TK20017 2" ID Spindle Nut Lock Washer - Ford Dana 60, D70 Rear Axles

TK20017 2" ID Spindle Nut Lock Washer with Bend Over Tabs for Ford Dana Full Floating Rear Axles fits all 1956-1979 F250/F350 and E250/E350 E-Series Vans with Dana 60 or Dana 70 full float rear axles using double rear 2-9/16" rounded hex spindle nuts and LM104949 Outer Bearing. TK20017 has the narrow spindle tab required to fit the narrow spindle slot on 1956-1979 Ford trucks (See QU15004 for washer with wide slot for non-Ford applications). Sold individually. Order two TK20017 lock washers to service both the left and right rear hubs on your vintage Ford. Black Oxide finish. Made in Montana, U.S.A. from domestic steel.

Also see QU20018 Spindle Lock Nut.

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:
Do Not Over-Tighten!
Never Reuse Lockwasher!
Verify Spindle Size
Wheel Bearing Adjustment for Ford 
Matching Parts in 1969.5-79 F-250 Dana 60 Rear
Applications

Tech Note 1: Do Not Over-Tighten!
When torquing the outer spindle nut, you must be very careful not to over tighten it as excessive torque has a tendency to shear the spindle notch lock tab.

Tech Note 2: Never Reuse Lockwasher!
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: Verify Spindle Size
TK20017 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 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 4: Wheel Bearing Adjustment for Ford

1. Adjust the inner spindle nut 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 5: Matching Parts in 1969.5-1979 F-250 Dana 60 Rear Axle
QU50412 Wheel Bearing
QU90001 Rear Wheel Seal
QU40078 Steel Axle Shaft Flange Gasket
QU50411 Wheel Bearing Cup
QU20018 Spindle Nut for 1969.5-1979 Ford (uses 2)
QU90018 Pyroplex Synthethic Grease
QU40367 Dana 60/70 Differential Cover Gasket
QU42029 Dana 60 Reuseable Differential Cover Gasket
QT1502 Wheel Seal Installer
QT1009i Spindle Nut Socket 
QT5500 Wheel Bearing Packer
Ford Shop Manuals

Applications:
Ford:
F-350 Truck 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
E-250, E-350 Van with Dana 60 or Dana 70 Rear Axles and 2" Spindle Threads: 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979
F-250 starting with 1969 serial number F30001: 1969.5, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979