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FED 387 · 03-11-2014, 09:05 PM

also forgot to tell you DO NOT put one of those chips in hypermax etc.---that engine has so much power it will drive right thru the trans and burn up the clutches especially if you are towing-- if you have a 3:73 rear keep it under 2000 rpm you get better mileage over 2000 rpm it kills the mileage

03-11-2014, 09:05 PM	#4
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,349 Likes: 328 Liked 280 Times in 150 Posts	Re: '99 - '00 F250 7.3 Powerstroke also forgot to tell you DO NOT put one of those chips in hypermax etc.---that engine has so much power it will drive right thru the trans and burn up the clutches especially if you are towing-- if you have a 3:73 rear keep it under 2000 rpm you get better mileage over 2000 rpm it kills the mileage