A few auto tranny questions
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Senior User
Joined: Feb 2006
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From: Texas
A few auto tranny questions
I am buying a 2000 F250 with auto tranny. It seems to shift ok, no SES light, fluid smelled ok. Only thing is it has 210,000 miles. Truck is all stock, no chip, original exhaust and intake. I think this truck was well cared for. If I am on top of fluid changes, and maybe install a 6.0 tranny cooler, and a trans temp gauge, is it realistic to get 300,000 or more from the tranny? I will not be doing much towing. Any other tips on how to get the most out of the tranny?
Post Fiend
Joined: Jun 2004
Posts: 9,293
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From: Parker, CO
The 300,000 mile transmission is a rare bird.
Are you positive the trans hasn't been rebuilt already?
As for longevity, it seems the stock trans lasts longest when you leave the truck absolutely bone stock, don't tow heavy with it, and put a lot of highway miles on it. At any rate, it's always a gamble. Keep servicing and maintaining the engine and trans, and cross your fingers when it comes to the transmission.
Are you positive the trans hasn't been rebuilt already?
As for longevity, it seems the stock trans lasts longest when you leave the truck absolutely bone stock, don't tow heavy with it, and put a lot of highway miles on it. At any rate, it's always a gamble. Keep servicing and maintaining the engine and trans, and cross your fingers when it comes to the transmission.
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From: Texas
Ok, thanks. The deal was so good, I have "built in" the cost of tranny just in case. It could have been replaced. The original owner had it till Dec. 08, he worked at a dealership in Colorado. Second owner had it for a little over a year, and wants a car for better mileage. Are there any pointers that might show if tranny was replaced?
Lead Driver
Joined: Jun 2003
Posts: 8,298
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From: Damon (South East Texas)
Check the build date on the trans tag. It would most likely be different from the truck build date if it has been replaced. IIRC, usually the trans and truck build dates are within a month of each other. That still wouldn't tell you if the original had been rebuilt though, unless there was some sort of stamp or tag on it.
Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
In 2000 those trucks were selling so fast the trans build date was usually the same DAY as the truck build date! The assembly line at KTP (where the trucks are built) would be assembling transmissions to engines where the trans was still warm from it's final test at the transmission plant.
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Cargo Master
Joined: Mar 2006
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From: Bend Oregon
since the original owner worked at the dealer is it possible he would have replaced the tranny there? (if it was replaced), would an OASIS show this?
I think an oasis would be a good idea at any rate.
Good luck
I think an oasis would be a good idea at any rate.
Good luck
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Post Fiend
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From: Dallas-Ft. Worth
In 2000 those trucks were selling so fast the trans build date was usually the same DAY as the truck build date! The assembly line at KTP (where the trucks are built) would be assembling transmissions to engines where the trans was still warm from it's final test at the transmission plant.
Posting Guru
Joined: Feb 2004
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From: IOWA
Glad you have the cost of a new tranny built in. But being bone stock, I would think it'd go for quite a while yet. I bought my truck at 103k miles and put on another 120k or so with mods and towing and working hard before it let go. You're on the right track with the tranny cooler and gauges.
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I have an early 99 with the 4R100. This tranny has 232,000 miles on it. The previous owner stated no work was done on the tranny nor was it rebuilt. I bought the truck used. When I first completed the trans service, I had Balckstone do the analysis.
The readings were at cautionary levels. Since then, I have completed 3 additional tranny services which included the filter and a magafine filter which in my case, went 20,000 miles. The fluid readings have dropped considerably and I'm now on a 30,000/40,000 fluid change interval. I now run Mercon V. Maintenance is the key. I would service the tranny, 20 qts mercon V, a Magafine filter and an interal filter. Send an oil sample to whomever and see the results and recommendations. Then go from there. My first sample I estimated had 30,000 + on the oil, then I went 9911, 11,514 and 20,512 miles.
The iron content dropped from 289 to 72, Copper dropped from 95 to 24,
Silcon dropped from 24 to 9...I tow a two horse trailer and a cabover camper serveral times a year. Hope this helps in your decision. I think you could get 300,000 out of a trans with proper maintenance. Fluid and filters are cheap.
The readings were at cautionary levels. Since then, I have completed 3 additional tranny services which included the filter and a magafine filter which in my case, went 20,000 miles. The fluid readings have dropped considerably and I'm now on a 30,000/40,000 fluid change interval. I now run Mercon V. Maintenance is the key. I would service the tranny, 20 qts mercon V, a Magafine filter and an interal filter. Send an oil sample to whomever and see the results and recommendations. Then go from there. My first sample I estimated had 30,000 + on the oil, then I went 9911, 11,514 and 20,512 miles.
The iron content dropped from 289 to 72, Copper dropped from 95 to 24,
Silcon dropped from 24 to 9...I tow a two horse trailer and a cabover camper serveral times a year. Hope this helps in your decision. I think you could get 300,000 out of a trans with proper maintenance. Fluid and filters are cheap.
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