Jump to content

Wrong Rotors? - SOLVED- Break Pads and Rotors for 1988 Jeep Comanche RWD


Recommended Posts

I have purchased Crown J3251156 Front Brake Rotors to replace my warn out ones. I could not get the old calipers off so I took it to a trusted break shop. They told me that these were the wrong rotors. Embarrassed I looked it up and it said it was designed to fit for MJ. Wanted to get everyone's opinion. 

39C7A6B9-6806-493D-BC86-6357C6F8D1FD.jpeg

9F047DA9-AD01-4967-A10B-2E93BD527993.jpeg

0734EDC3-1EE0-4251-8C1F-00ED99DFD8E7.jpeg

B8078D14-4D6A-4788-96B4-9DE8D16F2901.jpeg

B503A815-FFFC-41C6-BB4F-CE3F01E6D89A.jpeg

923672CF-D9BC-4DCD-A9A5-FCE6D843359C.jpeg

3FFFC6BF-A6F7-4E99-B371-8371C42BED3F.jpeg

3751B2FB-FEC0-4B5C-B837-D7232840B8E3.jpeg

Link to post
Share on other sites

Here are pictures of the rotors and the replacements I ordered thinking the first were incorrect. 
 

they told me my car needed totally different rotors and that my pads needed clips. I mentioned that all the pads I looked up for my year didn’t have them. They laughed and told me the parts don’t fit. I figured I wouldn’t argue with someone older than me who works on cars for a living. Although when I look it up it says it fits Renix  MJ 

75146602-1FC1-4451-892D-D481C4823B1F.jpeg

FE9B9F9C-B324-4DFC-AC66-697B25167267.png

Link to post
Share on other sites
Just now, Torq_Shep said:

 I would ask him to show you the removed rotor next to the new rotor... 

This. Also, it is possible that the front axle has been swapped......these trucks do get modified quite a bit.

Link to post
Share on other sites

I think the only thing modified on the truck is the cooling system, trailer hitch, Everything’s pretty much original outside of that. 
 

I’ll run down and take a picture 

Link to post
Share on other sites

Those are 4WD rotors. 2WD front axles have "captive" front rotors which the wheel bearings fit into. You'll need to specifically order rotors for a 2WD truck. The "clips" the mechanic refers to can be called several things, but "anti rattle clips" or "pad support springs" are probably the most common.

 

BR5113_1__ra_p.jpg

 

H5439_FRO__ra_p.jpg

 

 

Link to post
Share on other sites
45 minutes ago, Minuit said:

Those are 4WD rotors. 2WD front axles have "captive" front rotors which the wheel bearings fit into. You'll need to specifically order rotors for a 2WD truck. The "clips" the mechanic refers to can be called several things, but "anti rattle clips" or "pad support springs" are probably the most common.

 

BR5113_1__ra_p.jpg

 

H5439_FRO__ra_p.jpg

 

 

Wow those look like exactly what I need!  Thank you so much ! This is what I get for ordering through autozone! 

Link to post
Share on other sites
53 minutes ago, jdog said:

Is there a reason your getting a caliper service kit? I would look into bearings

I just figured mine are probably old also. Should I avoid it? I will defiantly add the wheel bearings. 

Link to post
Share on other sites

want to do it myself, but I figure with its age/ my in experience Id take it in to be looked over. 

 

 

thank you for the help !

 

 

@jdog

Here is my list so far. I was going to go with the Bendix but it won't get here in time. 

249F10AE-7766-42A3-A3F2-40439DA328AD.jpeg.345ef3e29435752f711be430d6945883.jpeg46E09DE1-45C3-40A4-AA77-EE26F2086DB0.jpeg.eb495a006a4e6a3ac971bb83e4425116.jpeg

Link to post
Share on other sites

Looks good, if you wanna see what all entails for caliper rebuild I just did mine in my build, I believe last page

Link to post
Share on other sites

Only reason I ask about who's doing it, unless it's a older shop, most new shops or quick brake places will just recommend caliper replacement rather then rebuild

Link to post
Share on other sites
1 hour ago, CoastChief said:

want to do it myself, but I figure with its age/ my in experience Id take it in to be looked over.


I still haven’t done my rotors yet and I’m pretty sure the bearings are just about shot. Like I can hear metal on metal with them when turning or decelerating. 

Link to post
Share on other sites
1 hour ago, CoastChief said:

 

Here is all the info you need for this brake setup.  Be sure to follow the torquing procedure, it's very important that the bearings are properly torqued.

 

 

 

Link to post
Share on other sites
34 minutes ago, MiNi Beast said:

Give me a break already, :rolleyes: you want Jeep brakes to work use oem. :nuts:

yeah I'm gonna wait and go with Bendix 

Link to post
Share on other sites

Here is the final list with part numbers for anyone whos looking, thank you guys!

 

 

 

  Part Number Part Type Price EA Core EA Quantity Total
1988 JEEP COMANCHE 4.0L 242cid L6
BENDIX PRT1481 Rotor $ 39.79 $ 0.00 2 $ 79.58
CARLSON H11772 (H1177-2) Brake Pad Retaining Clip $ 0.67 $ 0.00 1 $ 0.67
CARLSON H5029 Caliper Slide Pin $ 2.62 $ 0.00 2 $ 5.24
CENTRIC 14358004 (143.58004) Caliper Repair Kit $ 2.55 $ 0.00 2 $ 5.10
CENTRIC 11756001 (117.56001) Disc Brake Hardware Kit $ 6.85 $ 0.00 1 $ 6.85
CENTRIC 10402030 (104.02030) Brake Pad $ 21.79 $ 0.00 1 $ 21.79
TIMKEN SET2 Wheel Bearing $ 4.48 $ 0.00 2 $ 8.96
TIMKEN SET6 Wheel Bearing $ 5.05 $ 0.00 2 $ 10.10
WJB WS6815 Wheel Seal $ 0.59 $ 0.00 2 $ 1.18
Shipping Ground $ 32.98
Tax   $ 16.38
Order Total   $ 188.83
Visa   -$ 188.83
Balance Due   $ 0.00

 

Link to post
Share on other sites
  • CoastChief changed the title to Wrong Rotors? - SOLVED- Break Pads and Rotors for 1988 Jeep Comanche RWD

My daily has been down same reasons. I scrapped 2 good sets of spindle knuckles a month ago figuring I was stacked between 4 2wd beams between all my heeps here and storage 3 hours away but no bueno and I'm going to end up running a so so passenger side. I think after looking at several and finally knowing what a perfect one looks like, most if not all will have prematurely seals go and bearings right of the bat at torque procedure. These must be perfect tolerance is my guess at base of spindle to not have failure. 20210502_152706.jpg.bec744487569cd9e19e64a8da6ab022e.jpg

There should be a perfectly smooth surface from base to spindle. Nearly every one I pulled of my 8 total other than this had some kind of grooving taking place. I was so lucky. I must have had a bearing go bad or something. My brakes seemed week commuting home on Thursday night. By Friday morning commute I felt a shimmy dropping my wife off. It still wasn't bad. I actually ordered parts to redo the hubs and brakes thinking I should since it had been over 20 thousand miles. I pulled the driver tire to see my top rotor mounting bolt double sheered, my inside rim grooved, and rotor/bracket half gone. I'm lucky they were factory steel wheels I'm guessing and not aluminum. The cast seemed to wear since its softer metal which probably saved my butt and I caught it basically within 50 miles of it happening on local 45 mph roads.20210502_152716.jpg.7d08b83ffc41ef3e8ed54d9890a88a8d.jpg

That's what the passenger side looked like above.20210502_152730.jpg.36156db210d855c47cf2bd51c9d97083.jpg

That very minor wear was the driver. You wouldn't know that either is no good except for maybe the passenger one unless you had a perfect to compare like the top. I literally drove to my storage 3 hours away and back in a rental car to pull and check my other passenger ones since my donor here was no good on that side. So I have 1 bad for sure and 3 started to groove or more grooved than the one in the pic. I'm forced to run it but I know I'm going to have to plan on replacement of that hub like clockwork and often. Obviously it's not a drastic feeling or noise it gives as it starts to go. By the way after 24,000 miles my pads were still 2/3 there. And rotors were looking good like 85-90% so DO NOT assume like I did. I was very lucky.

20210502_152951_HDR.jpg

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...