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5 spd swap for 240 six in my 1966 F100
Posted: January 23, 2011, 12:12 am
by 57ratrod
i am thinking of trying to replace my 4spd with a 5 spd in my 66 f100. i am sure someone has helpful info o this swap and maybee could shed some light for me as to what junkyard parts i will need..or if i have to buy a kit? any and all help would be greatly appreciated..Donnie
Posted: January 23, 2011, 12:27 am
by Greg D
Dan (MadMaxEtc) is your guy, he did a T-5 swap on a big six.
Last I saw him post on Facebook said something about BYOB, Jello Shots and his brother's B Day - probably won't reply tonight, LOL.
Welcome to Slick 60s.
Posted: January 23, 2011, 12:51 am
by ezernut9mm
welcome to the show 57rat. 'bout time you posted. lol.
here is dan's thread (it's only 9 pages):
http://www.fordification.com/forum/view ... &sk=t&sd=a
Posted: January 23, 2011, 12:53 am
by ezernut9mm
Posted: January 23, 2011, 12:58 am
by 57ratrod
Rite on!! Thanks alot chris..I cant believe all the helpful info on this site.
Posted: January 23, 2011, 8:53 am
by R Pope
An M5 from a '88-up pickup is a good swap if you can find one. They were behind 300 6's and 351's, so they bolt up.
Posted: January 23, 2011, 9:07 am
by Brian Taylor
Here is Max website with all the info and more:
http://members.cox.net/madmaxetc/
Posted: January 23, 2011, 10:13 am
by Greg D
R Pope is right - M5OD from a 80s-90s F 150 is pretty much a bolt in. They are fairly common in yards unlike the World Class T-5. It uses a hydraulic clutch that you'd need to swap but that shouldn't be too tough since larger Slicks came with them. You should replace the shifter seal on an M5OD also - they tend to go bad and then the tranny loses the fluid.
T-5 you either have to do a tailshaft swap or deal with a shifter location that is pretty close to the seat.
M5OD the shifter is pretty close to the stock location of the 4 speed you pull out.
If you are doing this for fuel mileage and driveabilty either transmission is a good choice.
Posted: January 23, 2011, 1:10 pm
by MadMaxetc
I went with the T-5 because all 5 gears are close together. Not so much a granny gear. I wanted more of a streat truck.
If you want to use your truck more like a truck and want a lower FINAL gear, the M5R2 id a good swap. I actualy couldn't find one and had a mustang friend that has a T5.
Like greg said...both are good.
Be sure to think about RPM in all gears. You don't want to have it screming at high RPM at 45 if you drive 45 a lot. etc...
I have a spreadsheet that I can calculate a lot of gearings, rpm, mph, etc...
I will post something later.
Posted: January 23, 2011, 7:33 pm
by MadMaxetc
Here is what I did for my 67.
If you give me the inputs in Orange and Yellow, I will make one for who every wants one.
I can email the excel sheet too.
Posted: January 23, 2011, 9:00 pm
by Brian Taylor
When I was looking for a 5 speed for mine I rarely found one. I went out this Saturday NOT looking for one and found 4 at one yard in F150 with the EFI 4.9 I6. They are everywhere........
