I’m looking for some advice on choosing between a couple of 98 model 379s. This will be a 2nd truck and will be primary truck with my current FLD becoming a backup. I bought the FLD last year and is first truck I’ve ever owned.
1st one has a recently rebuilt Detroit 12.7 and a 9 speed transmission. It was a prior frac truck so miles are low on chassis although it’s taken some abuse. Has some cosmetic upgrades such as paint, new Al wheels, new exhaust. It’s a good 50’ er.
2nd one is a prior fleet truck that pulled a fuel tanker. Has a 3406 Cat but it has a 1.2million miles on motor and a 10 speed transmission. Pretty good shape overall and was very well maintained.
The truck with the 3406 has a bigger sleeper (48” flat top) so that’s a plus and it most likely led a much easier life.
Price difference is small enough to not be a consideration. What kind of life expectancy could get out of the 3406 with that mileage on it?
Tale of 2 trucks
Discussion in 'Peterbilt Forum' started by midcon, May 11, 2021.
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I’d pull oil samples from both. CAT can run lab oil samples.
NavigatorWife and midcon Thank this. -
The frack truck most likely has low miles and high hours. Lots of idling or running a PTO.
Bean Jr., NavigatorWife and midcon Thank this. -
Bean Jr. and NavigatorWife Thank this.
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Is there paperwork for the rebuild?midcon, Bean Jr. and NavigatorWife Thank this. -
Thats a tough one at first glance. However, almost every frac truck ive seen has been beat to #### on those rough back roads and typically have worn...everything, shocks bearings, joints ect. Plus the PTO will have very VERY high hours compared to the fuel truck and seeing as i have hauled oil loads that were full of parafin and basically goo coming out its likely been used to suck up some pretty sketchy stuff that would put a lot of strain on it. Not to mention if it did a lot of H2S loads that stuff gets into the intakes and i have seen it rot the insides of the enginesm
It may be a solid truck but i would always be leery of anything post oilfield. That said get an oil check, blowby, and dyno on both. But im leaning towards the 3406 fuel truck as likely being the healthier truck overall. -
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