need front brake advise on duelly 4x4

[drives mopars]

i have a bad wheel vibration feels like
front wheels go back and forth, when iam on brakes usually down hills, i almost have to stop to get it to stop shacking, peddle
feels ok, anyway i want to service front
brakes, is there any thing special i need to know? special tools ect to pull hubs
rotars , rebuild calpers. any thing in should up grade, brake pads r ok , possible
shake is out of round rotors?

anyhelp is appreciated, bill



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1993 w350 ex cab, banks,nv 4500 in
open exaust, pw Injectors are in. Big rig flaps,tach in,. Its loud and goes ok, for a 93,Ham radio Call KK6dm
has ability to communicate any where in the world. Headliner shelf
5 antenna's

 

[R.E. Miller]

Yeah, both of my trucks do this, but not when I am on the brakes, often it is when I am turning? #ad
Don't know what's-up here, both of my trucks are dually, maybe that is the root of the problem. I have my trucks aligned by a good shop regularly but still this happens #ad
Oh well.

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1992 W-350 Club Cab Dually 3. 5" straight pipe(thanks jardine!)
W-350 8' contractors dump with 3. 5"BD exhaust, 16cm^2 housing, DI pyro&boost
Russell

 

[Paul Herioux]

Bill,
Sound like you have a set of warped(out of round) rotors. The will need to be removed and turned. Most good parts stores have a brake lathe and will turn them fairely cheap. The only special tool you will need is a large socket for the spindle nuts- I believe it is 2 9/16 inch. I have used a punch and hammer in a pinch before- a little tedious and cosmetically destuctive but it works. Don't forget to repack wheel bearing while your in there. Have fun, piece of cake.


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89 w250, 47rh trans, cleaned up exhaust, Dynomax bullet muffer, 3" lift

 

[GeneH]

Bill I would recommend having the factory service manual on hand.
NAPA will have the front axle nut socket.
Once the locking hub is removed the spindle nut has a small pin that fits into the face of the socket, its easy to brake this pin if the socket slips(been there done that).
I believe that the rotors will be truer if they are turned while still on the front axle.
Gene
92 350 4x4

 

[drives mopars]

great but, how do ya turn them
on the truck if you want to do the work
yourself. can i do my work 1st , then
have a shop turn and install pads.

anymore info in clip? maybe ill buy 1 st

thanks bill

 

[Racer Brown]

Hey Drivers Mopar. I just did this to my 93 about a month ago. The service manual would help if you're kinda new at this. As for turning the rotors on the truck, yes, this is the best way as far as keeping them true when they are machined. However, in the "real world" (which is where I live) I've never seen that setup no have I used it. I turned mine on an Amco brake lathe and kept working with the setup until I got them "close to zero runout". They've done fine since I turned them and I don't see any problems with this method. You may want to go with some high dollar pads. I chose the Performance Friction Carbon Metalic pads for mine as I need as much stopping power as I can get with the 7k lb trailer that I pull with the somewhat inefficent electric brakes on it. Make sure that you wire brush the caliper mounts and install some silicone grease on these contact points as the caliper has to "float" to operate properly. Have fun!... ... ... .....

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Ken-1993 W350, Cummins TD, 5 Speed, 4X4, Club Cab, LE, K&N, Straight Pipe.
http://users. lynchburg.net/ken0069

 

[bighorn]

Another consideration-the wheel action that you're feeling may not be the brakes, but the steering column shaft to the geer box connection at the little box just out of the steering gearbox, they wear out, and can be replaced with N. O. S. parts or a replacement borgenson shaft. One more thing- that heavy engine may have weekend the springs up front enough so they flatten out- subsequently changing the pitch of the front axle, which would alter the caster and the camber to some degree. No helper springs will bring the axle pitch back- you'll need to replace the springs or have them rearched. Axel wedges available thru NAPA are a temporary fix to return ths pitch back to homebase.

 

[R.E. Miller]

Thanks for the info Bighorn, I knew it was probably something else. What about spring bushings? Do you have the borgeson shaft? My trucks do the hop thing only while turning.

 

[bighorn]

I haven't gone the borgenson route yet, although it looks like a good product. My truck isn't acting up currently... my suggestions are from experiences with old vehicles and straight axels. The bushings could be another place to check. .

 

[mark93]

I had this problem and turned the rotors and set the wheel bearings with ZERO play and it didn't happen because braking anymore. But when finishing a turn and hitting a bumpy section of road and it was shook worse. New tires have completed the fix. The service manual mentions worn tires, not necessarily worn out, can cause this problem and my experience is that is correct.

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'93 W350 Club Cab, Bright White, 5 sp. , 136K, Factory Options: LE package, 4. 10 Limited Slip, 7600 lb. rear springs, tachometer, front stabilizer bar. Mods: Banks stinger plus, Linex bedliner, 25,000 lb gooseneck ball, 10,000 lb receiver, Tekonsha brake controller, POWER WAGON injectors-WAY faster than stock!.

 

[drives mopars]

i already have the borgenson shaft
only hard part was to drill file a aligmnent
hole on end of shaft on box
took 1/2 hour . i did this b4 wheel shimmy

i only get shimmy when on brakes

not sure if it does it hitting bumps not on brakes will try to see if it does it then

 

[sam peterson]

You could have looseness in the front end that would show up when the rotors are warped. Have them turned on a good brake lathe chucked into the wheel bearing races. That is the most accurate on you kind of rotors. Use carbom met pads & be sure to clean or replace the hardware. If you have lots of miles your calipers may need to be rebuilt. Flush the fluid.

 

[feets]

If you get a shimmy while turning or going over bumps, it's likely that your steering stabilizer is showing it's age. It's that sideways mounted shock lookin' thingie on the steering components.
When it gives up the ghost, you end up all over the road after bumps and such.

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'92 D250 Club Cab "tweaked", '65 Plymouth Max Wedge clone twin turbo 440 4 speed, and high powered plinkers!
Too much power is just right!

 

[drives mopars]

dont have steering stabizer,
want to try to fix w/o it 1st