Notices
1957 - 1960 F100 & Larger F-Series Trucks Discuss the Box Style Ford Trucks

Overdrive box

Thread Tools
 
Search this Thread
 
Old Jan 25, 2021 | 01:31 PM
  #1  
Red60's Avatar
Red60
Thread Starter
|
Cargo Master
5 Year Member
Liked
Loved
Joined: Dec 2019
Posts: 2,818
Likes: 375
Overdrive box

Does anyone have overdrive separate from the transmission? I have 4:56 gears (3000RPM @60MPH) and am interested in a simple overdrive to drop RPM’s at cruise, but I do not have room at the back of my transmission due to the transfer case. Best case would be a 1:1 switch 2:1 after the transfer case to the rear wheels. Web search has not been fruitful, most OD are on the trans output and 1.2:1.
 
Reply
Old Jan 25, 2021 | 03:06 PM
  #2  
85e150's Avatar
85e150
Super Moderator
20 Year Member
Community Builder
Liked
Community Favorite
Joined: Apr 2004
Posts: 34,472
Likes: 2,799
Club FTE Gold Member
Nothing easy or simple.

You aren't going to find 2:1, or a .50 OD either.

If you have the OEM engine and transmission, your bell to transmission pattern is the old square pattern. You might be able to find a way around that with a Ranger OD. But those are now discontinued as well, so you'd have to find a used one. Info and a recent conversion story:

https://high-impact.net/rangeroverdrive

https://www.ford-trucks.com/forums/1...ver-drive.html

Keep in mind this moves everything back, so you need to fiddle with all your mounts and get your driveshafts shortened/lengthened.



 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Niwrek
1973 - 1979 F-100 & Larger F-Series Trucks
2
Apr 24, 2016 11:46 PM
dentvet
Clutch, Transmission, Differential, Axle & Transfer Case
5
Mar 16, 2008 09:46 AM
kalsc
1999 - 2003 7.3L Power Stroke Diesel
9
Aug 14, 2006 11:58 PM
76 F-150 390FE
Clutch, Transmission, Differential, Axle & Transfer Case
8
Jan 17, 2006 02:03 PM




All times are GMT -5. The time now is 10:51 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE