://www.bigmacktrucks.com/topic/69391-dual-stacks/#findComment-492482 Share on other sites More sharing options...
mechohaulic Posted March 18, 2022 Share Posted March 18, 2022 exhaust noise was the written complaint. main issue was the two team drivers thought their sh-t didn't stink. they were also the pair given one of the first 866 's on the road for trials. FL700. i'm being careful NOT to call it a prototype this time . LOL '' I still remember the day it came in on flat bed. front axle was back passed the fuel tanks. my "baby" was totaled and I WAS PIS-ED Quote Link to comment https://www.bigmacktrucks.com/topic/69391-dual-stacks/#findComment-492530 Share on other sites More sharing options...
mowerman Posted March 18, 2022 Share Posted March 18, 2022 10 four on the overqualified drivers we’ve got a whole line board of them over here too bad about the total…. Bob Quote Link to comment https://www.bigmacktrucks.com/topic/69391-dual-stacks/#findComment-492606 Share on other sites More sharing options...
mowerman Posted March 18, 2022 Share Posted March 18, 2022 As far as team drivers go I did a little of that back in 1990 didn’t care for it I had pretty good luck with most of the guys but they did hook me up with some real idiots sometimes Bob 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69391-dual-stacks/#findComment-492608 Share on other sites More sharing options...
Popular Post ChesterChop Posted March 19, 2022 Author Popular Post Share Posted March 19, 2022 I got it on there...along with my new bumper! I fired it up, blew a dead bird out and then some black Smoke. It didn't vibrate at all. The original one on the passenger side does a little. 3 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69391-dual-stacks/#findComment-492660 Share on other sites More sharing options...
Bbb1 Posted March 22, 2022 Share Posted March 22, 2022 Man that view looks phenomenal! And wish I had a dual stack setup very nice Quote Link to comment https://www.bigmacktrucks.com/topic/69391-dual-stacks/#findComment-492969 Share on other sites More sharing options...
ChesterChop Posted April 15, 2022 Author Share Posted April 15, 2022 Finally had time to get them bolted on. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/69391-dual-stacks/#findComment-495402 Share on other sites More sharing options...
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