Brake rotor size

jojo6714 · 07-15-2005, 03:47 PM

I went to get Front brake rotors today. The guy asked me at the parts counter what size do I have? I am not sure what he is talking about. They had 2 sizes, I think he said a 9" and a 10" I hope I have the 9", because thats what I bought. The others were about 50 dollars more. Any Ideas?

FleXJ the Kid · 07-15-2005, 04:01 PM

Measure your old rotors. its actually easier than typing a thread. 10 inch rotors

jojo6714 · 07-15-2005, 06:39 PM

hard to measure my old rotors

, they are still on the jeep. Wow I wish I would have thought of that first. Anyone else?

tangofox007 · 07-15-2005, 08:16 PM

Somebody got their wires crossed here. The front rotors are 11 inches. The rear drums can be either 9 or 10 inches.
www.rockauto.com has rotors.

4SEVEN3 · 07-16-2005, 07:33 PM

I just bought some Brembo replacement rotors from Tire Rack. $35 ea.

I wouldnt mess with $10 rotors........thinner and not made as well. Dont mess with the safety of brakes!

greenbeater · 07-17-2005, 04:06 AM

i agree the fronts SHOULD be the same as any other and the rears usualy have a couple sizes but there are always the exeptions

jojo6714 · 07-18-2005, 07:11 PM

When I went in to get my rotors they asked what size front rotors I had. At that point I didn't know. So i bought them, got home and did my brakes. Turns out they were the right size.
-Now I have a new problem. When I was putting everthink back together the lower bolt on the passenger side striped out the threads on the hub assy. I think I am going to put in a heli-coil, or a rosean on it, I hope it works. This happen to anyone else? How did you fixe it?

**firefighter1c57** · 07-19-2005, 02:35 AM

Let me tell you what I went through. I keep either losing bolts, or breaking bolts.

Yes I torqued to spec, and yes I tried lock tite. Indeed up stripping threads, and drill a little off one time for the easy out.

Got pissed, so here is what I did. I went to Attwoods and got some either 7/16 or 3/8 grade 8# bolts. I don't remember which size. Then I drilled the holes in the outer knuckle and tapped for the larger bolts. Had to drill the sleeves for the caliper a little also. I bought the bolts to long, so I cut a little, about 1/2", off and ground the tip. Installed much larger stronger bolts, and havn't had any problems since.
Plus the Attwoods grade 8# have a shinny blue anadizoed coating.

jojo6714 · 07-19-2005, 10:11 AM

Yeah this is turning into a PITA. I have a plan, just need to get the time to do it. I have a 5/16 grade 8 bolt, I am going to helicoil it. Just a lot of work, and not enought time this week.

07-15-2005, 04:01 PM	#2
FleXJ the Kid Registered User Join Date: Jun 2005 Location: Albuquerque, New Mexico Posts: 175 Profile Gallery Classifieds My Jeeps	Measure your old rotors. its actually easier than typing a thread. 10 inch rotors __________________ '88 Cherokee Pioneer Rebuilt 4.0 litre (bored .030 over) Homemade cold-air K&N cone filter Empty cat, Flowmaster Rubicon Express 4.5" with leaves BA-10 Tranny/NP 231 TC Non-Disconnect Dana 30, Dana 44 regeared to 4.10 33x12.5 BFG MT's on Black Rock Krawler rims (3.75" BS)

07-15-2005, 06:39 PM	#3
jojo6714 Registered User Join Date: Mar 2005 Location: Brunswick, ME Posts: 371 Profile Gallery Classifieds My Jeeps	hard to measure my old rotors , they are still on the jeep. Wow I wish I would have thought of that first. Anyone else? __________________ 97 XJ 4.0 Sport K&N Cone filter / Stock air tube Cat back, FlowMaster Super 40 2.75+" BB Lift 30x9.50x15 MT Twisted Headlight Harness [SIZE=3][COLOR=DarkGreen]Green Jeep Club Member #161[/COLOR][/SIZE] [COLOR=Navy][SIZE=3][B]NAVY Jeep Club #22[/B][/SIZE][/COLOR]

07-15-2005, 08:16 PM	#4
tangofox007 Web Wheeler Join Date: May 2005 Location: GA Posts: 5,933 Profile Gallery Classifieds My Jeeps	Somebody got their wires crossed here. The front rotors are 11 inches. The rear drums can be either 9 or 10 inches. www.rockauto.com has rotors. Last edited by tangofox007; 07-16-2005 at 11:20 PM..

07-18-2005, 07:11 PM	#7
jojo6714 Registered User Join Date: Mar 2005 Location: Brunswick, ME Posts: 371 Profile Gallery Classifieds My Jeeps	When I went in to get my rotors they asked what size front rotors I had. At that point I didn't know. So i bought them, got home and did my brakes. Turns out they were the right size. -Now I have a new problem. When I was putting everthink back together the lower bolt on the passenger side striped out the threads on the hub assy. I think I am going to put in a heli-coil, or a rosean on it, I hope it works. This happen to anyone else? How did you fixe it? __________________ 97 XJ 4.0 Sport K&N Cone filter / Stock air tube Cat back, FlowMaster Super 40 2.75+" BB Lift 30x9.50x15 MT Twisted Headlight Harness [SIZE=3][COLOR=DarkGreen]Green Jeep Club Member #161[/COLOR][/SIZE] [COLOR=Navy][SIZE=3][B]NAVY Jeep Club #22[/B][/SIZE][/COLOR]

07-19-2005, 02:35 AM	#8
firefighter1c57 SPACE FOR RENT Join Date: May 2005 Location: OOOklahoma Posts: 982 Profile Gallery Classifieds My Jeeps	Let me tell you what I went through. I keep either losing bolts, or breaking bolts. Yes I torqued to spec, and yes I tried lock tite. Indeed up stripping threads, and drill a little off one time for the easy out. Got pissed, so here is what I did. I went to Attwoods and got some either 7/16 or 3/8 grade 8# bolts. I don't remember which size. Then I drilled the holes in the outer knuckle and tapped for the larger bolts. Had to drill the sleeves for the caliper a little also. I bought the bolts to long, so I cut a little, about 1/2", off and ground the tip. Installed much larger stronger bolts, and havn't had any problems since. Plus the Attwoods grade 8# have a shinny blue anadizoed coating. __________________ piks I bring NOTHING to the table.

07-19-2005, 10:11 AM	#9
jojo6714 Registered User Join Date: Mar 2005 Location: Brunswick, ME Posts: 371 Profile Gallery Classifieds My Jeeps	Yeah this is turning into a PITA. I have a plan, just need to get the time to do it. I have a 5/16 grade 8 bolt, I am going to helicoil it. Just a lot of work, and not enought time this week. __________________ 97 XJ 4.0 Sport K&N Cone filter / Stock air tube Cat back, FlowMaster Super 40 2.75+" BB Lift 30x9.50x15 MT Twisted Headlight Harness [SIZE=3][COLOR=DarkGreen]Green Jeep Club Member #161[/COLOR][/SIZE] [COLOR=Navy][SIZE=3][B]NAVY Jeep Club #22[/B][/SIZE][/COLOR]