1. If you have recently registered with a gmail email address, you must contact me, as gmail will not forward our confirmation email to you. Contact me and jim@trishieldperformance.com to complete your registration.
    Dismiss Notice
  2. In and effort to reduce the spam on the site, several years ago I had went to a program where I manually approve each and every new registration. This approval gives you full access to the site, to pictures, and to post, among other things. To be able to enjoy the full potential of the board for you, you need to be fully registered.. and that's easy.. Just send an email to me at jim@trishieldperformance.com and I will verify your registration. This policy will remain in effect indefinitely, as it has completely eliminated the bad actors from our site, who would spam and hack it, once they gained access. Thanks JW
    Dismiss Notice
  3. The "Group Buy" for the 1967-68 Deluxe Steering wheel recasting is now officially "Open". Now is the time to start sending in the wheels. The latest date that the wheels must be received by Kochs is 31 March 2025 The cost for each wheel is $750. The only "up front cost" is your shipping the wheel. If you send in more than one wheel, each additional wheel will cost $700. Shipping and insurance to Kochs and return shipping will be extra. You will be contacted by Teresa to make payment for the wheel(s) and return shipping and insurance when your wheel(s) is complete. The shipping will be factored on your delivery address and insurance. I will be sending the contact information all of you have sent me to Teresa at Kochs. Send in your wheels, horn pad and hardware and paint color sample if applicable. Please include: First and Last Name Shipping Address Phone number email address V8Buick "Member Name" Wheel Color (SEE THE BOTTOM FOR WHEEL COLOR) Pease read the "shipping to Kochs" below. There are two addresses. One for USPS Mailing One for FedEx and UPS shipping You can use USPS/Mail, UPS or FedEx to send in your core. Use the appropriate address depending on what service you use to ship. If you use USPS/Mail ship to: Koch's P.O. Box 959 Acton, CA 93510 Attn: Teresa If you use UPS or FedEx ship to: Koch's 7650 Soledad Canyon Road Acton CA 93510 Attn: Teresa Kochs Contact: Teresa (661) 268-1341 customerservice@kochs.com Wheel Color If you wheel is Black, you can list that in your information you send in with your wheel. For colored wheels, please contact Teresa about specifics for wheel color if you do not send in a color sample to match. Please contact me if you have any questions. Thank you to everyone for your participation in making this a reality. And "Thank You" Jim Weise, for allowing and facilitating this project! Michael .................... to remove this notice, click the X in the upper RH corner of this message box
    Dismiss Notice
New users Registered with a gmail address Attention All new Users 67-68 Deluxe Steering wheel recast Group buy

What is a TH-475...?

Discussion in 'The "Juice Box"' started by britt'sStage 1, Nov 14, 2010.

  1. britt'sStage 1

    britt'sStage 1 A Lone Wolf In D.C.

    :Smarty: What is a TH-475 Transmission? I heard that they are TH-400 trans,used in motorhomes,they have straight-cut gears,low gear set(2.75 vs.2.48,extra clutch pack,etc.) Advantage,Disadvantage...I don't hear of anyone using a TH-475....I'm just asking. Jay B.Britt,Jr.
     
    britt'sStage 1, Nov 14, 2010
    #1
  2. Phil

    Phil It really *is* a 350...

    Everything I can dig up pretty much indicates that the TH475 has straight-cut gears, a heavier case, and provisions for a tailshaft mounted parking brake, sometimes has a bolt-on rear yoke, and deep pan. They were used in heavy duty trucks and motorhomes.

    I think the reason you don't hear about any of us Buick guys using them is that they were a Chevy bellhousing pattern only. The TH475=3L80HD
     
    Phil, Nov 15, 2010
    #2
  3. Big Matt

    Big Matt Well-Known Member

    Would it be possible to take the guts out of a TH475 and install them in a BOP TH-400 case? Or does the "heavier case" of the TH475 make this impossible? Just a thought.
     
    Big Matt, Nov 15, 2010
    #3
  4. kwanderi

    kwanderi Keefer

    They were also used in FWD Eldorado's behind the 500.
     
    kwanderi, Nov 15, 2010
    #4
  5. BRUCE ROE

    BRUCE ROE Well-Known Member

    The FWD Eldo/Toro/GMC motorhome trans is a TH-425. I haven't worked on a TH475, but likely most all the parts & case interchange between a TH400. The heavy duty transmissions had more clutch plates, and some had extra bracing molded into the case, same internal dimensions. Bruce Roe
     
    BRUCE ROE, Nov 15, 2010
    #5
  6. nekkidhillbilly

    nekkidhillbilly jeffreyrigged youtube channel owner

    the c50 c60s had them
     
    nekkidhillbilly, Nov 15, 2010
    #6
  7. william.ali.kay

    william.ali.kay Needs more cowbell!

    Id expect that set up to be loud in a passenger car.
     
    william.ali.kay, Nov 15, 2010
    #7
  8. TheSilverBuick

    TheSilverBuick In the Middle of No Where

    My question is, "Who's breaking TH400's so much that they need one?"
     
    TheSilverBuick, Nov 16, 2010
    #8
  9. dosko

    dosko Well-Known Member

    Now the can of worms is open, anything can be broken. Can you overload the 400 we know the answer is yes, weight, traction, gears, drive shaft, lets say we double all that strength wise, Whats gonna give next assuming we have enough power.

    Then there's a question of the extra clutch's, do we have a slower shift, or is there any way to improve on shift speed.
    Just a thought.
    Wil
     
    dosko, Nov 21, 2010
    #9

Share This Page