QU20018 Rear Hub 2-9/16" Rounded Hex Spindle Lock Nut

QU20018 2-9/16" Rounded Hex Spindle Lock Nut for Ford Dana Full floating Rear Axles is a new production, USA Made Torque King® replacement 2-9/16" Rounded Hex Spindle Nut with 2" thread and a rust-resistant Black Oxide finish. Use QU20018 for all 1969.5-1979 Ford F250 and 1956-1979 F350 trucks plus E250, E350 E-Series Vans with Dana 60 or Dana 70 rear axles with 2" rear axle spindle threads. Replaces out of production Ford part number B6Y4252A (B6Y-4252-A). Sold individually, order 2 Nuts per side. Now with Black Oxide finish! Made in Montana.

Also see TK20017 Spindle Lock Washer

Need More Info? Use the handy Links below to access over 40 years of Dan's product and vehicle specific Tech Notes to easily get the information you need for your vehicle's repair, maintenance, or upgrade project!

Dan the Gear Man® Tech Notes:
For 2" Spindle
Lock Washer Caution
Wheel Bearing Adjustment
Lubrication
Matching Parts
Matching Parts 1969.5-1979 F250 Dana 60
Applications

Tech Note 1: For 2" Spindle
QU20018 fits 1956-1979 Ford Dana 60 and Dana 70 rear axles with 2" spindle threads. As far as I have seen, only F350 trucks had 2" spindle threads prior to 1968. The 2" spindle appeared on some E-Series vans in 1968 and all F250 trucks in mid 1969 effective with serial number F30001 (some sources show as F70001). However, by now many of the original axles have been swapped out, so it is not uncommon to find a vintage Ford with a newer or older axle than the original making it imperative that you verify your spindle size before ordering.

Tech Note 2: Lock Washer Caution
Never reuse a spindle lock washer! These parts are designed for a single use. If you reuse one of these, metal fatigue on the spindle notch tab or any previously bent over tabs can cause that tab to break off. A broken tab WILL NOT prevent the spindle nuts from coming off! If you think these washers are expensive, you will not like what it costs to fix your truck after the hub and wheel flies off going down the interstate!

Tech Note 3: Wheel Bearing Adjustment

1. Adjust the inner spindle nut with QT1009 or QT1009i Spindle Nut Socket to 50-80 lb-ft. while rotating the hub.
   
2. Back the nut off 1 turn
3. Re-torque to 50-80 lb-ft. while rotating the hub.
4.  Put a thin coat of grease on both sides of a NEW TK20017 Lock Washer. 
5. Install the washer on the spindle and push it up against the inner spindle washer
6. Tighten the Lock Nut to 90-110 lb-ft. (the 90-110 spec is from official Ford Shop Manuals, however that much torque puts a lot of stress on the narrow spindle tab on the inside diameter lock washer. If you shear off a tab, get a new Lock Washer and try torquing the outer nut to a lower value. Back in the days when I worked on a lot of 1970's vintage Fords with the really soft and easy-to-shear factory lockwashers, I usually torqued the outer spindle nut to 50-60 lb-ft. while rotating the hub.
7. Check the hub spins freely, then check the wheel bearing/hub end-play. The end play measured with a dial indicator indicating off the hub should be 0.001" to 0.010".
8. When the correct end-play is achieved. Bend 2 tabs inward over the inner nut and 2 tabs outward over the outer nut.

Tech Note 4: Lubrication
The wheel bearings need to be packed with clean NLGI #2 wheel bearing grease to provide initial lubrication until oil from the differential can flow into the wheel hubs. We recommend Motorcraft Premium Long-Life Grease which meets Ford lubricant specification ESA-M1C75-B.

Tech Note 5: Matching Parts
Matching Parts for QU20018 Spindle Nut:
TK20017 Spindle Lock Nut Lock Washer
QU40078 Steel Axle Shaft Flange Gasket
QU50411 Timken® Outer Wheel Bearing Cup
QU50412 Timken® Outer Wheel Bearing
QT1009i Rounded Hex Spindle Nut Socket

Tech Note 6: Matching Parts 1969.5-1979 F250 Dana 60
Matching Parts for QU20018 in 1969.5-1979 Ford F250 Dana 60 Rear Axle Applications:
QU50412 Wheel Bearing
QU90001 Rear Wheel Seal
QU40078 Steel Axle Shaft Flange Gasket
QU20017 Spindle Nut Lock Washer for 1969.5-1979 Ford
QU50411 Wheel Bearing Cup
QU90018 Pyroplex Synthetic Grease
QU40367 Dana 60/70 Differential Cover Gasket
QU42029 Dana 60 Reuseable Differential Cover Gasket
QT1502 Wheel Seal Installer
QT1009i Spindle Nut Socket for 1979.5-2002
QT5500 Wheel Bearing Packer

Applications

Ford:
F-250, F-350 with Dana 60 or Dana 70 Rear Axles and 2" Spindle Threads: 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979