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I just bought a 99` F-150 Supercab Lariat with 139000 miles on it, two owners, original transmission, I couldn't tell the difference between my truck shifting and any of the 03's i test drove. So I would say that it should last quite a bit farther than 150k unless you are really pushing the limits between your 30k flushes.
Originally posted by wolfdog1 I just bought a 99` F-150 Supercab Lariat with 139000 miles on it, two owners, original transmission, I couldn't tell the difference between my truck shifting and any of the 03's i test drove. So I would say that it should last quite a bit farther than 150k unless you are really pushing the limits between your 30k flushes.
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Thanks for the reassurance. I just got this vehicle about a month ago, and with 77K on the clock, plus I'm a shifty guy (i'm not a big fan of auto's), I was concerned about the life of the 4r70w in my S-crew.
If it weren't for my wife, I'd would be in manual tranny now, dang women....
I just worked on a 1997 F150 with the 4R70W and 370,000 kms (about ummm 230,000 miles) on it. It is used a bush truck and gets lots of hard use. I dont remember ever seeing it in the shop for transmission problems.
Well I've had the truck in my possesion for 40k miles, from 111k back I don't know the service history. Judging from all I've fixed, all they did was change the oil on time and not hot rod it, which is better than most I guess.
But it's never left me on the side of the road, the V8 is still very healthy and hopefully after I get the tranny fluid/filter changed it'll be okay. If not, it's still cheaper to install a new transmission than buy a new truck.
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