Need transmission suggestions
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New User
Joined: Aug 2019
Posts: 23
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From: whangarei, New Zealand
Need transmission suggestions
I just bought a 2WD 1976 Ford F-150, Im also new to the old truck scene. The Truck has a Ford 360 Fe big block with C3 transmission. the tranny is shot and id like to upgrade to one with more that 3 gears and preferably a manual (doesn't have to be). Ive been doing research far ages now and cant find one thats not a C6, Ive heard that the FEs are hard to get trannys for? I don't know weather or not that true but from what I can find, it seems to be true. Any suggestions are very helpful.
Thanks
Thanks
Lead Driver
Joined: Jul 2011
Posts: 8,679
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From: On the Edge of the Desert
Your right, it is true.
You have a C6 currently. Another c6 would be the easiest replacement.
The reason why it's hard to get a different transmission for an FE is because 1976 was the last year of them. Way before 5 or 6 speed manuals were common place.
There are options for you, but none of them are cheap and easy.
You have a C6 currently. Another c6 would be the easiest replacement.
The reason why it's hard to get a different transmission for an FE is because 1976 was the last year of them. Way before 5 or 6 speed manuals were common place.
There are options for you, but none of them are cheap and easy.
Super Moderator
Joined: Apr 2004
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The 4 speeds were "granny gear" first gear, with 3 speed-like spacing for 2-3-4, and 4th was direct.
Adapting a newer 5 speed OD trans requires an adapter and some additional work for mounting and driveshaft. As indicated above, not cheap.
A recent discussion:
https://www.ford-trucks.com/forums/1...sion-swap.html
Adapting a newer 5 speed OD trans requires an adapter and some additional work for mounting and driveshaft. As indicated above, not cheap.
A recent discussion:
https://www.ford-trucks.com/forums/1...sion-swap.html
More Turbo
Joined: Mar 2019
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Also, do you plan on towing or hauling? My F100 has a stock 302 and has 2.75 rear gearing and it's highway rpm is pretty low for a non-OD transmission (C4), but it's not going to pull stumps out of the ground with the engine and gearing combo I have. It won't even spin the tires if I try. If you plan on towing or hauling I wouldn't go any lower (numerically) than 3.25 and that would be with a healthy engine at that.
Lead Driver
Joined: Jul 2011
Posts: 8,679
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From: On the Edge of the Desert
First off, you need to get a tachometer if you don't already have one.
55 mph should be somewhere around 2200rpm give or take. And that's not at all topping out.
It probably already has 3.25 or 3.00 gears. Both good ratios for all around driving.
What size tires do you have? Changing from 28s to 32s would make a big difference
55 mph should be somewhere around 2200rpm give or take. And that's not at all topping out.
It probably already has 3.25 or 3.00 gears. Both good ratios for all around driving.
What size tires do you have? Changing from 28s to 32s would make a big difference
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More Turbo
Joined: Oct 2006
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I swapped 3.00 axles/gears in to one of my 460/C6 Broncos (had 3.50's) with 33" tires. Absolutely love it, especially on the highway. Lots of torque with a 460, and converter slippage multiplies that. Drives really nice. I have another set of frt/rear 3.00 gears for 2nd Bronco with 460/NP435.
As good as an E4OD? No probably not but way less hassle/modification.
As good as an E4OD? No probably not but way less hassle/modification.
Last edited by BLK79; Aug 16, 2019 at 11:03 AM. Reason: added info
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