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

[CoastChief]

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. 

[ghetdjc320]

What did they say didn’t fit?

[CoastChief]

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 

[Torq_Shep]

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

[Tex06]

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.

[CoastChief]

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 

[Minuit]

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.

 

 

 

 

[CoastChief]

[JustEmptyEveryPocket]

3 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.

This^^

[CoastChief]

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.

 

 

 

 

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

[CoastChief]

This look good to you guys? 
 

[CoastChief]

Should I order anything else just in case? 

[jdog]

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

[CoastChief]

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. 

[jdog]

Are you doing it yourself or taking it somewhere? Also not really needed unless there showing symptoms

[CoastChief]

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. 

[jdog]

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

[jdog]

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

[eaglescout526]

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. 

[Dzimm]

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.

 

 

 

[MiNi Beast]

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

[CoastChief]

34 minutes ago, MiNi Beast said:

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

yeah I'm gonna wait and go with Bendix 

[CoastChief]

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

 

[saveevryjp1998]

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. 

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.

That's what the passenger side looked like above.

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.