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-   -   What size front Brake Rotors do I have? (http://www.jeepforum.com/forum/f9/what-size-front-brake-rotors-do-i-have-628016/)

0IIIII0 11-05-2008 09:46 AM

What size front Brake Rotors do I have?
 
I have a 99 Jeep Sahara. I am in the market to purchase some new rotors, pads, and possilby calipers. While researching different option, I discovered R1 Concepts INC. on EBAY. For the 99 model, they offer both a 78mm or 82mm size Rotor. How do I know which one I have? Second... Is this a repretable company to buy from? Has anyone ever bought from them. They are offering a performace FRONT Slotted/Drilled Rotors with Ceramic pads for $136.75 + $35.56 shipping. Is this a good deal? Thanks for the help.

Here is a link to the ebay auction to see the Rotors...

http://cgi.ebay.com/ebaymotors/_Car-...1%7C240%3A1318

jeepnmike 11-05-2008 09:59 AM

It was a nightmare when I went to put new front rotors on my 99. After going to Advance Auto and getting the wrong size(they were offset too much), I went to the dealer. They gave me the wrong size too. It took another trip to the dealer to finally get it right. After all that, I am so confused that I have no idea what size fits anymore. It's going to depend when your TJ was made in 99...sorry I wasn't much help but good luck man.

00jeepred 11-05-2008 10:03 AM

Quote:

Originally Posted by jeepnmike (Post 5953320)
It was a nightmare when I went to put new front rotors on my 99. After going to Advance Auto and getting the wrong size(they were offset too much), I went to the dealer. They gave me the wrong size too. It took another trip to the dealer to finally get it right. After all that, I am so confused that I have no idea what size fits anymore. It's going to depend when your TJ was made in 99...sorry I wasn't much help but good luck man.

i haven't replaced my rotors but i had the same prob with an alternator..the serpantine belt and idler pully. I think they mix matched them in certain years...Sorry for the hi-jack.

mrblaine 11-05-2008 10:09 AM

Quote:

Originally Posted by 0IIIII0 (Post 5953256)
I have a 99 Jeep Sahara. I am in the market to purchase some new rotors, pads, and possilby calipers. While researching different option, I discovered R1 Concepts INC. on EBAY. For the 99 model, they offer both a 78mm or 82mm size Rotor. How do I know which one I have? Second... Is this a repretable company to buy from? Has anyone ever bought from them. They are offering a performace FRONT Slotted/Drilled Rotors with Ceramic pads for $136.75 + $35.56 shipping. Is this a good deal? Thanks for the help.

Here is a link to the ebay auction to see the Rotors...

http://cgi.ebay.com/ebaymotors/_Car-...1%7C240%3A1318

You have the year they did the split for the two different rotor heights in. The only way you will know is to take one off and measure it. Lay it down on the rotor with the hat up. Stick a tape measure down through the hole in the rotor hat and measure the overall height.

One will be just a tad over 3" and the other will be just a tad over 3 3/16".

RockRodHooligan 11-05-2008 10:10 AM

Quote:

Originally Posted by 0IIIII0 (Post 5953256)
I have a 99 Jeep Sahara. I am in the market to purchase some new rotors, pads, and possilby calipers. While researching different option, I discovered R1 Concepts INC. on EBAY. For the 99 model, they offer both a 78mm or 82mm size Rotor. How do I know which one I have? Second... Is this a repretable company to buy from? Has anyone ever bought from them. They are offering a performace FRONT Slotted/Drilled Rotors with Ceramic pads for $136.75 + $35.56 shipping. Is this a good deal? Thanks for the help.

Here is a link to the ebay auction to see the Rotors...

http://cgi.ebay.com/ebaymotors/_Car-...1%7C240%3A1318

About the only thing slotted/cross drilled rotors would be good for is someplace for mud to go instead of the contact patch between the pad and rotor, and thats stretching it. Save your money and get regular rotors, though I would opt for the ceramic pads.

0IIIII0 11-05-2008 10:27 AM

Quote:

Originally Posted by mrblaine (Post 5953389)
You have the year they did the split for the two different rotor heights in. The only way you will know is to take one off and measure it. Lay it down on the rotor with the hat up. Stick a tape measure down through the hole in the rotor hat and measure the overall height.

One will be just a tad over 3" and the other will be just a tad over 3 3/16".


Thanks for the info. I assume that I measure the Diameter of the rotor to get either 78mm or 82mm? What did your total brake conversion cost you? I was considering the rear disk conversion kit from Quadratec. It runs a bit over $500.00 though.

As for slotted or not slotted rotors, I agree. I will likely save the extra $75.00 and go with the OEM rotors. Thanks for all the info. If you have anything further to add, please do...

mrblaine 11-05-2008 10:33 AM

Quote:

Originally Posted by 0IIIII0 (Post 5953492)
If you have anything further to add, please do...


If you can't understand what I wrote, then hire someone to fix your brakes.

RockRodHooligan 11-05-2008 10:34 AM

ZJ D35 rear discs will swap pretty easily, and for a lot cheeper than $500
if you have a D35:
http://www.stu-offroad.com/suspension/d35disc/d35-1.htm
Or a D44:
http://www.stu-offroad.com/suspension/d44brake/bc-1.htm


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