5.o and 5speed
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Joined: Oct 2004
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5.o and 5speed
Hey, does anyone have any ideas on how to install a Mustang 5.0 efi and a 5 speed into a 1967 to 1972 F100? I understand that installing one with an AOD is straight forward, but I can find nothing on 5 speed installation. This truck will only be used for light duty/daily driving; no heavy pulling or hauling. Thanks for any ideas!
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Joined: Nov 2005
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From: Madison, SD
Only thing different on using the 5 speed would be the clutch linkage and tranny mount. Could use the Mustang bellcrank and cable, or modify the pickup linkage to fit. Quite sure the transmission mount would require some mods. Another concern would be where the shifter will end up in the floor, might have to use one of the forward angled handles like they do in the Cobra's when using the 5.0 5 speeds.
Hotshot
Joined: May 2004
Posts: 12,170
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From: The hills of No. Calif.
Wow, long time between posts...welcome back!
It's also possible to use a hydraulic clutch, although the fabrication required on the firewall side to install a clutch M/C might be more than you'd want to tackle. The Mustang 5-speed uses a cable as Dave said, but it works backwards from the traditional push linkage so where a typical mechanical linkage pushes towards the rear of the vehicle to disengage the clutch, the cable pulls towards the front. It would require some real ingenuity to keep it mechanical, I think it would be easiest to convert to the Mustang cable-pull setup.
The shifter can be a problem depending on which Mustang tranny we're talking about here. The most common is the T5 which has the shifter all the way to the rear of the tranny which would have it coming up out of the front of your bench seat. I switched to buckets in my Ranger as the easiest way to solve the problem when I put the T5 in it, but there are other options. The Chevy S10 used a T5 in both 4 and 6-cylinder versions, and it has the shifter located further forward on the tailshaft housing. They're pretty easy to find and you have to dissassemble the Mustang tranny and swap in the S10 mainshaft, and tailshaft housing. This requires you to use the S10 front yoke on your driveline, but since you will have to change the driveline length anyway you can just change it all out at that time. And don't worry that you're using Chevy parts in your Ford, it's actually all just Borg Warner parts...
The Mustang and S10 T5s are different at the front end where it mounts to the bellhousing, different bolt pattern and input shaft so that pretty much eliminates swapping the entire tranny. And the S10 T5 isn't as strong as the Mustang unit. Be sure to get a World Class T5 for a V8, not a Mustang 4-cylinder T5 or it won't last long...
Later Mustangs used the Tremec 5-speed which has the shifter located further forward and eliminates the hassle of tearing down the tranny and swapping parts. Plus, they're stronger than the T5. Downside is they're not quite as plentiful and inexpensive. You could pick up a used T5 for $250 but a Tremec will run you more like a grand and up. Both trannies require their own specific bellhousing so you have to make sure you get that along with the tranny...but I presume you've got a line on an entire engine/tranny package...? Be sure to get the wiring harness and the computer along with it.
For the EFI, it would be easiest to use an aftermarket wiring harness to simplify installation into the older truck. There are several companies that make one for transplanting and EFI engine into an early Mustang so I don't see any reason why one of those wouldn't work with some minor modification. Here's a link to one:
http://rjminjectiontech.com/
While you're there, poke around that site. They have a ton of great info on Ford EFI.
Hope there's something in all of this that's of some value to you...
It's also possible to use a hydraulic clutch, although the fabrication required on the firewall side to install a clutch M/C might be more than you'd want to tackle. The Mustang 5-speed uses a cable as Dave said, but it works backwards from the traditional push linkage so where a typical mechanical linkage pushes towards the rear of the vehicle to disengage the clutch, the cable pulls towards the front. It would require some real ingenuity to keep it mechanical, I think it would be easiest to convert to the Mustang cable-pull setup.
The shifter can be a problem depending on which Mustang tranny we're talking about here. The most common is the T5 which has the shifter all the way to the rear of the tranny which would have it coming up out of the front of your bench seat. I switched to buckets in my Ranger as the easiest way to solve the problem when I put the T5 in it, but there are other options. The Chevy S10 used a T5 in both 4 and 6-cylinder versions, and it has the shifter located further forward on the tailshaft housing. They're pretty easy to find and you have to dissassemble the Mustang tranny and swap in the S10 mainshaft, and tailshaft housing. This requires you to use the S10 front yoke on your driveline, but since you will have to change the driveline length anyway you can just change it all out at that time. And don't worry that you're using Chevy parts in your Ford, it's actually all just Borg Warner parts...
The Mustang and S10 T5s are different at the front end where it mounts to the bellhousing, different bolt pattern and input shaft so that pretty much eliminates swapping the entire tranny. And the S10 T5 isn't as strong as the Mustang unit. Be sure to get a World Class T5 for a V8, not a Mustang 4-cylinder T5 or it won't last long...Later Mustangs used the Tremec 5-speed which has the shifter located further forward and eliminates the hassle of tearing down the tranny and swapping parts. Plus, they're stronger than the T5. Downside is they're not quite as plentiful and inexpensive. You could pick up a used T5 for $250 but a Tremec will run you more like a grand and up. Both trannies require their own specific bellhousing so you have to make sure you get that along with the tranny...but I presume you've got a line on an entire engine/tranny package...? Be sure to get the wiring harness and the computer along with it.
For the EFI, it would be easiest to use an aftermarket wiring harness to simplify installation into the older truck. There are several companies that make one for transplanting and EFI engine into an early Mustang so I don't see any reason why one of those wouldn't work with some minor modification. Here's a link to one:
http://rjminjectiontech.com/
While you're there, poke around that site. They have a ton of great info on Ford EFI.
Hope there's something in all of this that's of some value to you...
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Thanks TigerDan!! I checked the link out and it was full of good information. I have not posted in a while due to moving from South Carolina to Minnesota within the past 2 years. I had to leave my '68 F100 Ranger at my Mom's house and I found another one up here that needs an engine. I was just bouncing around ideas. I will use this information when I upgrade my truck in South Carolina for sure. Thanks again!
