I didn't list the front hub features in the previous post, because some brake packages (like the C5/C6, Speedtech ATS, DSE, Roadster Shop, AME & others utilizing the C5/C6 mounting) don't need hubs. For cars with regular spindles that need hubs … read on …
The list of Features & Benefits from the Hubs is pretty impressive too:- 6061 Billet Aluminum Hubs - CNC machined in USA to ultra precise tolerances
- Much wider flange = Less wheel deflection under cornering loads
- Bigger radius behind the flange = Less wheel deflection under cornering loads
- ARP 3" long x 1/2"-NF (8740 Chromoly) Wheel Studs standard
- Timken Bearings & Races - No Chinese junk
- "Slip Fit" seal design, allows you to remove & replace the seals without tearing them up
- Seals are held in by 3 flange retaining screws (Just like pro race hubs)
- No Stamped Steel Dust Caps to hammer on or pry off!
- Billet Aluminum Dust Caps utilize three screws for easy removal & replacement
- Hubs & dust caps are hard anodized gloss black to look great for a long time
- RSRT designed tab spindle nut washer (Stainless Steel)
- Allows you to set near perfect bearing preload more accurately than the cotter key & castle nut method
We still need to discuss hub bearings. But first we should bring everyone up to speed on the wheel bearing issue.
I almost didn't design hubs & brake kits for several series of Muscle Cars from the 60's & early 70's ... as they came from the factory with tiny outer wheel/hub bearings rated under 1000# for thrust load. Most of you that know me, remember the online discussions we had about these weak, dangerous outer hub bearings a few years ago. I didn’t want to design brakes & hubs for spindle with bearings I knew would fail. Better brakes just adds to the loading.
Most GM, Ford & Mopar muscle cars from the 60’s & 70’s came with outer hub bearings rated at only 917# or 922# of thrust load. Fine ... back in the day ... when these cars came with G70-14 bias ply tires & the cars struggled to pull .8G. Today, with modern tires, suspensions & brakes, we're pulling 1.4G on autocross courses & 1.6-2.0G on road courses. Yes ... in Pro-Touring cars with 315/335 TW200 tires. The thrust loads on the hub bearings are up in the 1200#-1500# range.
Here is a list of cars/spindles/hubs & their outer bearings with thrust load ratings for you to ponder:
Ford/Mercury: - Fairlane 1966-1969 V8 Drum & All Disc Spindles use LM11949 Bearing rated at 917#
- Falcon/Comet 1963-1969 V8 Drum & All Disc Spindles use LM11949 Bearing rated at 917#
- Granada 1975-1982 uses LM12749 Bearing rated at 921#
- Mustang/Cougar 1964-1969 V8 Drum & All Disc Spindles use LM11949 Bearing rated at 917#
- Mustang BOSS 1969 spindles use M12649 Bearing rated at 1130#
- Mustang GT350 & GT500 1970 Spindles use LM11949 Bearing rated at 917#
- Mustang II 1974-1978 uses LM12749 Bearing rated at 921#
- Pinto 1971-1980 uses LM12749 Bearing rated at 921#
- Ranchero 1965-1969 V8 Drum & All Disc Spindles use LM11949 Bearing rated at 917#
- Torino/Cyclone/Montego 1967-1696 Spindles use LM11949 Bearing rated at 917#
GM- A-Body (Chevelle/GTO/442/Skylark) 1964-1972 use LM11949 Bearing rated at 917#
- A-Body (Monte Carlo/Gran Prix) 1970-1972 use LM11949 Bearing rated at 917#
- A-Body (Monte Carlo/Gran Prix/Cutlass/Etc) 1973-1977 use LM11949 Bearing rated at 917#
- B-Body (Impala & GM Sisters) 1971-1976 use M12649 Bearing rated at 1130#
- B-Body (Impala & GM Sisters) 1977-1989 use M12649 Bearing rated at 1130#
- Chevy II & Nova 1962-1967 use LM11949 Bearing rated at 917#
C5 Corvette 1997-2004 uses a Sealed Hub & Bearing rated at 1080#
C6 Corvette 2005-2013 uses a Sealed Hub & Bearing at 1080#
C6 Corvette 2008-2013 ZR1-Z06-GS uses a Sealed Hub & Bearing rated at 1515#
C7 Corvette 2014-Present ALL uses a Sealed Hub & Bearing at 1515#
C10 Pickup (Chevy & GMC) 1962-1970 use LM11949 Bearing rated at 917#
C10 Pickup (Chevy & GMC) 1971-1976 use M12649 Bearing rated at 1130#
C10 Pickup (Chevy & GMC) 1977-1976 use M12649 Bearing rated at 1130#
C10 Pickup (Chevy & GMC) 1981-1986 use M12649 Bearing rated at 1130#
F-Body (Camaro & Firebird) 1967-1969 use LM11949 Bearing rated at 917#
F-Body (Camaro & Firebird) 1970-1978 use LM11949 Bearing rated at 917#
F-Body (Camaro & Firebird) 1979-1981 use M12649 Bearing rated at 1130#
F-Body (Camaro & Firebird) 1982-1992 use LM12748/9 Bearing rated at 921#
F-Body (Z28, IROC-Z & Trans Am) 1988-1992 M12649 Bearing rated at 1130#
G-Body (Monte Carlo/Regal/Cutlass/Gran Prix) ‘79-‘81 use M12649 Bearing rated at 1130#
G-Body (Monte Carlo/Regal/Cutlass/Gran Prix) ‘82-‘88 use LM12748/9 Bearing rated at 921#
X-Body (Nova & GM Sisters) 1968-1974 use LM11949 Bearing rated at 917#
X-Body (Nova & GM Sisters) 1975-1978 use LM11949 Bearing rated at 917#
X-Body (Nova & GM Sisters) 1979 Only uses M12649 Bearing rated at 1130#
Mopar: - A-Body spindles & hubs use LM11949 Bearing rated at 917#
Valiant/Lancer/ Barracuda/Duster/Scamp/Dart/Demon
- B-Body spindles & hubs use LM11949 Bearing rated at 917#
Savoy/Belvedere/Satellite/GTX/Road Runner/Fury/Polara/Charger/Coronet/Super Bee
- E-Body spindles & hubs use LM11949 Bearing rated at 917#
70-70 Cuda & Challenger
Aftermarket Spindles: - Allstar/Jegs/Summit/Etc G-Body & S10 Clone Spindles use M12649 or M12748
- Art Morrison C6 Spindle uses Sealed Hub & Bearing rated unknown (Inquiry made)
- Belltech S10 Dropped Spindles use M12649 or M12748 (Depending on Hub you Use)
- Belltech C10 1981-1986 Dropped Spindles use M12649 Bearing rated at 1130#
- DSE Spindle (C6 Clone) uses Sealed Hub & Bearing rated unknown (Inquiry made)
- Magnum Force Mopar 2” Drop Spindles use LM11949 Bearing rated at 917#
- Mustang II/Pinto Clone and/or Dropped Spindles use LM12749 Bearing rated at 921#
- Ridetech Dropped Spindle uses LM11949 Bearing rated at 917#
- Ridetech Modular Spindle uses C7 Sealed Hub & Bearing rated at 1515#
- Roadster Shop Spindle uses Z06 Sealed Hub & Bearing rated at 1515#
- Ron Sutton Race Technology GT & GTR Spindles use #2687 Bearing rated at 1800#
- Speedtech ATS Tall Spindle uses C7 Sealed Hub & Bearing rated at 1515#
- Speedtech ATS ExtReme Spindle uses C7 Sealed Hub & Bearing rated at 1515#
- Wilwood Mustang II Pro Spindle uses LM12749 Bearing rated at 921#
- Wilwood C10 Pro Spindle uses Sealed Hub & Bearing rated unknown (Inquiry made)
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Now, all the listings above in red, I was NOT going to create hubs & brake kits for … unless I could increase the outer hub bearing size & thrust load rating. We did. I worked with Timken bearing engineers & came up with solutions for almost all of them.
Here are the bearings I used, in each hub design for the applications we offer, or will offer our Triple Duty StopTech Brakes Optimized by RSRT.
A. All of the cars & spindles that come with LM12649 outer bearings … simply come with the best LM12649 bearing available … Timken. These are true 1130# thrust load rated, where a lot of off brands & imports do not meet that load rating, or simply don’t have their bearings tested.
B. All of the cars & spindles that come with LM12748/9 outer bearings thrust load rated at 921# … I designed new hubs that allow us to utilize the Timken LM12649 bearing, thrust load rated at 1130#. This increases their thrust load capacity by over 20%.
C. All of the cars & spindles that come with LM11949 Bearing rated at 917# … I designed new hubs that allow us to use the Timken #21075 bearing, thrust load rated at … ready … 2540#. That is not a typo. It is a commonly available Timken automotive bearing. It is bigger, beefier, handles more heat & has bigger rollers with more surface area. When it’s time, you can buy replacement bearings around $20 each. This increases the bearing’s thrust load capacity by over 275%.
D. All cars that utilize the C5/C6/C7 mounting, we simply suggest you utilize the stronger, higher rated C6 ZR1 or C7 hub & bearing versions.
Now a really cool part … my StopTech brake packages with these superior hubs, dust caps, reusable seal mounting, ARP ½” x 3” long studs & strong(er) Timken bearings ONLY add $200 to the cost of a front brake kit!
We do NOT sell these hubs separately (unless you need a replacement). If I did, they would cost $800-900 a pair. So when you’re shopping brakes, compare the big picture & I think you’ll find:
- My StopTech brakes do cost more initially
- They are a superior brake system on many levels
- You won’t have to change brake pads going from street to autocross or track days
- Your pads & rotors will last longer
- Over time, this brake system will actually cost you less
See them HERE ... Call me at 844-722-3832 Ext 3 ... or Email me HERE
- Ron Sutton
Ron Sutton Race Technology
11374 Amalgam Way
Gold River, CA 95630
Website: RonSuttonRaceTechnology.com