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69 Dart Toe-in Problem #689691 05/05/10 06:24 PM 05/05/10 06:24 PM
Joined: Apr 2005 Posts: 60 Tolstoy, SD T turbo66valiant OP member
turbo66valiant OP member T Joined: Apr 2005 Posts: 60 Tolstoy, SD	Say, I have an issue with toe in on my 69 318 Dart drag car. The local alignment shop can get the right side to actuate up and down satisfactory but the left side will toe in over 1 inch. Here is the parts list: -73 Duster disks, spindles and rear mounted calipers -73 Dart drum upper control arms w/ big ball joint -69 Dart lower control arms -69 Dart tie rods and other arms w/ PST bushings -no sway bar He asked if the car had been hit at one time but it hasn't. We noticed it more now that it raises the front end longer down the track w/ a different engine combo (turbo). Drag only car. Thanks Ryan Turbo Slant 6 Valiant 10.74 @ 127.47 6.65 @ 107.80 http://www.youtube.com/user/turbo66valiant

Re: 69 Dart Toe-in Problem [Re: turbo66valiant] #689692 05/05/10 06:30 PM 05/05/10 06:30 PM
Joined: Nov 2004 Posts: 9,312 SoCal 68HemiB master
68HemiB master Joined: Nov 2004 Posts: 9,312 SoCal	It is not clear if you are talking about the TOE or CAMBER from your description, or if perhaps the issue is a radical change in one of these during suspension travel. Down to just a blue car now.

Re: 69 Dart Toe-in Problem [Re: 68HemiB] #689693 05/05/10 06:41 PM 05/05/10 06:41 PM
Joined: Apr 2005 Posts: 60 Tolstoy, SD T turbo66valiant OP member
turbo66valiant OP member T Joined: Apr 2005 Posts: 60 Tolstoy, SD	Sorry, it is a radical change in the toe when the suspension is traveling. He did not say anything about camber. Turbo Slant 6 Valiant 10.74 @ 127.47 6.65 @ 107.80 http://www.youtube.com/user/turbo66valiant

Re: 69 Dart Toe-in Problem [Re: turbo66valiant] #689694 05/05/10 07:05 PM 05/05/10 07:05 PM
Joined: Nov 2004 Posts: 9,312 SoCal 68HemiB master
68HemiB master Joined: Nov 2004 Posts: 9,312 SoCal	Quote: other arms w/ PST bushings First off, let me compliment you on how well the turbo slant combo runs. I watched a pair of videos in hopes of gleaning from them some info on the driver's side suspension action. Being shot from the right rear and a completely 'nother car, that was no help, but I was appropriately impressed by the performance. Anyway, were this car to present to me with the complaint you describe, the thing I would do on the rack is attempt to duplicate the symptom statically. In other words, quantify how much toe shift there is by measuring it at different ride heights, done by jacking up the nose incrementally. Since the combination of parts you describe is very common, I would not expect to see much toe change when doing this test. This would leave as the cause something physically shifting [that shouldn't be shifting] as the car drives down the track. Possibilities to investigate: a. Non-rubber LCA bushing that allow the LCA to move (I'm not a big fan of poly LCA bushings). b. LCA pivot shaft hole in the K member ovalled out. c. Steering box/pitman arm not staying put. Hope some of this helps. Last edited by 68HemiB; 05/05/10 07:18 PM.

Re: 69 Dart Toe-in Problem [Re: 68HemiB] #689695 05/05/10 08:12 PM 05/05/10 08:12 PM
Joined: Apr 2005 Posts: 60 Tolstoy, SD T turbo66valiant OP member
turbo66valiant OP member T Joined: Apr 2005 Posts: 60 Tolstoy, SD	I will look into those ideas. Thanks Ryan Turbo Slant 6 Valiant 10.74 @ 127.47 6.65 @ 107.80 http://www.youtube.com/user/turbo66valiant

Re: 69 Dart Toe-in Problem [Re: turbo66valiant] #689696 05/05/10 10:37 PM 05/05/10 10:37 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Bump steer issue. The arc that the LCA moves in combined w the arc produced by the length of the tie rod assy is different on that side. Might place something as simple as a board against the tire side about halfway up and jack it up and see how much toe change you get (one end of the board will develop a gap) as the unequal arcs pull one side (front or back) of the tire in or out and start w some C to C measuring of the tie rod assy on the offending side & compare it to the other side as somewhere one side has a different measurement than the other side. live every 24 hour block of time like it's your last day on earth

Re: 69 Dart Toe-in Problem [Re: RapidRobert] #689697 05/05/10 10:49 PM 05/05/10 10:49 PM
Joined: Nov 2004 Posts: 9,312 SoCal 68HemiB master
68HemiB master Joined: Nov 2004 Posts: 9,312 SoCal	RR, with all due respect, have you ever seen bump steer in an A body cause over one inch of toe change, and on only one side? Down to just a blue car now.

Re: 69 Dart Toe-in Problem [Re: 68HemiB] #689698 05/05/10 10:54 PM 05/05/10 10:54 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	No bro I havent and yes it happening on one side does sound strange & that something is being missed live every 24 hour block of time like it's your last day on earth

Re: 69 Dart Toe-in Problem [Re: RapidRobert] #689699 05/06/10 01:43 PM 05/06/10 01:43 PM
Joined: Apr 2005 Posts: 60 Tolstoy, SD T turbo66valiant OP member
turbo66valiant OP member T Joined: Apr 2005 Posts: 60 Tolstoy, SD	Thanks for the help, the Dart is at home again and the front end should be torn apart later this week. I checked the LCA for sway and it is alittle sloppy. Later Ryan Turbo Slant 6 Valiant 10.74 @ 127.47 6.65 @ 107.80 http://www.youtube.com/user/turbo66valiant

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