Rear wheel rub, sag |
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dan0R30
Senior Member Joined: 30-June-2020 Location: USA Status: Offline Points: 634 |
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Posted: 11-July-2020 at 11:06AM |
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In the one month that I have owned my '70 Torino, I noticed that the left rear tire is now rubbing against the wheel well lip. I can barely pass a piece of paper through the gap. The rear tires are 275/60R15. Not sure of the backspacing on the wheels yet, but for what it's worth, the rear right side is fine; I can easily pass my fingers through. I also plan to replace all wheels and tires eventually.
At first I thought it was the air shocks that were installed by the previous owner, as they didn't seem to take a charge more than 40psi. (I've seen pictures so I know once upon a time could be jacked up like a drag car). Put on some KYB gas-a-just shocks but no luck (oh well, wanted to switch them out anyway!) I would next think that the leaf springs are bad. But the thing that gets me is that when I raise the rear with a jack, I still can't pass my fingers through it the same way I can on the right side. It almost seems like the two wheels don't have the same backspacing and perhaps the air shocks previously masked that (surely not though!). But until I measure them, is there anything else I should look for on these Torinos? The springs do look pretty rusty, and I can also push the rear down easily. Let me know what you all think, thanks!
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Dan
1970 Ford Torino hardtop - 351C 4V - FMX - 9" 3.89 TrueTrac |
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Big Bird
Senior Member Joined: 25-August-2013 Location: New York Status: Offline Points: 4194 |
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Switch the rear wheels side to side. you will find out whether the wheels are different or the axle is off-center.
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"What we do in full frontal view, is more honest than your cleaned-up mind."
Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
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Rockatansky
Senior Member Joined: 30-July-2010 Location: On The Road Status: Offline Points: 6059 |
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leaf spring bushings? just pulling the tires off and using a straight edge off the brake drums should give you enough to measure against ... think about how many times those bushings have taken the tq load / thrust to get that car moving, not a far stretch in my mind for them to be worn unevenly to one side. can someone follow behind you on the road to see if the car is dog-tracking? or take it and have the 4 wheel alignment checked. |
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72 GT Ute
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californiajohnny
Moderator Group Joined: 05-October-2013 Location: winlock, wa Status: Offline Points: 14606 |
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both good suggestions!
i'd try the wheel swap to see it is the same, yeah bushings may be worn, or the u-bolts and springs shifted? if so try loosening the u-bolts and pull the rearend over some with a ratchet strap then re-tighten the bolts... see if it stays there??? |
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JOHN
74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
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Rockatansky
Senior Member Joined: 30-July-2010 Location: On The Road Status: Offline Points: 6059 |
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if new springs aren't in the budget, change the bushings and swap the springs side to side
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72 GT Ute
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dan0R30
Senior Member Joined: 30-June-2020 Location: USA Status: Offline Points: 634 |
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Easy enough, thanks for the tip! Didn't even cross my mind!
Good point, makes sense if the open diff tends to put the torque to one side too.
Another good idea. Definitely have a lot to play with now to be dangerous! May wait for the spring purchase to replace all and check alignment of the rear end. Thanks everyone!
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Dan
1970 Ford Torino hardtop - 351C 4V - FMX - 9" 3.89 TrueTrac |
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dan0R30
Senior Member Joined: 30-June-2020 Location: USA Status: Offline Points: 634 |
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Rockatansky, I was searching for some spring prices and saw a truck forum post mentioning a Torino with the same scenario occuring on one side..so i'd say not a far strech at all! https://www.f150forum.com/f10/bed-sag-leaf-springs-34759/
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Dan
1970 Ford Torino hardtop - 351C 4V - FMX - 9" 3.89 TrueTrac |
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