Nut size on Caliper mount - '01 Jeep Grand Cherokee - 6 cylynder

so we find it is hex.
and not torx
and is not 12 and not 10
but is 11.
its 11mm allen hex.
i just did mine but my sets are complete and had no issues, but I do know the cheaper sets skip sizes.

my socket set goes to 1-1/4": and 36mm.
my e-torx kit has all sizes, one can need.
with no sets. you must measure them. it's not covered in the FSM.
only 175ft/lbs on the axle nut and need for a torque wrench that big.
kit 1:
http://www.sears.com/titan-tools-13-pc-e-torx-socket-set/p-00926107000P?sid=IDx01192011x000001&kpid=00926107000&kispla=00926107000P

the better question is ,is the axle nut SAE or metric.
most real Chrysler built are metric.
so that big nut, at that torque needs 1/2' drive
and the torque wrench to match.
id bet this covers that
http://www.harborfreight.com/13-piece-12-drive-metric-deep-wall-impact-socket-set-67904.html

you could off the hub cap and measure the nut, with a metric rule.
the external torx same. with a caliper measure the head.
then use the e-torx table to mach it.
bet the first ever to post that. its rare to ask.
most folks just have the 2 sets. ( a life time investment if ever there was)
here is the table i uses, if ever
http://en.wikipedia.org/wiki/Torx

good luck working with only 2 bits.

Hi there:
Your VIN code refer at one 1998 Jeep Grand Cherokee Laredo 4x4 4.0L 6-cyl. Quadra-Trac, then, according with this, you must pay attention to the Standard tire size (in case of different tires in front and rear the dimensional data are valid for driving or rear wheels):
Standard tire size: P 215/75 R 15
Tire width (mm): 215
Tire sidewall factor: 75
Rim size (in): 15

Total wheel diameter (mm / in): 704 / 27.7

Hope this helps.

Removal

1. Raise and support the vehicle.
2. Remove the wheel and tire assembly.
3. Remove the brake caliper, caliper anchor, rotor and ABS wheel speed sensor.
4. Remove the cotter pin, nut retainer and axle hub nut.
5. Remove the hub/bearing mounting bolts from the back of the steering knuckle. Remove hub/bearing from the steering knuckle and off the axle shaft.

Installation

1. Install the hub/bearing to the knuckle.
2. Install the hub/bearing-to-knuckle bolts and tighten to specification.
3. Install the hub washer and nut. Tighten the hub nut to specification. Install the nut retainer and a new cotter pin.
4. Install the brake rotor, caliper anchor, caliper and ABS wheel speed sensor.
5. Install the wheel and tire assembly.
6. Remove the support and lower the vehicle.

10 mm socket to remove the caliper slide bolts, a decent sized screwdriver to pry the caliper up off the rotor and a large "c" clamp to drive the piston back into the caliper housing so the new pads will fit over the rotor. Use an old pad over the caliper piston when driving it back in so you don't damage it, be careful not to pinch the piston boot under the new pad and make sure the slides move and that you use some grease on the slide bolts when putting them back in. Also be careful not to cross-thread the pins when re-installing. After you have finished, step on the brake a few times to get the pads into position and remove any excessive clearance. If you don't open the hydraulic system, no bleeding is necessary.
Rears are more complicated so get a haynes or chilton manual for that.

penetrating fluid and a bigger ratchet. ex. breaker bar

FRONT:
Removal & Installation

1. Remove the nut, retainer and grommet from the shock stud in the engine compartment.
   
2. Raise and support the front axle.
   
3. Remove the lower mounting nuts from the axle bracket.
   
4. Remove the shock absorber.
   

To install:

1. Position the lower retainer and grommet on the shock stud. Insert the shock absorber through the shock tower hole.
   
2. Install the lower shock studs into the axle bracket.
   
3. Install the mounting nuts and tighten to 250 in. lbs. (28 Nm).
   
4. Remove support and lower the vehicle.
   
5. Install the upper grommet, retainer and nut on the stud in the engine compartment.
   

Rear:

Removal & Installation

1. Before servicing the vehicle, please familiarize yourself with safety procedures.
   
2. Remove or disconnect the following:
   
   • Upper locknut and washer from the frame bracket stud, on the Grand Cherokee
     
   • Lower bolt, nut and washers from the axle shaft tube bracket
     
   • Shock absorber
     

To install:

1. Place the shock absorber upper end in position and tighten the fasteners to the following specifications:
   
   • Cherokee: 17 ft. lbs. (23 Nm)
     
   • 1999–01 Grand Cherokee:68 ft. lbs. (92 Nm)
     
   • 2002–04 Grand Cherokee: 80 ft. lbs. (108 Nm).
     
   • 2005 Grand Cherokee: 70 ft. lbs. (95 Nm).
     
2. Place the shock absorber lower end in position and tighten the fasteners to the following specifications:
   
   • Cherokee: 46 ft. lbs. (62 Nm)
     
   • 1999–01 Grand Cherokee:68 ft. lbs. (92 Nm)
     
   • 2002–05 Grand Cherokee: 115 Nm (85 Nm).
     
   please do not hesitate to ask any further questions about your vehicle i would be glad to help you.
3. do not forget to rate and comment about your experience with fixya...
   

Normally, to remove a front rotor you remove tire, then must remove the caliper.

To remove caliper, there are two screws that the caliper is secured with that are accessed from the back side of the caliper. Unscrew these, pull all of the way out. The caliper should then be free to be slid out of it's position and off of the rotor. You'll need to support the caliper somehow. Most magazine show using heavy wire to hang it, I often take a small bucket upside down to set it on so the brake hose is not stressed.

Most front wheel drive & I think 4-WD vehicles, the rotor will slip right off. If not and there is a grease cup covering the center of the hub, will need to pop this off with a screw driver. Then remove the retaining clip that is inserted thru the threaded shaft to prevent the nut that is exposed from working it's way loose. Remove the nut, and now the rotor will come right off.

Re-assembling this nut at the right torgue is a key to getting everything back together properly. Too tight, you burn up the bearings and hurt fuel economy. Too loose and the tire wobbles, excessive wear, lot of issues.

I want to say yes compare the sizes and the water inlets and outlets to determine if it does. I am sure it will.

they can be hard they sell a fan wrech special set up but it usally slips. put the right size wrench (its big) on the nut and from the front of the vehicle wack the wrench with a hammer tword the passengers side of the vehicle Leave the belt on to help with tention