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Doing Shelby drop

  • Thread starter Thread starter 65fastbackresto
  • Start date Start date Aug 24, 2007
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zookeeper

Founding Member
Aug 25, 2001
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Rogue River, Oregon
Aug 26, 2007
#21
  • Aug 26, 2007
  • #21
Soaring1 said:
The Shelby drop was invented by Carroll Shelby to improve the handling on his GT 350 and was never intended to be used on a 67 and up. That's why there is confusion about where to drill the holes on the 67 and up.
Click to expand...
Who was confused? Seemed pretty straightforward to me.
 
D

Dazecars

Member
Jun 20, 2005
84
1
9
Aug 27, 2007
#22
  • Aug 27, 2007
  • #22
Soaring1 said:
The Shelby drop was invented by Carroll Shelby to improve the handling on his GT 350 and was never intended to be used on a 67 and up. That's why there is confusion about where to drill the holes on the 67 and up.
Click to expand...

There is nothing about that statement that is correct. The UCA drop was designed by Ford suspension engineer Klaus Arning and was passed the information on to Shelby who did the mod tell mid year in 66. On a 60-66 Falcon, or Mustang the drop is 1" down 1/8" back unless you want to go more and use a negative wedge kit. The geometry of a 67-70 Mustang is almost the same as the first generation Mustang and the drop can still be done only it is 1"down and no movement towards the rear. In 71 the mod was incorporated in to the suspension geometry at Ford so DO NOT drop a 71-73 UCA with out a negative wedge kit.
 
7

70GT500SCJRcode

New Member
Aug 25, 2007
5
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0
Aug 27, 2007
#23
  • Aug 27, 2007
  • #23
65fastbackresto said:
and roller idler arm too. I`ve got manual steering just trying to make it a little easier, probably fixing to order the adj strut rods too. I got all my stuff from Opentracker, he`s good and wont sell ya anything ya dont need.

Yesterday I finished por-15 treatment in my shocktowers, got my control arms in, disc brakes on and plummed (master cyl, prop valve), one coil, and one shock. Putting stuff back together sure is more fun then gutting and detailing stuff.

I think Opentracker rollers were $199.
Click to expand...

I made some call's and the Marlo's spring perches are $160each, so that's $320 a set. Lot's of stuff on the market to look at.
 
H

Helmantel

New Member
Aug 9, 2006
206
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Aug 28, 2007
#24
  • Aug 28, 2007
  • #24
70GT500SCJRcode said:
Very nice article. I like the photo showing the new holes. My car is a 70 model. Did you use your roller spring perch in that swap and how much are your roller perches?
Click to expand...

Except that it gives the impression that you need a negative wedge kit for a 1" drop. In reality, such a kit (or aftermarket arms) is only needed when dropping the holes more than 1". After all, Shelby produced ~800 GT350's, with stock UCA's

Also, it says that it lowers the front 1". In reality it's about 1/2" (maybe it drops 1" if you drop them 1.75" per the Negative Wedge kit template).
 

65fastbackresto

Active Member
Apr 13, 2007
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Aug 28, 2007
#25
  • Aug 28, 2007
  • #25
That $199 price

is for a set, they are pretty sweet too.
 
7

70GT500SCJRcode

New Member
Aug 25, 2007
5
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Aug 28, 2007
#26
  • Aug 28, 2007
  • #26
$199 sounds a lot better than $320.

With all those mistakes in the article, I wonder how it got published. Thanks for the help.
 

Cyclone

Founding Member
Aug 17, 2002
124
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Chatsworth, California
Aug 28, 2007
#27
  • Aug 28, 2007
  • #27
which mistakes, what article?
 
S

Soaring1

Banned
Jan 3, 2003
144
1
0
Texas
Aug 28, 2007
#28
  • Aug 28, 2007
  • #28
Yeah, you are right about Klaus coming up with the theory, but it was Carroll who actually put it to use first. That's why it is called the Shelby drop. The rest of my statement is correct. It was designed to be used on the 65-66 Mustangs, not the later models.
 
D

Dazecars

Member
Jun 20, 2005
84
1
9
Aug 28, 2007
#29
  • Aug 28, 2007
  • #29
Soaring1 said:
but it was Carroll who actually put it to use first. That's why it is called the Shelby drop.
Click to expand...

If you read my post I said that. “passed the information on to Shelby who did the mod tell mid year in 66” Also as far as the name “Shelby Drop” if you do a search for “Shelby Drop” on the internet you will find many who call it the “Arning Drop” or the “Mustang UCA Drop”

Soaring1 said:
It was designed to be used on the 65-66 Mustangs, not the later models.
Click to expand...

You are correct it was designed for the first generation mustang... hmmm basically said that too.
any way the suspension is almost the same on a first generation mustangs and later models through 70 especially in regards to the mounting location of the UCAs, so it is doable and people have been doing it for years.

Soaring1 said:
never intended to be used on a 67 and up. That's why there is confusion about where to drill the holes on the 67 and up
Click to expand...

there is no confusion if you look at the template pictured below out of the Tony Branda catalog there is info out there showing exactly where to drill the holes

 
S

Soaring1

Banned
Jan 3, 2003
144
1
0
Texas
Aug 29, 2007
#30
  • Aug 29, 2007
  • #30
Dazecars said:
If you read my post I said that. “passed the information on to Shelby who did the mod tell mid year in 66” Also as far as the name “Shelby Drop” if you do a search for “Shelby Drop” on the internet you will find many who call it the “Arning Drop” or the “Mustang UCA Drop”



You are correct it was designed for the first generation mustang... hmmm basically said that too.
any way the suspension is almost the same on a first generation mustangs and later models through 70 especially in regards to the mounting location of the UCAs, so it is doable and people have been doing it for years.



there is no confusion if you look at the template pictured below out of the Tony Branda catalog there is info out there showing exactly where to drill the holes

Click to expand...
Hello Day. Sounds like you are having a good day. I just now got my disk brake kit. Now, it's grease under the fingernails time. BTW, that is the template for the 65-66 "Shelby" drop.
 
D

Dazecars

Member
Jun 20, 2005
84
1
9
Aug 29, 2007
#31
  • Aug 29, 2007
  • #31
which disc brake kit did you go with? There are two templates in the picture 65-66 on top and 67-70 on the bottom
 
7

70GT500SCJRcode

New Member
Aug 25, 2007
5
0
0
Aug 29, 2007
#32
  • Aug 29, 2007
  • #32
Cyclone said:
My Spring Saddle Perches are 50 times the quality as Open Tracker


Marlo's Frame & Alignment
http://www.Fly-Ford.com
818-341-0940
Click to expand...


Here is a PM I got from Cyclone yesterday. I'm not sure what to think of it.
To say your part is 50 times the quality than someone elses is saying a lot.
 

65fastbackresto

Active Member
Apr 13, 2007
1,229
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Aug 29, 2007
#33
  • Aug 29, 2007
  • #33
My roller spring perches

from opentracker look just fine, I dont know why or how a peice could look 50 times better.
 

Cyclone

Founding Member
Aug 17, 2002
124
0
0
Chatsworth, California
Aug 29, 2007
#34
  • Aug 29, 2007
  • #34
the article will appear in the October Issue of "Mustang Monthly"
Judge it for yourself as you already are, they are a very quality piece
1" stainless steel shaft and they are fully greaseable, you will never replace them again, My upper control arms are done the same way.
 
D

Dazecars

Member
Jun 20, 2005
84
1
9
Aug 29, 2007
#35
  • Aug 29, 2007
  • #35
70GT500SCJRcode said:
Here is a PM I got from Cyclone yesterday. I'm not sure what to think of it.
To say your part is 50 times the quality than someone elses is saying a lot.
Click to expand...

IMHO as some one who makes and sells suspension parts, the quality of your work should speak for its self and there should be no need to make comments like 50 times better than the competitor. I am sorry but there is no way to make a spring perch 50 times better!! maybe twice as good or three times as good, and that is if and ONLY if it was a stock perch not one that has been rollerized. 50 times better give me a break. There is nothing wrong with listing differences between your product and a competitor’s, and then letting the differences speak for them selves. Also at this point there is more than enough business to go around so why would some one want to build up there reputation with comments like that? I don't get it.
 

Cyclone

Founding Member
Aug 17, 2002
124
0
0
Chatsworth, California
Aug 29, 2007
#36
  • Aug 29, 2007
  • #36
No One has really seen them yet, and they are saying that everyone elses are better, I don't get tha either, Not here to argue.
 

Cyclone

Founding Member
Aug 17, 2002
124
0
0
Chatsworth, California
Aug 29, 2007
#37
  • Aug 29, 2007
  • #37
No One has really seen them yet, and they are saying that everyone elses are better, I don't get that either, Not here to argue.
 

2bav8

Founding Member
Nov 30, 1998
2,511
1
47
Mesa, AZ
Aug 29, 2007
#38
  • Aug 29, 2007
  • #38
Hey guys, were not going to have a vendor arguing match.
 

Tubo(2-bo)

Member
Mar 25, 2004
279
0
16
Ft Walton Beach FL.
Aug 29, 2007
#39
  • Aug 29, 2007
  • #39
Soaring1 said:
The Shelby drop was invented by Carroll Shelby to improve the handling on his GT 350 and was never intended to be used on a 67 and up. That's why there is confusion about where to drill the holes on the 67 and up.
Click to expand...
Actually, as has already been pointed out Carroll Shelby never invented the "drop"
It was developed by Klaus Arning, a Ford suspension engineer, for use on the Ford Factory Rally Team Falcons, 63-64-65. It was part of the "Tech", Ford turned over to CS, for the GT 350. Thats why so many of us refer to it as the "Arning Drop"
Glen, you'll have to watch yourself, the guys in this forum are pretty sharp.
 
S

Soaring1

Banned
Jan 3, 2003
144
1
0
Texas
Aug 29, 2007
#40
  • Aug 29, 2007
  • #40
Dazecars said:
which disc brake kit did you go with? There are two templates in the picture 65-66 on top and 67-70 on the bottom
Click to expand...
I got Degins (Dennis) kit. Looks like it is all there and all I need to do is take my Advil and Glucosamine and get to work. Both those templates look the same to me. What is the difference between the 65-66 and the 67 up template?
 
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