Hey all. I just recently had my 10r80 transmission replaced. It was out of warranty so I had to pay out of pocket. It was replaced a little over a month ago. Well I bout a travel trailer and went to go pick it up and had some trans overheating issues. Turns out the dealership overfilled it by 2 qts and the dip stick was not seated/loose per a different dealership. My axle ratio is 3.31 and was wondering if anyone can let me know what they think about re gearing. Had a couple people (not ford owners) tell me they don’t recommend it. After I picked it up from the dealer they assured me the overfilling did not cause any damage. I know these 10r80 trans can be really picky about how much fluid you put in them. An help is appreciated. New here so go easy on me.

 

truck is 2020 f150 5.0

 

What year is your truck?
Engine?
Trailer weight?

It's impossible to answer without that information.

4X4 or 4X2?

If it's a 4X4 you have to regear both axles which doubles the cost. It might be cheaper to trade trucks. Or trade to a smaller travel trailer. But without more info it's impossible to say.

 

Truck is 4x4 dry trailer weight is 6200 lbs 2020 super crew

 

[QUOTE=marshallr;7757664]What year is your truck?
Engine?
Trailer weight?

It's impossible to answer without that information.

4X4 or 4X2?

If it's a 4X4 you have to regear both axles which doubles the cost. It might be cheaper to trade trucks. Or trade to a smaller travel trailer. But without more info it's impossible to say.[/QUOTE
Truck is 4x4 dry trailer weight is 6200 lbs 2020 super crew
]

 

In my model year, 3.31 was still standard with the regular Tow Package (53A option). Max Tow got the 3.55 (my truck had that added seperately). Without the 53A or 53C (Max Tow), the F150 was rated to tow 5000#. There has been a few minor upgrades in newer models but not that much. Standard hitch receiver is still rated at 500# tongue, 5000# tow weights WITHOUT a weight distribution hitch.
If you have the 53A or B, you shouldn’t need to change it per factory ratings.

BUT if you have decided to upgrade your axle ratio, jump straight to the 3:73, used in the HDPP, and now in the Max Tow 5.0. With 3 overdrives in the 10 speed, you won’t lose hardly any mpg non towing.

I tow in tow/haul mode and lock out the upper two overdrives (9&10) to lessen jump shifting on hills. Hottest my transmission got on my month long trip recently down the east & gulf coasts out to NM was 215F once, usually 210 or under. Granted my travel trailer was 4400# loaded when I started.

 

it definitely did better on flatter surfaces. I was on the interstate with lots of ups and downs, rolling hills and it got up to 230 degrees. Was thinking of adding after market trans cooler to see if that helps. Any issues after the re gear?

 

my temp got up to 225 rolling on the interstate going up and down rolling hills. Started getting the white steam like it was overheating. Once I picked it up from the dealer took the backroads and stayed on the flatter surfaces. The trans definitely did better without the hills. Stayed around the 210-215 range in temp. Thinking of adding a aftermarket trans cooler don’t know at this point.

 

Truck is 2020 F150 super crew 5.0 4x4

 

New to the ford fourm sorry if you keep getting the same reply couldn't find the reply button on the phone had to jump on computer. Temp on trans jumped to 220-230 on interstate with rolling hills. started getting white steaming smoke. After i picked up from dealer stuck to back roads and trans def liked it better stayed more at the 210-220 range in temp. Thinking of adding a new trans cooler to see if that helps. Not sure.