Transmission Question
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
The answer to the question is yes, assuming you have an adequate transmission cooler.
However, the question you should have asked is if the truck, overall, can handle that load. The answer to that somewhat depends on the axle ratio. The '85 owners manual I have says that a 7.5L w/a C6 has a combined gross vehicle weight rating of:
To find out what axle ratio you have post a picture of the cert label on the door jamb and we can tell what it came out of the factory with. But, that might have been changed somewhere in the last quarter century. Do you have a tach on the truck? If so, what R's do you turn at 60 and what tires do you have on it?
However, the question you should have asked is if the truck, overall, can handle that load. The answer to that somewhat depends on the axle ratio. The '85 owners manual I have says that a 7.5L w/a C6 has a combined gross vehicle weight rating of:
- 12,000 with a 3.07 ratio
- 15,000 with a 3.54
- 18,500 w/a 4.10
To find out what axle ratio you have post a picture of the cert label on the door jamb and we can tell what it came out of the factory with. But, that might have been changed somewhere in the last quarter century. Do you have a tach on the truck? If so, what R's do you turn at 60 and what tires do you have on it?
Post Fiend
Joined: Jul 2004
Posts: 8,786
Likes: 28
From: Northern California
Just to add to Gary's excelent posting...
If the transmission is a Automatic overdrive, it is highly recommended to lock the transmission out of overdrive. Towing trailers with an Automatic overdrive, with the transmission IN overdrive tends to "fry" them.
We can tell you what transmission you have by the certification lable and if you have a C6 or AOD.
If the transmission is a Automatic overdrive, it is highly recommended to lock the transmission out of overdrive. Towing trailers with an Automatic overdrive, with the transmission IN overdrive tends to "fry" them.
We can tell you what transmission you have by the certification lable and if you have a C6 or AOD.
Post Fiend
Joined: Jul 2004
Posts: 8,786
Likes: 28
From: Northern California
Yes a F-250 could have a AOD, however you are right, they didn't put an AOD behind the 460.
So it's a C6.
So it's a C6.
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Trending Topics
Post Fiend
Joined: Jul 2004
Posts: 8,786
Likes: 28
From: Northern California
They also put the 3 speed column and, the Clark/Tremec 4-speed OD manuals in the F-250 as well, but not with the 460.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
4x4 with 3.00 gears? Even Ford knew that one wouldn't ...... go, so they probably didn't offer that. Let's see, OD would be 2:1. Boy, that would be good for economy!
Post Fiend
Joined: Jul 2004
Posts: 8,786
Likes: 28
From: Northern California
Ford was doing a lot of experimenting at this time, if I recall correctly, the 255 V8 and 232 V6 instantly springs to mind.
Old School Hot Rodder
Joined: Feb 2006
Posts: 6,472
Likes: 11
From: Exmore, VA
Archion got it close, our 5er is a 30ft long, gross weight 10,000 lbs. I pulled it quite a ways with Darth. Original setup was carbureted 460, C6 and 3.55 gears. I weighed the combination on a truck scale in Millersville, MD at 16,100 lbs with me in the truck and full fuel tanks.
Most recent weight on it with tanks pretty well empty came out to 5750 for the truck. FWIW, I could go up 7 mountains grade on PA 322W aproaching Centre Hall at 37 mph in 2nd. That was with 2 adults and 2 small kids and 1 large dog and trailer loaded for an extended stay (5 days).
Most recent weight on it with tanks pretty well empty came out to 5750 for the truck. FWIW, I could go up 7 mountains grade on PA 322W aproaching Centre Hall at 37 mph in 2nd. That was with 2 adults and 2 small kids and 1 large dog and trailer loaded for an extended stay (5 days).
Thread
Thread Starter
Forum
Replies
Last Post
Kev-F125
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
13
Mar 30, 2017 05:59 PM
bigwheelin
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
12
Jan 17, 2006 09:45 PM
DiegoMarla
Clutch, Transmission, Differential, Axle & Transfer Case
6
May 3, 2004 09:25 PM
64_f100_owner
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
3
Jan 17, 2004 11:55 PM
jdawg78
Clutch, Transmission, Differential, Axle & Transfer Case
2
May 20, 2002 12:00 AM