is this good deal on '70 12 bolt?

Discussion in 'Transmission & Driveline Topics' started by Jason7504, Mar 25, 2012.

  1. Jason7504

    Jason7504 Veteran Member

    1,070
    3
    May 4, 2010
    Vancouver, WA
    that's weird because your driveshaft should have been too short if you put in a 70 camaro 12 bolt..
     
  2. big gear head

    big gear head Veteran Member

    5,856
    14
    Jul 30, 2001
    Central City, Ky.
    No, you will have to use the adapter u joint.
     
  3. Jason7504

    Jason7504 Veteran Member

    1,070
    3
    May 4, 2010
    Vancouver, WA
    damn and i just ordered the u-joints through randy's ring and pinion too
     
  4. big gear head

    big gear head Veteran Member

    5,856
    14
    Jul 30, 2001
    Central City, Ky.
    You will need a pre '76 yoke for the transmission if you are going to use the 1310 u joints. Don't use a stock Powerglide yoke because they are weaker. The TH350 and 4 speed used a stronger yoke. These are available in many places. You can get them forged, billet, aluminum and cast steel. The cast steel is plenty strong for most street cars and the forged yoke is the strongest. Most drive shaft companies like Inland Empire Driveline, Denny's, Strange and others have them, along with many other places like Moser Engineering.
     
  5. Jason7504

    Jason7504 Veteran Member

    1,070
    3
    May 4, 2010
    Vancouver, WA
    well i will probably just return the one u-joint and get a 1310 to 3R u-joint so i can use my '81 th350 yoke
     
  6. Jason7504

    Jason7504 Veteran Member

    1,070
    3
    May 4, 2010
    Vancouver, WA
    is there no brake shoe adjustment openings on the '70 camaro 12 bolts? i had one on my 10 bolt but when i went to adjust the brake shoes on the 12 bolt, i don't see an opening.
     
  7. MadMike

    MadMike Administrator Staff Member

    13,544
    22
    Feb 11, 1999
    Dawsonville Georgia
    I'm going to wake this thread up because I'm working on my driveshaft, slip yoke & rear yoke now.

    1973Z with original M21 4-speed, 1970 12 bolt rear end w/teeny yoke, and a 48" driveshaft from unknown origin.

    I have 2 slip yokes... short and long.
    I have 3 pinion yokes. The one that's currently installed (which I'll probably use), a nice 8.5" yoke, and a billet "12 bolt" yoke.

    I have the conversion u-joint... that may or may not work.

    My current question was if the 48" shaft will work.
    This 12 bolt has 4.88 gears. I'm going to live with that for the time being rather than rip it apart and put the 4.10's in it. My yoke doesn't fit on the splined pinion shaft of the new gears.... so... I'm to the point now where I'm going to button it up and see where I'm at.
    My initial question was buying the wrong joints, if the shaft is too short.
     
  8. MadMike

    MadMike Administrator Staff Member

    13,544
    22
    Feb 11, 1999
    Dawsonville Georgia
    My available slip yokes are
    5.25" & 6.5" long.
    I ASSUME the 5.25" yoke will be the one I'm going with?
     

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