I purchased this used tranny eaton fuller 13speed RTOF-14813 for my truck. My truck is a 1999 freightliner fld120 it has a detroit 60 series 12.7 470hp with 10 speed regular with 3.55 gear ratios and 295/75/22.5 tires.
The mechanic told me this 13 speed is not compatible with my truck and if I install it my truck will top out at 55mph. I made the big mistake of purchasing the 13 speed without doing any research about compatibility for my truck. Truly my mistake I accept it. I'm stuck with this 13 speed as I cannot return it.
My question if anyone can help is:
Does anyone know what year and make model truck this 13spd RTOF-14813 will fit nicely?? In what application will this tranny work great? I'm having a hard time trying to figure out what truck this tranny will fit. I already tried to go online to eaton fulller website and could not find any information on this tranny.
I thank anyone in advance that can give me any information on this tranny. thanks
tony.
eaton fuller 13 speed
Discussion in 'Trucks [ Eighteen Wheelers ]' started by tonher, Aug 20, 2014.
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I would call an actual transmission shop and ask them about your situation. try www.transaxle.com. I was told all overdrive trannys have very close to the same final gear ratio,so it shouldn't matter...unless its a direct drive.
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that trans shouldn't be a problem as far as gearing. it has a .73 overdrive
the only problem i could see depends on your engine hp / torque as that trans is rated for 1400 ft lbs which depending how you drive could affect the durability.
back in the early 80's i had a shaker with a 3408 cat and the trans i had was 125/13 rated for 1200 ft lbs
had to rebuild the back half 3 times in the 4 years i owned it
.fuzzeymateo Thanks this. -
Your mechanic is correct that transmission has a .87 overdrive ratio. You need the later style RTLO 13 speed with a .73 overdrive.
Link to Eaton's transmission ratio chart:
http://www.roadranger.com/rr/ProductsServices/ProductsbyCategory/Transmissions/PCT_486870fuzzeymateo Thanks this. -
thanks guys for your help.... really helpful.. specially that webpage link for eaton fuller specs.
take care
Tony
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