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#91048400
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$224.99
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| MFG. Part # | Select Bolt Pattern 5 On |
| Wheel Bolt Pattern (in.) | Select Bolt Pattern 5 On |
| Spline Count | 24 |
| Material Type | Steel |
| Finish | Black Oxide |
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Return PolicyThe full floating rear axle has been around for decades. Primarily designed for heavy duty truck use, it was found to be a great solution for circle track racing and has been a race-spec axle housing used in all levels of circle track racing ever since. Today you’ll find high horsepower street cars that see extreme cornering g-forces (auto crossing, road racing, etc.) using full floater rear end setups as well. So why the change to a full floating axle from the more conventional semi-floating axle found under just about every rear drive production car made in the last century? It’s easy really when you compare the differences between full floating vs semi floating axle assemblies.
In a semi-floating axle, such as the popular GM 10 and 12 bolt rears, or Ford’s 7.5- and 8.8-inch rear ends, the axle assembly is retained by a C-clip at the differential end and rides on a single bearing seated in the end of the axle tube. The full weight of the vehicle rides on this single small bearing while the differential end of the axle shaft floats in the differential or spool, hence the “semi” floating term. This design puts a lot of stress on the axle bearings and seals, and it is not uncommon to bend axle flanges in hard cornering or chew up a bearing (which ruins the axle). Additionally, if the C-clip should fail from side loading, or the axle break from excessive torque, the broken axle with wheel and tire assembly can exit the axle housing causing extensive damage and loss of control of the vehicle. While a bolt-in axle like the popular Ford 9-inch is an improvement, axle flange stress can still lead to bending or breaking right at the bearing in hard cornering.
Meanwhile, the full floating axle uses a hub that rides on a pair of large bearings on the end of the axle tube itself (similar to your front disc brake rotor and spindle). This allows the full weight of the vehicle, as well as all acceleration, braking, and cornering forces to move through the axle housing itself. Due to the dual bearing hub on the end of the axle housing the axle itself “floats between the differential or spool and a splined drive plate that mounts between the hub and the wheel (engaged via the wheel studs), thus the “full floater rear end.” If an axle should break in a full floating rear axle there is zero chance of losing a wheel and tire assembly. Furthermore, due to the fixed hub location disc brake pad knock back (a common issue on semi-floating axles where hard cornering pushes the caliper pistons into the caliper) is eliminated. This provides constant and firm brake pedal application no matter the cornering forces. Hit our Toolbox article on full floater rear axles for more details.
Our full floating rear axle hubs are the perfect upgrade to your old, heavy hubs you currently use. Designed with an integral disc brake rotor flange that accepts standard 8x7 bolt pattern rotors, these Grand National style hubs include tapered roller bearings, a new tabbed lock washer to maintain bearing preload, and inner axle seal with spiral lock ring retainer to prevent seal movement. We also include a new 24 spline drive flange plate with anodized aluminum axle cover to allow quick and easy axle removal for differential gear swaps. New hub nuts are not included, so if yours have seen better days, or you’re building your full floater rear end piece by piece, be sure to pick up the hub nut required. We offer both left hand thread and right hand thread versions.
These hubs are available in either 5x5 or 5x4.75 bolt circle patterns. Both bolt circle patterns use 5/8-11 coarse thread wheel studs and include 1-inch double sided lug nuts. Due to the larger wheel stud and the 45-degree taper of the included circle track-style lug nuts most street-style wheels will not work with these hubs. If your wheels of choice use standard 1/2-20 wheel studs and 60-degree taper lug nuts, you can replace the wheel studs included in this kit with our special Grand National 1/2-20 wheel studs kit on the 5x4.75 bolt circle pattern hub only (5x5 hub is press fit studs and not compatible with these optional screw in studs). You can learn more about 45 vs 60 degree taper lug nut applications in our lug nut guide in The Toolbox.
Kit Includes:
Needed to Complete:
Specs
2 3/4 inch long studs
| KEY SPECS | |
|---|---|
| MFG. Part # | Select Bolt Pattern 5 On to see |
| Brand | Speedway Motors |
| Wheel Bolt Pattern (in.) | Select Bolt Pattern 5 On to see |
| Spline Count | 24 |
| Material Type | Steel |
| Finish | Black Oxide |
| GENERAL | |
| Stud Length | 2.75" |
| Wheel Stud Thread Size | 5/8/2011 |
| 8-Bolt Type | 8 x 7.00" |
| Hardware Included | Yes |
| Rotor Compatibility | 8 x 7.00" |
| Sold in Quantity | Kit |
| Bearings Included | Yes |
| Wheel Studs Included | Yes |
4.7
7 Reviews
Customers appreciate the product's functionality and sturdy construction. Many found it helpful in simplifying their projects and would consider buying again. Some noted that the product's weight is lesser than others in the market, making it practical to use. The inclusion of all necessary parts in the kit was also highlighted as advantageous. However, some users experienced difficulties in assembling and reported that specific components, like the drive flange, required additional adjustments. Despite this, the product's quality and value for money stand out, with a predominant preference over competitor offerings.
4.7
7 reviews
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Good quality
5.0
2 months ago
Pat
Savannah Ga
Verified
Part is casted and machined well. complete with all the parts needed to assemble.
Would Recommend
The parts worked as intended with no problems
5.0
3 years ago
Rp
Kinderhook NY
Verified
They did their job
Would Recommend
would buy again.
5.0
3 years ago
Bob
Dover, Oh.
Verified
Making my project easy. Working out great!
It took a lot of reworks to get this to work.
3.0
4 years ago
Jerry I
Waterford MI
Verified
Parts were all okay except for the drive flange which was .040" too thin. Had to rework the hub so the drive flange retaining screws would retain the drive flange. Had to machine a special bearing shim to get flange in correct position to retain axle shaft. I would not been able to use this kit if I didn't have a machine shop available.
Would Not Recommend
I would buy this product again
5.0
5 years ago
'55 F100
Fremont, NE
Verified
Well built product
Would Recommend
I would buy again.
5.0
6 years ago
brent
tulsa, ok
Verified
Everything fit up. Hubs weight was 8 lbs with brake mount made on , my old one was 11 with bolt on brake mount
Would Recommend
Nice kit and nice price
5.0
7 years ago
Eric
NE
Verified
These hubs seem very good. I like that all the parts I needed were included. I've ran these hubs on other cars in the past and have always had good luck with them.
Would Recommend
Showing 7 of 7 reviews
12 Questions • 10 Answers
What would the measurements be from the bearing seat (snout side) to hub centre? Trying to determine my housing width to bearing seat on snout to make a 62" track width on a zero offset wheel.
by Racerrob
• 2 years ago
1 answer
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How long are the studs?
by LMSS14
• 4 years ago
1 answer
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I had a buddy ask the proper way to install the rotor onto the hub? I thought he was joking, but then realized I never saw instructions on proper rotor installation.
by Kevin
• 8 years ago
1 answer
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Will this fit a pro tek ford 9" floater rearend
by Rowdy
• 8 years ago
1 answer
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I need all bearings and seals and locks and bearing spacers for this hub what r the part numbers. Thanks
by Sean
• 10 years ago
1 answer
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does it come with 31 spline drive plate
by gary
• 10 years ago
1 answer
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Will this fit on a winters quick change with steel modified tubes looking to switch mine to 4.75
by Jason
• 10 years ago
1 answer
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What's the part number for the 2.5 Id bearings for the ford nine inch
by Jo
• 10 years ago
1 answer
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Will this fit on the ford nine inch floater?
by Jojo
• 10 years ago
1 answer
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Do you carry in stock the 2 3/4" screw-in wheel studs that come in this hub?
by Ken
• 11 years ago
1 answer
View Answer
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