The truck is a 2009 Western Star 4900 daycab with a 14L detroit. I just recently bought the truck, i've put around 4k miles on it, and the cab noise is worse than anything I've ever driven. The truck has all new exhaust from the turbo back, 2 donaldson m100465 mufflers as well as cab mount bushings, zero leaks. At cruise the drone is brain rattling, i think its quieter on the outside than it is in the cab. I also drive an almost identical truck but with a c15 accert that is straight piped all the way out with short stacks and it is actually very quiet and comfortable to drive which is really the reason I bought this truck. I'm thinking of putting high flow mufflers on because it seems really stuffed up and maybe that's causing it to drone so bad?? The way they route the exhaust I don't have room for an other resonator. Any suggestions are appreciated.
Terrible cab drone
Discussion in 'Trucks [ Eighteen Wheelers ]' started by DLament, Jun 21, 2024.
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Actually I used this. Also get application roller, I without order 2 boxes to begin with or measure the areas of cab and sleeper. Before applying I would use rag and alcohol to wipe dust off for better adhesion. Takes a while taking panels apart, but definitely a noticeable difference.
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blairandgretchen Thanks this. -
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