Q's about granada/GM brake swap

S

seanm

New Member

Nov 1, 2003

22

0

0

ohio

Mar 9, 2004

#1

• Mar 9, 2004

• #1

Have put the granada rotors and GM small calipers on and there is alot of free travel between the pads and rotor. About a 1/4" as a guess. Do they need to be shimmed or something? What is used for shims if they do?

Thanks

 

D

dmoody

Founding Member

Nov 4, 2002

789

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17

Winston-Salem, NC

Mar 9, 2004

#2

• Mar 9, 2004

• #2

There should be some distance between them when you first put them on. Otherwise you'd have a hard time getting them on there. As you use the brakes, the pistons will come out close to the rotors. In my experiences, a quarter inch is acceptable w/ new pads especially if the pistons are fully compressed into the calipers.

d

 

Wart

I'm Mad as HELL and I'M not Gonna Take it ANYMORE!

Founding Member

Sep 1, 1998

408

3

58

NE Ohio

Mar 9, 2004

#3

• Mar 9, 2004

• #3

Some swap kits come with a spacer to address this problem.

 

S

seanm

New Member

Nov 1, 2003

22

0

0

ohio

Mar 10, 2004

#4

• Mar 10, 2004

• #4

Thanks. I'll give it a try, but get some shims just in case.

 

Blue Thunder

15 Year Member

Mar 20, 2004

1,003

55

68

Upstate New York.

Mar 20, 2004

#5

• Mar 20, 2004

• #5

I've been considering this swap for my MII, but why don't people just use the granada calipers, too?

 

Wart

I'm Mad as HELL and I'M not Gonna Take it ANYMORE!

Founding Member

Sep 1, 1998

408

3

58

NE Ohio

Mar 20, 2004

#6

• Mar 20, 2004

• #6

Because their the same caliper.

 

cobra_2_76

Founding Member

Aug 24, 1999

201

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0

Norwalk, Ohio

Mar 20, 2004

#7

• Mar 20, 2004

• #7

Generally those of us with the Granada front rotors were looking for more braking area on the front wheels. A larger caliper only achieves better stops when larger calipers and pads are used to match the size of the Granada rotors.

I did my 4 wheel conversion increase my braking abilities and at the same time open up my wheel selection to the standard 5 lug versions.

Dave

 

Blue Thunder

15 Year Member

Mar 20, 2004

1,003

55

68

Upstate New York.

Mar 20, 2004

#8

• Mar 20, 2004

• #8

Oh, I never checked the size of the granada calipers, I assumed they were larger than MII calipers, since the car is much heavier.

 

welder4956

20+ Year Stangneter

Nov 28, 2003

230

95

38

Birmingham, AL

Mar 20, 2004

#9

• Mar 20, 2004

• #9

cobra_2_76 said:

Generally those of us with the Granada front rotors were looking for more braking area on the front wheels. A larger caliper only achieves better stops when larger calipers and pads are used to match the size of the Granada rotors.

Click to expand...

Don't forget that just increasing rotor diameter also increases the lever arm for braking. A change from 9" to 11" rotors represents a 20% increase in the lever arm. This would be an improvement even if the same size calipers were used.

 

Blue Thunder

15 Year Member

Mar 20, 2004

1,003

55

68

Upstate New York.

Mar 21, 2004

#10

• Mar 21, 2004

• #10

welder4956 said:

Don't forget that just increasing rotor diameter also increases the lever arm for braking. A change from 9" to 11" rotors represents a 20% increase in the lever arm. This would be an improvement even if the same size calipers were used.

Click to expand...

Also, the larger rotors will disipate heat quicker, which will not only provide more braking power, but will help prevent rotor warping.

 

75stang302

Founding Member

Mar 31, 2002

1,036

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36

u.s.a.

Mar 21, 2004

#11

• Mar 21, 2004

• #11

i believe the reason for the gm calipers is because the are easy to make a mount for, the gm calipers use a floating pin were the fords have to have a machined grove

 

Blue Thunder

15 Year Member

Mar 20, 2004

1,003

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68

Upstate New York.

Mar 21, 2004

#12

• Mar 21, 2004

• #12

But.. they're .. GM parts.. ugh.

 

78CobraII

Moderator

Jul 31, 1998

1,808

8

39

Birmingham, AL

Mar 21, 2004

#13

• Mar 21, 2004

• #13

I believe that Wilwood makes similar calipers...just without the GM part number.

 

Wart

I'm Mad as HELL and I'M not Gonna Take it ANYMORE!

Founding Member

Sep 1, 1998

408

3

58

NE Ohio

Mar 21, 2004

#14

• Mar 21, 2004

• #14

Blue Thunder said:

But.. they're .. GM parts.. ugh.

Click to expand...

I don't know, ....

The box says Wagner ....