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Author
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Topic: highway speeds
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honeyburst
Gearhead Posts: 846
From: Nashville, TN, USA
Registered: Mar 2006
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posted 06-12-2006 10:06 AM
 
took my wife to a Dr. appointment this morning...on the way from there, I decided to get on the interstate...first time the new 65 coupe has been over 50mph....got up to around 60 and hit a rough section of highway...thing bounced so much I thought it was going to go sideways !!!....I know the left tie rod end needs to be replaced and the steering (manual) needs to be adjusted to take out a little play, but everything else looks good....it's got new tires and new front shocks.....
It's been a long time since I've had this body style Mustang...is this normal or could the tie rod end cause that kind of problem or should I be looking for something else ???------------------
Without life there could be no music, but without music, there can be no life.
1973 Convertible, 1965 A Code 4spd coupe, Past: 1969 GT, 1967 6cyl coupe, 1968 coupe
Two Rivers Ford, Parts Dept., Nashville, TN
www.geocities.com/littlewhitecoupe
www.geocities.com/jezebeldream
www.geocities.com/my73conv
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Blacksmith
Gearhead Posts: 604
From: Front Royal, Va., USA
Registered: Feb 2006
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posted 06-12-2006 10:50 AM
quote:
Originally posted by honeyburst:
thing bounced so much I thought it was going to go sideways
My old 68 coupe did the same thing when I got it back in 82.
I ended up replacing upper & lower ball joints, tie rod ends & new shocks to fix the problem.
Rough gravel roads around Colorado Springs really trashed the suspension.
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honeyburst
Gearhead Posts: 846
From: Nashville, TN, USA
Registered: Mar 2006
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posted 06-12-2006 11:29 AM
well, maybe when I replace that tie rod end that will correct the problem....hopefully 
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Fastback68
Gearhead Posts: 4511
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 06-12-2006 12:38 PM
If it doesn't fix it, start checking for threads on bump steer etc. I now have a new philosophy on the steering of 65-70 Stangs. If everything is NEW and exactly as original, the steering will be just about acceptable.
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honeyburst
Gearhead Posts: 846
From: Nashville, TN, USA
Registered: Mar 2006
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posted 06-12-2006 12:56 PM
bump steer ???....does manual steering have this ???...what is it ???
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senzstang
Gearhead Posts: 530
From: perry, oh, usa
Registered: May 2002
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posted 06-12-2006 01:03 PM
How is the alignment?
A bad alignment can cause the high speed behavior you describe.Bumpsteer is a hot topic with people who have done the Granada swap and are running big rims and tires (16" 17" rims. I can't even begin to explain it but it has to deal with how your alignment changes when the front end unloads. It should not be a problem with stock suspension. Phil
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honeyburst
Gearhead Posts: 846
From: Nashville, TN, USA
Registered: Mar 2006
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posted 06-12-2006 01:27 PM
*whew*....stock suspension, stock rim/tire sizes......I'm in the clear there
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Blacksmith
Gearhead Posts: 604
From: Front Royal, Va., USA
Registered: Feb 2006
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posted 06-12-2006 02:43 PM
quote:
Originally posted by Fastback68:
If everything is NEW and exactly as original, the steering will be just about acceptable.
My 65FB is WAY better than I ever remember the 68 coupe being after replacing all the front end parts.
Maybe it's the Shelby parts up front that make the difference??? Handles like a slot car instead of a snow saucer on ice...
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senzstang
Gearhead Posts: 530
From: perry, oh, usa
Registered: May 2002
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posted 06-12-2006 03:26 PM
This should help understand bumpsteer. A very nice website.http://home.bresnan.net/%7Edazed/bump Phil
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gmliebau
Gearhead Posts: 691
From: Port St. Lucie, FL
Registered: Jan 2004
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posted 06-12-2006 04:54 PM
I can't believe that you guys don't like the feel of floating down the highway getting blown around by passing vehicles. hehe. Mine feels just like an old Cadillac.Thanks for the link senzstang. I'll be needing to refer to it when I continue the work on my car.
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honeyburst
Gearhead Posts: 846
From: Nashville, TN, USA
Registered: Mar 2006
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posted 06-12-2006 04:56 PM
that site really helped....pretty easy to understand also....THANKS !
gave the specs to our alignment guy, going to give it a shot tomorrow
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honeyburst
Gearhead Posts: 846
From: Nashville, TN, USA
Registered: Mar 2006
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posted 06-12-2006 05:04 PM
"floating" isn't the problem...it's when you hit a bump in the road and it feels like a mark-48 detonated off your bow
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bob6364
Gearhead Posts: 447
From: griswold,ct usa MCA#59447
Registered: Dec 2004
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posted 06-12-2006 08:15 PM
Gee....sounds like it needs a good set of shocks.....
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exlocal
Gearhead Posts: 1552
From: hacienda hts., CA, USA
Registered: Dec 2004
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posted 06-12-2006 11:36 PM
Improperly inflated tires, too hard or too soft of a combination of both.Loose front hubs on front bearings. This happened to my 67 coupe. It literally jumped a few inches to both sides at freeway speeds. Repacked the front bearings and took out the play cured that problem. ------------------
reliving youth
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honeyburst
Gearhead Posts: 846
From: Nashville, TN, USA
Registered: Mar 2006
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posted 06-13-2006 12:08 AM
new front bearings, new front tires, new front shocks.....going to adjust the steering gear when I get home tomorrow night and replace the tie rod end this weekend....along with an alignment....hopefully that will cure it
was going to take it to see my dad this weekend, but DAMN that would be a long drive at 45 mph *lol*
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