Moparts Tech Archive

Brake System

Aftermarket Brakes

DARTMAN928
Moparts Member
Posts: 988
From: IN
Registered: Jun 2001
posted 11-12-2002 02:16 PM

OK, so after I have ordered the ft "bolt on kit" for disc, I'am in the middle of trying to order the rear disc kit. The guy calls me says that there are two different kits for the 8 3/4 axle. He said the measuring difference is in the hundreths or thousands. Can anyone help explain this to me? I thought that all 8 3/4 axles would use the same part number for a disc kit.
Thanks

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Blue
New Member
Posts: 48
From: Hertford, England, UK
Registered: Oct 2002
posted 11-12-2002 02:57 PM

I have a Wilwood kit on my 8 3/4, I think you'll find the difference is due to the style of bearing you are useing, the only part that seems to be different is the caliper mounting bracket which also keeps the wheel bearing in place. some bearings have a snap ring to locate them ( sometimes referred to as "Moser" type) whilst others (including The standard taper style) don't, you need to check what you have.

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NOSCharger
New Member
Posts: 11
From: Greenfield,IN
Registered: Nov 2002
posted 11-12-2002 04:05 PM

I also have a Wilwood kit on mine. The difference is the bearings. Are the axles stock or aftermarket? I believe the term a lot of people use is "Green" bearing.

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DARTMAN928
Moparts Member
Posts: 988
From: IN
Registered: Jun 2001
posted 11-12-2002 04:52 PM

I have Moser axles with green bearings. What do you think?

Thanks

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Blue
New Member
Posts: 48
From: Hertford, England, UK
Registered: Oct 2002
posted 11-12-2002 05:49 PM

I have the Moser axles with green bearings too, I used kit no 140-5255.
IP: Logged

DARTMAN928
Moparts Member
Posts: 988
From: IN
Registered: Jun 2001
posted 11-13-2002 09:35 AM

Is there only one kit for green bearings with moser axles? This guy acts like there are two different part numbers even for green bearings?

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1/4 mi Keith
Moparts Member
Posts: 440
From: Newberg (South of Portland), OR
Registered: Feb 2000
posted 11-15-2002 02:13 AM

I think Blue has the information, but pictures always help. This site has some helpful information:
http://www.magnumforce.com/wilwood_rear_brakes.asp#Mopar%208%203/4%20and%20Dana%2060
Scroll about half way down the page until you see 4 pictures on the right. This is one of them:

It shows the green bearings with a snap ring retainer. If you have those, you should use the kit referenced as "MO400 Green Bearing" in this chart:
http://www.wilwood.com/products/kits/radk/order_info.asp
Which happens to be the 140-5255 as Blue mentioned.

=========================================== Heres some pics from the board of some aftermarket systems members have on their cars. Some of the systems are from member 451boy.
Some have Magnum Force upper control arms also.

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