just wondering ..

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Pettero

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Hello just wondering
When I give full throttle with my Dart 71 (340), it appears that the car pull to the left .. what can it possibly be. Is there anything wrong with car ..?
For me running car to normal I do not notice ,
was only one that would test drive said it .
 
You might want to look into something called "Centerline Thrust"
 
Suspension Bushings ?? Front or rear, worn ones may be causing torque steer.
 
You might want to look into something called "Centerline Thrust"

This, and generally considering all factors of "what shape" is the suspension in, both front and rear, any looseness, sagging, broken rear springs, etc AND TIRE PRESSURES as well as possible mismatches in front/ rear tires.

I'll NEVER forget this. Years ago, my then boss had a near new 80's Dodge 1/2 ton, the rear tires got somewhat worn. He sent me to "the tire store" for a new pair of rear only shoes. ONE TRIP ON the freeway. That thing felt like it was constantly going to swap ends. Fronts were still good shape both ends were radials that thing WOULD NOT go down the road.
 

When the power gets to the rear end, it wants to push one side of the rear end down. But since the pavement is rifgt there, so instead, the torque goes into the chassis via the springs. This causes one rear spring to get longer, and the other to get shorter. This introduces an offset thrust angle, which TB correctly calls centerline thrust in post#4. The chassis responds by self steering.Mismatched shock performance can aggravate the torque-steer.
If the problem is serious or dangerous, you should fix it.
The usual cheap cure is a bushing inspection and/or swap to polygraphites,an extra leaf or two on the drivers side, and possibly swapping the shocks,side for side. The better cure is a new spring set, and possibly still,new shocks.
And yes, tire pressures play a very important roll(pun intended).
Oh yeah, one more thing, a weak sure-grip can contribute.
 
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