5 speed transmission
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Senior User
Joined: Dec 2005
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From: Sunfield,MI
5 speed transmission
Does ford make a 5-speed transmission that will bolt up to an FE block. I imagine i could make something work if i had an FE bellhousing right? any help is very....helpful.
Freshman User
Joined: Sep 2004
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From: Seattle, Wa
None of the new 5 speeds will bolt up but, there are some older trannies that will. There are 5 speeds that were made by both Clark and New Process that came behind FT's in med duty trucks. Are you looking for more gears for towing or an OD or ????
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Senior User
Joined: Dec 2005
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From: Sunfield,MI
Well the only tranny i have right now is the creeper 4 speed. I drive almost 200 miles to school so basically i am looking for a fifth gear to give me better mileage than the four speed i have now. I don't care if it is od or not, i'm desperate and looking for whatever i can find. If they made an OD that i could change the bellhousing on so it would fit my FE i would probably do that, otherwise....whatever i can find i guess.
5th Wheeling
Joined: Sep 2004
Posts: 35
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Per one of the other boards, there was an overdrive version of the truck top loader 4 speed. According to www.5speeds.com/toploader.html the OD version came mainly in 4WD Broncos. There are bells that would hook a top loader to an FE block. Problem might be finding one at a good price, Ford muscle car restorers might have most of them tucked away for putting non-OD passenger car top loaders behind a FE 427 in their Fairlane, etc.
Another way. Do you have any idea what rear axle gears you have? My guess is that you have something like 3.90, 4.11, or even 4.33 rear gears. Depending how low of a gear you have now, I'd look for a set of 3.08 to 3.5 rear gears that would fit your axle (or a complete axle with those gears in it). Changing would cut your highway revs a bunch.
Piper106
Another way. Do you have any idea what rear axle gears you have? My guess is that you have something like 3.90, 4.11, or even 4.33 rear gears. Depending how low of a gear you have now, I'd look for a set of 3.08 to 3.5 rear gears that would fit your axle (or a complete axle with those gears in it). Changing would cut your highway revs a bunch.
Piper106
Mountain Pass
Joined: Sep 2003
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From: Pulaski, NY
Tremec makes a couple of 5 speeds that can fit the FE. The TKO-500 or TKO-600 can be purchased to fit the toploader bolt pattern.
One issue I have found is that each website that I have checked into, performs a machining service that shortens the input shaft by 3/4" so it doesn't bottom out in the end of the crankshaft. These websites also only mention performing this conversion in cars, not trucks. I seem to remember that the truck bellhousing is about 3/4" longer (front to rear) than the car bellhousing, so what remains to be seen is if you can get by without the machining.
The other notable point is that the input shafts are 26 spline (but I have found some hints of 10 spline but nothing certain), so you may have to use a chevy clutch.
I plan on this same conversion in my Galaxie, and will be using the truck bellhousing. Don't hold your breath waiting for me to finish my project - my only goal is to get that car done before it's 50 (in 2016!)
One issue I have found is that each website that I have checked into, performs a machining service that shortens the input shaft by 3/4" so it doesn't bottom out in the end of the crankshaft. These websites also only mention performing this conversion in cars, not trucks. I seem to remember that the truck bellhousing is about 3/4" longer (front to rear) than the car bellhousing, so what remains to be seen is if you can get by without the machining.
The other notable point is that the input shafts are 26 spline (but I have found some hints of 10 spline but nothing certain), so you may have to use a chevy clutch.
I plan on this same conversion in my Galaxie, and will be using the truck bellhousing. Don't hold your breath waiting for me to finish my project - my only goal is to get that car done before it's 50 (in 2016!)
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Senior User
Joined: Dec 2005
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From: Sunfield,MI
Well thanks alot for the information freakazoid. I will have to look into tremec's transmissions. If i am unable to find a 5-speed i guess i will have to use the old granny gear 4 speed. Thanks
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Joined: Jun 2004
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Tremec TKO 600 5 Speed
I have a 1973 F-100 XLT, 390 with a Lakewood bellhousing, McLeod tranny adapter between Tremec and bellhousing and yes you have to use the chevy clutch. I purchased it from Dark Horse Performance only after about a year of research on who had the best deals. And yes if you don't use the adapter you have to machine down the imput shaft. I did not want to have to wait on a machine shop or have to pay to have a brand new transmission torn down for no reason. The only other imporment I am going to do as far as the Tremec is involved the PRO SHIFT OPTION , here is there site libertysgears.com/proshift.htm
Also Doug Nash who is now owned by Richmond has build a 5 speed that will go behind Fe ford for years.
So what does this mean? Please disreguard all post made by people who don't know sh-T!
Also Doug Nash who is now owned by Richmond has build a 5 speed that will go behind Fe ford for years.
So what does this mean? Please disreguard all post made by people who don't know sh-T!
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