SubFrame Torque Specs?

Discussion in 'Suspension, Steering, Brake & Wheel Topics' started by Johnboy9914, Mar 11, 2008.

  1. Johnboy9914

    Johnboy9914 New Member

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    I've looked and looked (mabey overlooked) but cannot find a torque specification to re-mount the front sub frame on my 81. The car originally came with a 267 V8, now a has a 355. I'm using new factory rubber bushings (it's my wife's daily driver). Also, what is the best way to measure the subframe for accurate alignment (from a point on the body, from the center of the rear hubs or from the yoke on the differential, or all the above?) I just want to ensure it's right. Thanks in advance.
     
  2. fiscus

    fiscus Veteran Member

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    there are alignment holes at the middle mounts where you put a pin (you can use a bolt) through the frame into the body to line it all up. I don't know the torque but I think its pretty tight, maybe 80lb-ft or something
     
  3. 67lemanster

    67lemanster Veteran Member Lifetime Gold Member

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    the holes are there just like fiscus says. stick some spare round bar stock in there to get them aligned.

    90-100 ft lbs. and recheck them after a 100 miles or so. however i use my impact set on high ;)
     
  4. 68400BIRD

    68400BIRD Veteran Member

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    90-100 ft lbs. and recheck them after a 100 miles or so. however i use my impact set on high ;)[/QUOTE]


    Is that why your car sits so low:crazy:
     
  5. 67lemanster

    67lemanster Veteran Member Lifetime Gold Member

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    yeah i squished them. lol lol
     
  6. John Wright

    John Wright Veteran Member Lifetime Gold Member

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    Son!...I gotta get me one of them impact wrenches like you got that will crush solid aluminum down like that......LOL:bowtie: :p
     
  7. 79ZED

    79ZED Veteran Member

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    Radiator support body mounts should be 30-54 lb ft.

    Underbody mounts ( firewall and end of subframe ) should be 100 - 130 lb ft.

    John
     
  8. Johnboy9914

    Johnboy9914 New Member

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    Thanks to everyone, appeciate the info:cool:
     
  9. Willy 71SS

    Willy 71SS Veteran Member Lifetime Gold Member

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    90-100 ft-lbs is what I have found too for subrame bushings.

    The alignment pin was .610" +- .002", the 5/8 or 16 mm pin sometimes recomended was to large. I got this # from an assy manual.....
     
  10. John Wright

    John Wright Veteran Member Lifetime Gold Member

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    I found that a tire iron(bumper jack handle/lug wrench) fit mine the other day and worked great.
     

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