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Thread: What type of transmission did you choose and why?

  1. #41
    Join Date
    May 2004
    Location
    Clinton, TN, USA.
    Posts
    1,287
    I've got one of those nifty-steering wheel releases from Lee. It is a must have. Pop off the steering wheel and it really improves access to the driver footbox and any under dash work.

    Ralph

  2. #42
    Join Date
    Nov 2003
    Location
    Mississippi Gulf Coast and Central Florida
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    2,153

    Thumbs up

    I plan on having one as well. Thanks for the heads-up advice Ralph.
    Paul

    289 USRRC
    1964 289 5-bolt block
    Toploader and 3.31 rear

  3. #43
    Join Date
    Jan 2003
    Location
    Dacula, GA, USA.
    Posts
    450
    I chose to ressurect this thread as I navigate my quest for "differential knowledge". My low-performance brain is far too under powered to decypher all of this insightful data. I'm just curious as to what lurks in my undercarrage (no puns please). During a recent wheel-balancing episode, I noticed the techs lowered one of the rear wheels onto a rim to hold it still while they spun the other using my cars drive train. Then they swapped ends and spun the other. They referred to the differential as being "open". I'm pretty sure that both wheels spin when laying drag.

    So what it be?
    427SC, Torch Red / white stripes
    427 Windsor Stroker from Southern Automotive
    Delicious example of Beauty + Power.

  4. #44
    Join Date
    Nov 2003
    Location
    La Plata, Maryland, USA.
    Posts
    421
    Tony, you have an open rear or NON - posi type diff. No question about it if they had to hold one wheel still in order to turn the other one. You can lay dual patch "sometimes" with an open rear, but with a posi, you can do it everytime.
    Jim Harding
    #4279512 - SA452 - TKO600
    #3004 - 302 - 4 speed
    La Plata, Maryland

  5. #45
    Join Date
    May 2005
    Location
    Roseville, Ca., USA.
    Posts
    523
    Tony, Here’s something to try, jack up the back of the car and, with the car in gear (not running) turn one of the rear wheels by hand. If the other wheel turns the opposite direction without much effort you have the “open” non posi type of differential. I said without much effort because you can do the same thing with a “posi” unit but the clutch pack inside the differential would have to “slip” and the effort to do this would be much greater. Now if you have a “Posi” unit and the shop balanced the tire as you said they would have fried the clutch pack inside the differential by blocking the one side and spinning the other under power. Hope that’s not the case.
    Rod
    Roseville, Ca.
    289 FIA #9152 "The Flintstone Cobra"

  6. #46
    Join Date
    Jan 2003
    Location
    Dacula, GA, USA.
    Posts
    450
    Thanks guys. I was pretty sure that when the folks at Gran Turismo East said it was "open", I could probably take it to the bank. The rear end in my old '66 Mustang would always only spin one tire. Of course it wasn't a Jag. I'll have to lay some drag and characterize what actually happens back there.
    427SC, Torch Red / white stripes
    427 Windsor Stroker from Southern Automotive
    Delicious example of Beauty + Power.

  7. #47
    Join Date
    Jul 2004
    Location
    Birmingham, AL, USA.
    Posts
    201

    Transmission

    I am also a fan of period correct cars. Mine is a FIA car, 302 V8 with wide ratio top loader. The wide ration gives a little more freedom for freeway driving but still lets you run in lower gears while running country roads.
    Dennis M. Swann

  8. #48
    Join Date
    Nov 2003
    Location
    Mississippi Gulf Coast and Central Florida
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    2,153
    Quote Originally Posted by dmswann View Post
    I am also a fan of period correct cars. Mine is a FIA car, 302 V8 with wide ratio top loader. The wide ration gives a little more freedom for freeway driving but still lets you run in lower gears while running country roads.

    What rear gear ratio do you have?
    Paul

    289 USRRC
    1964 289 5-bolt block
    Toploader and 3.31 rear

  9. #49
    Join Date
    Mar 2009
    Location
    san angelo, texas
    Posts
    12

    Thanks for the help guys!

    I just wanted to let you guys know that you have all been so helpful with this thread. I made my decisions awhile back and I now am the proud owner of a deluxe pallet kit with a 3:54 posi in which I will be attaching my 427 Ponds SO to a Tremec TKO600 5 speed. Not very traditional I know, (I'm sure Alan could attest to my lack of convention), but definitely will fit to my driving situation. You guys have been really helpful and I am thoroughly impressed to see this thread still being viewed and discussed. I also wanted to thank Alan for helping me through those tough decisions. I am finishing up my body buck right now and anxious to move on to the next step. I know my children will be disappointed to see the body come off, because they love getting in and "driving". Thanks for all of the input.
    Vapor Cone, I've been told, occurs just as you break the sound barrier!

    4279538

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