ok then i now know what i have to do wish me luck i shal be informing you on my results so heres to nothing

"young bucks bring fresh ideas sometimes they work sometimes they dont but all the same it was an idea it wasnt the first it wont be the last either!"

John:

Were you referring to me, or "the other John F" from Missouri?  I have not done this, but my friend Bob Bayles did.  He had driveline vibration, and eventually something failed, so he gave up.  I suspect he did not support the original input (now output) shaft properly.  On an engine the front of that shaft is supported by the pilot bearing.  On my car hauler I have separated an overdrive unit from its transmission and mounted it in the driveline.  Required making a front half of a case and making the input shaft accept a U joint yoke.

John - "The Hoosier Hurricane"

I'm surprised John F hasn't jumped in here. He mounted a second transmission backwards, uses 3rd gear straight through and 2nd acts as an overdrive. Jerry Christenson did the same thing behind a 460/C6 in his 57 convertible.

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

A machine shop that does custom work. Get out the yellow pages and call some local machine shops. Check with some local transmission shops to see if they know of anyone. Maybe call a place like David Kee Toploaders to see if they can point you in the right direction.



Actually, Google "custom gears." A lot of manufacturers come up.



Another thing that comes to mind is that you may have to provide the dimensions for the gears, particularly if it's a less popular gear box you're using. The transmission will have to come apart. Can you do it or will you have to pay someone? Measurements will have to be taken. Can you do it or will you have to pay someone? Drawings will have to be made. Can you do it or will you have to pay someone? The transmission will have to be put back together. Can you do it or will you have to pay someone? When you're calling places, keep this in mind. Maybe you'll find a place to which you can send your gearbox, they'll handle all of the design/ fabrication work, and send back an assembled tranny with your custom gears. Or maybe you'll have to hire individual companies for each step. There is a lot more to it than that which appears at first glance.


Lawrenceville, GA

ok does any one know where one could get custom cut gears?

and i am still thinking about the t56 depends on how pricy regearing the second tranny is.

"young bucks bring fresh ideas sometimes they work sometimes they dont but all the same it was an idea it wasnt the first it wont be the last either!"

The only limit is your imagination... and the depth of your pockets. To get what you want will require custom gears. Can you make them? Can you afford to pay someone to make them? If you can do either of these, then go for it.



By the way, I think you would be the first to install a T56 in a Y block truck if you were to do it.


Lawrenceville, GA

Interesting concept but where would you get the gears for "re-gearing the second four speed"? Not to mention how you would connect the two?? I think someone already mentioned a two speed rear axle. Or maybe looking into a Gear Vendors Under/Overdrive? I have one on my C-4 and with gear splitting gives me six speeds altho I don't usually use it like that. I use it as 1st to 1st OD for close ratio take off shift (just mash the button for second) and 3rd O/D for highway.

BOB

ok im being serious here like above mentioned what are the limitations to regearing a transmision? the second 4spd being regeared so first is underdrive second is 1:1 3rd od 4th another od that was what i was saying i thought i made that clear above! further mor if i was intending on having something someone else has already done id just throw a t56 in it!

p.s. even i know that two stock 4speeds coupled together is just basicaly gonna turn my truck into a 1/2 ton tractor!!!!

"young bucks bring fresh ideas sometimes they work sometimes they dont but all the same it was an idea it wasnt the first it wont be the last either!"

Frank; OR put both in reverse and drive backwards  like GM does all of the time!

  AussieBill            YYYY    Forever Y Block     YYYY

 Down Under, Australia

OR, you could put one wheel in reverse and the other in forward and drive in circles!! Like GM does most of the time!!!

Frank/Rebop

Bristol, In ( by Elkhart)