4 speed conversion

For those of you that changed your floor shift car to a 4 speed car did you have to alter the hump any or the factory hole in the floor or does all of this work with the 4 speed?Console too?Thanks,Scott

The tunnel hump is basically the same for floor shift auto and top loader 4spd. postion is the same for both. the 4spd hump has a provisions for the rev light wiring.... A small hole on the driver side.I have come across some floor auto shift humps with the small hole as well,just with a rubber plug in it. I have only used a factory shifter for my 2 top loader conversions.If i were racing my 4spd car. I would change to a hurst super shifter,But I believe it wont work with the factory console. Anybody tried this?

These are the Toploader ID numbers for a '72-'73 Gran Torino Sport 4 speed. They are on a riveted tag affixed to the transmission body:


RUG-BF
1972
Fairlane
351
wide
Before 12/1/71
28-spline



RUG-BF1
1972
Fairlane
351
wide
After 12/1/71
28-spline



RUG-BG
1972
Fairlane
351
wide
Before 12/1/71
31-spline



RUG-BG1
1972
Torino
351
wide
After 12/1/71
31-spline

RUG-BG2
1973
Torino
351
wide
31-spline

** Ignore the Fairlane designation, as Ford will sometimes use that for reference to Midsize units **

I read that those are not technically a top loader? I'm probably wrong but I swore David Kee had something on his website about that.
I'm running a competition shifter, my understanding this was what my car came with.
Also, with my console, its a bit close when I toss in to reverse...but no issues.
I still need to buy a reverse light switch and the bracket. Mine was lost to the sands of time.

Edited by Eliteman76 - 31-August-2013 at 5:08AM

unlovedford wrote: A very cool trick is to find a '77-'78 Granada with the 4 speed option. These Toploaders were built with a .81 "4th" gear. These gears can be retrofitted into an earlier case to get a cool overdrive transmission and still keep the Toploader. It was an iron case as well.

Did not know.

I've had a couple of them in Granadas and while mine were driven pretty easily, they seemed to have no real issues. Bad press made them appear worse than they were, and when hooked to a 250 six the spread between 3rd and 4th was pretty wide. Nothing huge, but enough to notice with 90 horsepower. Add another 100 and you'd not really notice.

If I could find one, I would do that swap into one of the spare Toploaders I have sitting in the garage - just to eliminate a lot of hassle adapting a 5 speed to a Cleveland.