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USD 246.39
Part #: MM449S/S

Mile Marker 449S/S Stainless Steel Locking Hubs

Vehicle Fitment:
1990-2004 Ford F-350/450/550 & Excursion (With Dana 50 & 60 Axle) | 1990-1993 Dodge 1 Ton Pickup (With Dana 50 & 60 Axle) | 1977-1987 GM C/K 1 Ton Pickup (With Dana 50 & 60 Axle) | See full application list below
Part #: MM449S/S
★★★★★ ★★★★★ 4 Reviews
$279.99 $246.39
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Description

The Mile Marker 449S/S Stainless Steel Locking Hubs replace your original equipment manual or automatic hubs. Available for many applications these heavy-duty hubs are designed to exceed industry standards and provide the best performance for even the most extreme off-roaders. Sold as a pair.

Specifications:
  • 30 Spline Axles 
  • 1.312 Axle OD 
GM Applications: 
1977-1987 Chevy IT (K-30) Pickup
1977-1987 Chevy IT Dana 50 & 60 Axle

Chrysler/Plymouth/Dodge
1990-1993 1 Ton Dana 50 & 60 Axle

Ford Applications:
1959-1996 1 Ton Pickup
1976-2004 1 Ton Dana 50 & 60 Axle (Requires Mile Marker 95-32721 Nut Conversion)

1999-2004 F-250
1959-1998 F-250  ex. F/T (Requires Mile Marker 95-32721 Nut Conversion)

1999-2004 F-350
1988-1998 F-350 (Requires Mile Marker 95-32721 Nut Conversion)
1976-2004 F-350 Dana 50 & 60 Axle (Requires Mile Marker 95-32721 Nut Conversion)

1999-2004 F-450
1988-1998 F-450 (Requires Mile Marker 95-32721 Nut Conversion) 
1976-2004 F-450 Dana 50 & 60 Axle (Requires Mile Marker 95-32721 Nut Conversion)

1999-2004 F-550
1999-2004 Excursion

Application Notes:
If your application has OEM automatic hubs, a conversion kit is required to convert manual hubs. Item # 95-32721 (See Related Items)

Vehicle Fitment

YEAR MAKE FOR ENGINE SERIES
1994 Ford 7.3L Powerstroke
1995 Ford 7.3L Powerstroke
1996 Ford 7.3L Powerstroke
1997 Ford 7.3L Powerstroke
1999 Ford 7.3L Powerstroke
2000 Ford 7.3L Powerstroke
2001 Ford 7.3L Powerstroke
2002 Ford 7.3L Powerstroke
2003 Ford 7.3L Powerstroke
2003 Ford 6.0L Powerstroke
2004 Ford 6.0L Powerstroke
1994 Ford Gas
1995 Ford Gas
1996 Ford Gas
1997 Ford Gas
1998 Ford Gas
1999 Ford Gas
2000 Ford Gas
2001 Ford Gas
2002 Ford Gas
2003 Ford Gas
2004 Ford Gas
1989 Dodge 5.9L 12V Cummins
1990 Dodge 5.9L 12V Cummins
1991 Dodge 5.9L 12V Cummins
1992 Dodge 5.9L 12V Cummins
1993 Dodge 5.9L 12V Cummins
1989 Dodge Gas
1990 Dodge Gas
1991 Dodge Gas
1992 Dodge Gas
1993 Dodge Gas
1982 Chevy 6.2L Non-Duramax
1983 Chevy 6.2L Non-Duramax
1984 Chevy 6.2L Non-Duramax
1985 Chevy 6.2L Non-Duramax
1986 Chevy 6.2L Non-Duramax
1987 Chevy 6.2L Non-Duramax
1982 Chevy Gas
1983 Chevy Gas
1984 Chevy Gas
1985 Chevy Gas
1986 Chevy Gas
1987 Chevy Gas
1982 GMC 6.2L Non-Duramax
1983 GMC 6.2L Non-Duramax
1984 GMC 6.2L Non-Duramax
1985 GMC 6.2L Non-Duramax
1986 GMC 6.2L Non-Duramax
1987 GMC 6.2L Non-Duramax
1982 GMC Gas
1983 GMC Gas
1984 GMC Gas
1985 GMC Gas
1986 GMC Gas
1987 GMC Gas

Specifications

  • MPN 449SS
  • SKU MM449S/S
  • GTIN 758626004499
  • ID 8962
  • Manufacturer Name Mile Marker
  • Shipping Weight 9.00 lb.
  • Shipping Length 10 in.
  • Shipping Width 6 in.
  • Shipping Height 4 in.
  • Fuel Type Diesel / Gas
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
  • Cross Reference # 449SS
  • Internal L0R4

Reviews

★★★★★ ★★★★★
3.2/5 Stars out of 4 Reviews
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if you buy a set make sure you keep a set of upper lock springs in the vehicle
2
I have a set of these that I bought to replace the 1999-04 SD auto lock hubs on a 2000 f250 SD diesel. I did not buy them form XDP, I wish I had as customer service is excellent and they have helped me with anything I have bought from here. The original ford hubs were esof vacuum hubs and the outer seal failed to where you could not turn the selector and they would not hold vacuum. The MM449ss hubs were bought as a replacement. I have not had excellent service from these hubs. I have had broken upper ramp spring on far too many occasions. You have to properly clock the lock dogs to the ramp springs as these do not have alignment pins. The instructions do not detail this procedure. You will have to watch the video on the mile marker website. I try to keep a set of spare springs in the glove box, with a hex wrench of the proper size and a small snap ring pliers or seal pick to be able to change the upper ramp spring out when it breaks as there is a snap ring that holds it on. We recently had a nice winter storm (southern Wyoming/northern Colorado) with 16 inches of snow, high wind, and resulting drifts and ice. I broke a spring while locked in 4wd with a trailer on the truck, all three ears broke off the spring. I put my last spare spring in with a stuck truck in a drift in the dark, I properly clocked the parts and took the truck to the house. Two days later pulling out of the snowy and icy mill lot with a load of firewood on the trailer and truck, the same side broke an ear off and the hub unlocked. We pulled the truck with a tractor to the road, I took the hub off and pulled the spring and unlocked the opposite hub to get back to the house 60 miles away. I called for replacement springs and mile marker tech and sales support told me they are out of springs until after the first of the year, that was on December 6th, 2019. No parts available anywhere within 100 miles that I can find, online sellers also say none available. This truck now has a set of Warn 11690 hubs, parts are available everywhere to rebuild warn hubs. This set of mile marker 449ss will be relegated to the when all else fails spare pile when of if I can find new springs. My experience is these are light-duty hubs. If you are concerned with being stranded with no parts, I would buy a set of Warn hubs or find another set of Ford factory hubs either manual or esof. I would also make sure that if you bought these that the seller carries the spare parts as I have a hard time gettign spares.
Great locking hubs
5
I got these hubs to replace failed warn hubs on my super duty, they are very strong and reliable and don't stick like the warns do. They are clearly better built hubs then warn and there cheaper!! Takes 5 mins to install and comes with everthing you need to install them. Also got to say that XDP has the best costumer service around!
M/M Junk
1
These hub lockouts worked ok for about 6 months then they started sticking. Granted I bought them from O'Reilys but they're the same part. I replaced them with the Warn lockouts and I haven't looked back. Save yourself the headache, these are a waste of money.
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Questions and Answers

Will the mile marker hubs require a conversion kit?
View Staff Answer 
Answer
If you truck has OEM automatic hubs, a conversion kit is required to convert manual hubs. The Mile Marker 95-32721 Nut Conversion Kit is required when switching from OEM automatic hubs to manual locking hubs for the first time on the applications listed below.

Ford Applications:
F-250 hv dty '59-'87, '90-'04 ex. F/T
1 Ton Dana 50 & 60 Axle '90-'04
F-350, 450 Dana 50 & 60 Axle '76-'04
Sold as a pair of hubs?
View Staff Answer 
Answer

The Mile Marker 449SS Stainless Steel Lockout Hubs are sold as a pair.


The Mile Marker 449SS Stainless Steel Lockout Hubs will replaces original equipment manual or automatic hubs on the 1976-2004 F350-450 applications with Dana 50 & Dana 60 Axles.

(The Mile Marker 95-32721 Nut Conversion Kit is required if going from OEM automatic hubs to manual locking hubs for the first time.)

Are they 30 spline?
View Staff Answer 
Answer
Yes. They are 30 spline locking hubs.
What axle O.D.?
View Staff Answer 
Answer
1.312
They are correct for your application.

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