Exhaust pipe flex cracked, repair now or can it wait.
Discussion in 'Experienced Truckers' Advice' started by AFC, Jul 23, 2025.
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Sold by the foot at parts houses.
Their are two types of flex pipe sold.
Stainless steel is the better of the two it does not rust .
But it aint cheap either
Myself I always used the red Locktite muffler tape on all joints.
A good chop saw makes this an easy fit .....
Watch your hands this stuff is sharp ..Last edited: Jul 24, 2025
AFC and Rideandrepair Thank this. -
Doesn’t look like a standard 5” flex pipe. It’s specific to the engine. Looks like its rotted/broken at the flange.
AModelCat and Big Road Skateboard Thank this. -
I'd be fixing that ASAP those fumes are nasty and will make you sick.
cke, BoostedTeg, Rideandrepair and 2 others Thank this. -
That’s not standard flex pipe. It’s fluted on both ends and made to go in that spot.cke, AModelCat, Big Road Skateboard and 1 other person Thank this.
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I remember those breaking early on in the day, and had to put up with it. Detroit fumes were the worst. I kept a couple of those clamps in my tool box just for that reason. Diesel fumes do more than make you sick, they can kill you,,
rollin coal, Rideandrepair, AFC and 1 other person Thank this. -
I wouldn't trust a used flex pipe. It's a wear part. $500 is a cheap truck part!
Last edited: Jul 24, 2025
AModelCat, dosgatos, ElmerFudpucker and 3 others Thank this. -
True, but one could cut out the flex and use new flex with band clamps (like the one in the pic) on each end. Or have a shop weld on new flex. Have a Toyota that had flex after the manifold pipe, all connected as one piece to the converter. New part was $1,500 discounted and I did not want to buy an aftermarket converter. Shop installed a new section for about $150. Interesting how the exhaust sound changed after that, much louder, and the section replaced was only about 6-8 inches long.Rideandrepair Thanks this.
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Well $500 for the part, have the dealer put it on.
If you have a road side inspection, you’re screwed, it is an OOS order and a service call or a tow. They will not let you drive it.Rideandrepair and AFC Thank this. -
No way!! Come on it’s only 2 clamps. half hr job max. Tap it a bit with a hammer as you tighten it up. Re check it hot. Buy a steak dinner, pair of shoes, and a case of beer with the labor money saved.ElmerFudpucker Thanks this.
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