Dragging front brakes. $#@!
 

Hey, I discovered today that the hybrid GM/Ford brakes on my front Dynatrac
D44 are dragging slightly on the right side. I've been noticing over the
past few weeks a tendency for the Jeep to drift to the right slightly.
Figured I knocked something out of spec on the rocks. Today I drove it about
50 miles to the trails above Silverton, CO and it was acting unusually
squirrelly on the mountain roads heading up there, pulling to the right. I
started to wonder if a bearing was going in the right front, so when I got
to town I put my hand on the right front hub and it was hot as Hell, while
the left front was cool. I headed back home, pulled the r.f. wheel and found
the right side pads worn about twice those on the left. All this wear seems
to have happened in the last few weeks. I pulled the right front hub/rotor
and the bearings were perfect. I went ahead and cleaned & repacked them and
reinstalled everything with a new seal.
The piston on the right front caliper seemed a bit hard to open up, so it
seems it's applying ok, but not releasing completely. Oddly the brakes never
pull one way or the other, always stop straight & true, no squeals, etc.

Dynatrac said the calipers are for a 1971 - 78 Chevy/GMC K10/K20 pickup,
while the rotors are from a '79 F250. Anyone ever had any trouble with these
GM calipers? It's a real bummer, as the brakes have been great up until now
and I can't figure what might have happened. The fluid is fresh and nothings
been whacked. Any ideas are welcomed, as it is I'll head to the NAPA store
for a rebuilt caliper tomorrow.

Re: Dragging front brakes. $#@!
 

Jerry McG did pass the time by typing:
> Hey, I discovered today that the hybrid GM/Ford brakes on my front Dynatrac
> D44 are dragging slightly on the right side.

<snippies>

Check the caliper bolts/slides to see if they are worn and have notches.

Dirt or sludge in the caliper bore can prevent the piston from returning
when you let off the brake. Or the piston seal could be catching.
Hard to tell without taking it apart.

--
DougW

Re: Dragging front brakes. $#@!
 

Jerry McG did pass the time by typing:
> Hey, I discovered today that the hybrid GM/Ford brakes on my front Dynatrac
> D44 are dragging slightly on the right side.

<snippies>

Check the caliper bolts/slides to see if they are worn and have notches.

Dirt or sludge in the caliper bore can prevent the piston from returning
when you let off the brake. Or the piston seal could be catching.
Hard to tell without taking it apart.

--
DougW

Re: Dragging front brakes. $#@!
 

Jerry McG did pass the time by typing:
> Hey, I discovered today that the hybrid GM/Ford brakes on my front Dynatrac
> D44 are dragging slightly on the right side.

<snippies>

Check the caliper bolts/slides to see if they are worn and have notches.

Dirt or sludge in the caliper bore can prevent the piston from returning
when you let off the brake. Or the piston seal could be catching.
Hard to tell without taking it apart.

--
DougW

Re: Dragging front brakes. $#@!
 

Jerry McG did pass the time by typing:
> Hey, I discovered today that the hybrid GM/Ford brakes on my front Dynatrac
> D44 are dragging slightly on the right side.

<snippies>

Check the caliper bolts/slides to see if they are worn and have notches.

Dirt or sludge in the caliper bore can prevent the piston from returning
when you let off the brake. Or the piston seal could be catching.
Hard to tell without taking it apart.

--
DougW

Re: Dragging front brakes. $#@!
 

Hi Jerry,
Sounds like if you rebuild the piston and lube the slide like Doug
suggested you'll be find. You know there will always be a drag with that
type of caliber. Drag racers need that horse power so convert to the two
piston or the four piston '68 Mustang calibers:
http://www.----------.com/68MustangCaliber.jpg Ask your local speed shop
for installation instructions.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Jerry McG wrote:
>
> Hey, I discovered today that the hybrid GM/Ford brakes on my front Dynatrac
> D44 are dragging slightly on the right side. I've been noticing over the
> past few weeks a tendency for the Jeep to drift to the right slightly.
> Figured I knocked something out of spec on the rocks. Today I drove it about
> 50 miles to the trails above Silverton, CO and it was acting unusually
> squirrelly on the mountain roads heading up there, pulling to the right. I
> started to wonder if a bearing was going in the right front, so when I got
> to town I put my hand on the right front hub and it was hot as Hell, while
> the left front was cool. I headed back home, pulled the r.f. wheel and found
> the right side pads worn about twice those on the left. All this wear seems
> to have happened in the last few weeks. I pulled the right front hub/rotor
> and the bearings were perfect. I went ahead and cleaned & repacked them and
> reinstalled everything with a new seal.
> The piston on the right front caliper seemed a bit hard to open up, so it
> seems it's applying ok, but not releasing completely. Oddly the brakes never
> pull one way or the other, always stop straight & true, no squeals, etc.
>
> Dynatrac said the calipers are for a 1971 - 78 Chevy/GMC K10/K20 pickup,
> while the rotors are from a '79 F250. Anyone ever had any trouble with these
> GM calipers? It's a real bummer, as the brakes have been great up until now
> and I can't figure what might have happened. The fluid is fresh and nothings
> been whacked. Any ideas are welcomed, as it is I'll head to the NAPA store
> for a rebuilt caliper tomorrow.

Re: Dragging front brakes. $#@!
 

Hi Jerry,
Sounds like if you rebuild the piston and lube the slide like Doug
suggested you'll be find. You know there will always be a drag with that
type of caliber. Drag racers need that horse power so convert to the two
piston or the four piston '68 Mustang calibers:
http://www.----------.com/68MustangCaliber.jpg Ask your local speed shop
for installation instructions.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Jerry McG wrote:
>
> Hey, I discovered today that the hybrid GM/Ford brakes on my front Dynatrac
> D44 are dragging slightly on the right side. I've been noticing over the
> past few weeks a tendency for the Jeep to drift to the right slightly.
> Figured I knocked something out of spec on the rocks. Today I drove it about
> 50 miles to the trails above Silverton, CO and it was acting unusually
> squirrelly on the mountain roads heading up there, pulling to the right. I
> started to wonder if a bearing was going in the right front, so when I got
> to town I put my hand on the right front hub and it was hot as Hell, while
> the left front was cool. I headed back home, pulled the r.f. wheel and found
> the right side pads worn about twice those on the left. All this wear seems
> to have happened in the last few weeks. I pulled the right front hub/rotor
> and the bearings were perfect. I went ahead and cleaned & repacked them and
> reinstalled everything with a new seal.
> The piston on the right front caliper seemed a bit hard to open up, so it
> seems it's applying ok, but not releasing completely. Oddly the brakes never
> pull one way or the other, always stop straight & true, no squeals, etc.
>
> Dynatrac said the calipers are for a 1971 - 78 Chevy/GMC K10/K20 pickup,
> while the rotors are from a '79 F250. Anyone ever had any trouble with these
> GM calipers? It's a real bummer, as the brakes have been great up until now
> and I can't figure what might have happened. The fluid is fresh and nothings
> been whacked. Any ideas are welcomed, as it is I'll head to the NAPA store
> for a rebuilt caliper tomorrow.

Re: Dragging front brakes. $#@!
 

Hi Jerry,
Sounds like if you rebuild the piston and lube the slide like Doug
suggested you'll be find. You know there will always be a drag with that
type of caliber. Drag racers need that horse power so convert to the two
piston or the four piston '68 Mustang calibers:
http://www.----------.com/68MustangCaliber.jpg Ask your local speed shop
for installation instructions.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Jerry McG wrote:
>
> Hey, I discovered today that the hybrid GM/Ford brakes on my front Dynatrac
> D44 are dragging slightly on the right side. I've been noticing over the
> past few weeks a tendency for the Jeep to drift to the right slightly.
> Figured I knocked something out of spec on the rocks. Today I drove it about
> 50 miles to the trails above Silverton, CO and it was acting unusually
> squirrelly on the mountain roads heading up there, pulling to the right. I
> started to wonder if a bearing was going in the right front, so when I got
> to town I put my hand on the right front hub and it was hot as Hell, while
> the left front was cool. I headed back home, pulled the r.f. wheel and found
> the right side pads worn about twice those on the left. All this wear seems
> to have happened in the last few weeks. I pulled the right front hub/rotor
> and the bearings were perfect. I went ahead and cleaned & repacked them and
> reinstalled everything with a new seal.
> The piston on the right front caliper seemed a bit hard to open up, so it
> seems it's applying ok, but not releasing completely. Oddly the brakes never
> pull one way or the other, always stop straight & true, no squeals, etc.
>
> Dynatrac said the calipers are for a 1971 - 78 Chevy/GMC K10/K20 pickup,
> while the rotors are from a '79 F250. Anyone ever had any trouble with these
> GM calipers? It's a real bummer, as the brakes have been great up until now
> and I can't figure what might have happened. The fluid is fresh and nothings
> been whacked. Any ideas are welcomed, as it is I'll head to the NAPA store
> for a rebuilt caliper tomorrow.

Re: Dragging front brakes. $#@!
 

Hi Jerry,
Sounds like if you rebuild the piston and lube the slide like Doug
suggested you'll be find. You know there will always be a drag with that
type of caliber. Drag racers need that horse power so convert to the two
piston or the four piston '68 Mustang calibers:
http://www.----------.com/68MustangCaliber.jpg Ask your local speed shop
for installation instructions.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Jerry McG wrote:
>
> Hey, I discovered today that the hybrid GM/Ford brakes on my front Dynatrac
> D44 are dragging slightly on the right side. I've been noticing over the
> past few weeks a tendency for the Jeep to drift to the right slightly.
> Figured I knocked something out of spec on the rocks. Today I drove it about
> 50 miles to the trails above Silverton, CO and it was acting unusually
> squirrelly on the mountain roads heading up there, pulling to the right. I
> started to wonder if a bearing was going in the right front, so when I got
> to town I put my hand on the right front hub and it was hot as Hell, while
> the left front was cool. I headed back home, pulled the r.f. wheel and found
> the right side pads worn about twice those on the left. All this wear seems
> to have happened in the last few weeks. I pulled the right front hub/rotor
> and the bearings were perfect. I went ahead and cleaned & repacked them and
> reinstalled everything with a new seal.
> The piston on the right front caliper seemed a bit hard to open up, so it
> seems it's applying ok, but not releasing completely. Oddly the brakes never
> pull one way or the other, always stop straight & true, no squeals, etc.
>
> Dynatrac said the calipers are for a 1971 - 78 Chevy/GMC K10/K20 pickup,
> while the rotors are from a '79 F250. Anyone ever had any trouble with these
> GM calipers? It's a real bummer, as the brakes have been great up until now
> and I can't figure what might have happened. The fluid is fresh and nothings
> been whacked. Any ideas are welcomed, as it is I'll head to the NAPA store
> for a rebuilt caliper tomorrow.

Re: Dragging front brakes. $#@!
 

> Check the caliper bolts/slides to see if they are worn and have notches.>

They looked like new.

> Dirt or sludge in the caliper bore can prevent the piston from returning
when you let off the brake. Or the piston seal could be catching. Hard to
tell without taking it apart.>

Must have gotten soemthing in the piston bore. Weird part is they don't grab
or pull to the right when braking. I'm guessing they release but not all
the way.
> --
> DougW
>
>
>
>