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Old 08-29-2010, 12:26 PM   #8
SCOTI
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Join Date: Apr 2001
Location: DALLAS,TX
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Re: c notch already in, want to move trailing arm crossmember back

With the bolt-in style c-notches for the 6x-72 'curved' frames, there is some wiggle room (per Ken's description ).

There's 2 ways to alter the C/L of the axle in the wheel-well opening: 1) move the rear back; 2) move the body forward. You can shift the bed as far forward as possible for some of the amount needed.

If I recall, my 68 had the axle tubes toward the front of the c-notch @ full drop (no springs/bags). So moving the rear back .500 ~ 1.00" should possibly be do-able (not all trucks are the same). I don't think you'll get more than an inch w/the bolt-in style c-notches.

But, add the bed shift forward w/a .500-.750" rear end repositioning & you might hit the sweet spot you're seeking.

What truck arm c.member are you using? What drop components?
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