[00 SS]

MJM Racing is proud to present the first rebuildable, adjustable and regreasable front hub for 4th gen F-bodies. As most of you know already, these have been a long time coming and have gone though several interations and lots of testing over the last two years. If you've ever autocrossed with 315 Hoosier's or Kumho's, you know why these were developed.

Pictures can be seen here:
http://www.mjmracing.shutterfly.com/

Highlights:

1. New forged and hardened 4340 steel spindle made by Mark Williams Enterprises to MJM Racing, LLC specifications
2. Timken tapered roller bearings
3. Factory ABS retained
4. Original exterior dimensions retained for a "bolt on" application with no other modifications required.
5. Adjustable for bearing play, regreasable and rebuildable.
6. Comes with new ARP studs

We will begin to take orders on 1-1-09.

We need to get at least 20 pairs in the initial order to get the best pricing on machine work and parts. Please post any questions as well as stating your interest so a list can be compiled.

The initial price will be $650 each plus a core. That price will apply to this first initial offering only and these are only offered to the people of this site at this time. The core charge will be $100 per hub if you do not have any old ones you can send. Frankly, cores are necessary and if that ends up being too low of a core charge to get people to send cores, it will go up. Please be considerate and at least knock the big chunks of rust, dirt and grease off before you send them. If you have already sent cores to help with development your names are recorded and you need not send any additional cores (unless you want to).

Our lawyer has prepared a document that must be signed by each interested party prior to any transaction. A copy will be emailed to all who state they are interested in purchase.

Please post all questions here or call me, my PM folder is already a bit full.

Mike Minear
Managing Member
MJM Racing, LLC
303-710-9297

This post has been edited by 00 SS: Dec 16 2008, 04:46 PM

[marka]

Howdy,

Mine:

Howdy,

I understand the SEB / SPAC is probably considering the legality of some
new-to-the-market replacement wheel bearings / hubs for a 4th gen ('93-'02)
f-body.

My question boils down to if a replacement hub assembly may be used that is
exactly identical in dimension, weight, and intended function to the
original hub assembly, although the internals are slightly different. In
this case, the replacement hub uses tapered roller bearings that are user
serviceable while the OE hub is not user serviceable (I don't know what kind
of bearings are in it).

I believe this is legal in FS (and thus ESP) via Stock's rule:

""Alternate components which are normally expendable and considered
replacement parts (e.g., engine and wheel bearings, seals, gaskets, filters,
belts, bolts, bulbs, batteries, brake rotors, clutch discs, pressure plates,
suspension bushings, drivetrain mounts, etc.) may be used provided they are
essentially identical to the standard parts (e.g. have the same type, size,
hardness, weight, material etc.), are used in the same location, and provide
no performance benefit."

Since the OE hub is a non-serviceable part and this new hub replaces it
exactly in every dimensional and weight way, I believe it would be legal to
run. Conversely, if its _not_ legal to run I believe that many "parts
store" hub assemblies that aren't exactly identical (down to the particular
type of steel used for the bearing race, etc.) would also be illegal and I
can't imagine that's the point of this rule.

Thanks for your attention to this!

Mark Andy
#266492

I suppose its fine to point out the safety issues, but you might want to be a little careful about how you do that. You could also fix those issues by removing the 4th gen fbody from ESP. :-) Historically, exceptions to address a particular car model's weaknesses get no weight.

In this particular case, I believe the rule just allows them as its written, no justification (or even clarification) necessary.

Mark