4X4 manual locking hub help
I have a 1985 F250 4X4 with a 351W, NP435 4 speed and dana 44 19 spline axle, Independent front suspension. I don't have the numbers off the front end tag handy but I can get them if it will help. Short version of my problem is I replaced the OEM hub locks with a set of Warn "standard" hub locks. The outer hub lock splines that engage the rotor/hub bottomed out before the inner splines for the axle would allow me to install the axle snap ring. Instead of sending them back I made them work because I HAD to have the truck back on the road, I know I should have sent them back, this happened about 6 months ago. These finally quit working so I ordered a set of "premium" hub locks and when they came in today we measured them and they will present the same problem as the other set of Warns I ordered and made work. The instructions that came with the new set said the same thing as the other set I ordered and made work, "for independent front suspension the axle snap ring MUST be installed". We called Warn technical support and they said leave the snap ring off
. So my question is will it hurt to leave the axle snap ring off? If I leave the snap ring off when I put a load on the front end, using the 4X4 will the axle slip/slide in and damage the ring gear, pinion, ect? Is there a brand of hub lock that will fit straight out of the box? I need to get this problem fixed but I am not sure which way to go here. I would greatly appreciate your input, help, advice, and thoughts. I do know the front axles are turning when I put it in 4X4 because i saw them turning the last time I had to winch out of a mud hole but the front end was not pulling. Thank you in advance for your help gentlemen.
LET US KNOW HOW IT GOES.
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Last edited by Hogtrapper; Feb 15, 2014 at 11:10 PM. Reason: spelling
Ford Trucks for Ford Truck Enthusiasts
http://static.summitracing.com/globa...c0-pn20990.pdf
I don't know it I can do it or not but I am going to try to copy the instructions and paste them here so you won't have to use the link.
INTERNAL MOUNT HUBLOCK
INSTRUCTIONS
chrome cover, a conversion kit will be needed. (Use Warn P/N 32720)
2. Use the illustrations below to help with the removal of the old hublocks. When removing the lock ring, use
MILD FORCE with a thin screwdriver or pick/hook.
3. Remove ALL retaining rings on the splined axle shaft.
occur if the spindle nuts or wheel bearings are loose! Damage to hublocks due to loose spindle nuts or wheel
bearings will void warranty!
NOTE: WHEN REMOVING ANY 3 HOLE CHROME CAP AUTOMATIC HUB, PURCHASE AND INSTALL
CONVERSION KIT P/N 32720
6. Install body assembly and large lock ring into wheel hub housing. (Remove any retaining rings on the splined
axle shaft if present)
7. Check the clearance between the hublock body and the spindle nuts. The clearance may be checked by the
following method. Remove 2 of the socket head screws from the box and insert them 180 degrees apart into
the body of the hublock. Hold onto the screws and attempt to move the body assembly in and out of the
wheel hub. If some float is evident, the installation is correct. Remove the 2 socket head screws. IF THERE
IS NO FLOAT EVIDENT, DO NOT PROCEED WITH THE INSTALLATION UNTIL THE CONDITION IS
CORRECTED. To correct this condition, perform the following steps.
A. Remove the lockring, body assembly, and wheel bearing lock nut
B. Install the washer so that it is seated against the bearing adjustment nut, and tighten the
wheel bearing lock nut to the manufacture’s recommended torque. The pin in the bearing
adjustment nut MUST be seated into a hole in the washer when installed. If the
washer is not aligned correctly the wheel bearing lock nut will be approximately 1/8 inch too
far outboard and will interfere with the hublock.
C. Reinstall the hublock body assembly and check for clearance. If correct, proceed with the
installation. If not, repeat step B.
8. Install the Axle retaining ring. If necessary, a pry bar can be inserted into the knuckle (universal joint) to hold
the axle shaft outboard while installing the axle retaining ring.
and some 85 Chevy/GMC’s). Use them if they can be installed correctly (outboard of the hub body)
but their use is not mandatory and no durability loss will be suffered.
TRACTION BEAM FRONT AXLES (INDEPENDENT FRONT SUSPENSIONS) MUST HAVE AN AXLE
RETAINING RING INSTALLED.
the socket head screws to align the cap to the body. (The standard
hublock will also have to align the 3 tabs on the cap assembly) Insert
the six socket head cap screws and torque to the following values.
Standard Hublock P/N 9790, 45-55 in-lbs (
Hublock P/N 20990, 25-30 in-lbs (NOT Ft-Lbs)
10. To CHECK FOR PROPER ENGAGEMENT dial both hublocks to LOCK,
raise the front left corner of the vehicle off the ground. Spin the lifted
tire. The driveline will turn if the hublocks are engaged properly
11. To CHECK FOR PROPER DISENGAGEMENT dial the lifted wheel
hublock into FREE and spin the lifted tire. If the driveline does not turn
AND there are not any ratcheting sounds, the hublock is disengaging
properly. Repeat the process for the right side
internal working surfaces.
against factory defects in material and workmanship for as long as said purchaser owns the vehicle that the products was originally installed on.
Warn warrants electrical components of the products, where present, to the first purchaser against defects in material and workmanship appearing
under normal use and service for a period of one (1) year from the date of purchase. To obtain any warranty coverage, it is absolutely necessary
that you present proof of purchase and warranty period verification acceptable to Warn, such as a copy of the purchase receipt. Returning a fully
completed registration card to Warn within ninety (90) days of the date of purchase is a condition precedent to warranty coverage. If you discover a
covered defect, Warn will, at its option, repair, replace or refund the purchase price of this products or products parts at no charge to you, provided
you return it during the applicable warranty period, transportation charges prepaid, to Warn Industries’ Service Department or Factory Authorizes
Servicing Distributor. (You can obtain additional information from Warn directly at the address printed below.) Please attach your name, address,
telephone number, a description of the problem and a copy of the bill of sale bearing the appropriate Warn serial numbers as proof of original retail
purchase, to each product returned for warranty service. Exclusions from this warranty are those listed below as well as any conditions determined
by Warn Industries to have been caused by abnormal use or service.
This warranty applies only to products purchased after November 1,1987. Warn does not warrant any products that are not Warn products. This
warranty does not apply if accident, abuse, misuse, collision, overloading, exhaust, misapplication, improper installation, improper use, improper service
or modification has damaged the product without written permission from Warn. This warranty does not apply if any Warn serial number has been
removed or defaced. In addition, commercial, or industrial use or application, or any hoisting application of the product without prior written approval
of Warn voids the entire warranty.
EXCEPT AS EXPRESSLY STATED HEREIN, THERE ARE NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE WHICH BY LAW MAY NOT BE EXCLUDED, IS LIMITED IN DURATION TO ONE (1) YEAR FROM
THE DATE OF ORIGINAL RETAIL PURCHASE OF THIS PRODUCT.
THE WARRANTY AND THE REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHERS, ORAL OR WRITTEN,
EXPRESSED OR IMPLIED.
No Warn dealer, agent or employee is authorized to make any modification, extension or addition to this warranty.
WARRANTY, OR UNDER ANY OTHER LEGAL THEORY, INCLUDING, BUT NOT LIMITED TO LOST PROFITS, DOWN TIME, GOODWILL,
DAMAGE TO OR REPLACEMENT OF EQUIPMENT AND PROPERTY, LOSS OF USE OF THE PRODUCT OR OF ANY ASSOCIATED EQUIPMENT,
OR COST OF SUBSTITUTED PRODUCTS.
Some states do not allow the exclusion or limitation of incidental or consequential damages or limitation on how long an implied warranty lasts, so the above
limitation or exclusion may not apply to you. This warranty give you specific legal rights, and you may also have other rights which vary from state to state. Warn
reserves the right to change product design without notice or obligation to modify previously manufactured products.
wheel drive.
*To engage four wheel drive set the hublock dials to “LOCK” and set the transfer case to 4-high or
4-low.
*Return the transfer case to 2-high before disengaging hublocks.
*Do not drive on hard surface roads in 4-wheel drive because it can cause drive train damage.
*Do not move the vehicle if the hubs are anywhere between “FREE” and “LOCK” or it will damage
the hublocks.
*Driving with only one hublock engaged can cause drive train damage.
*Driving with the hublocks in ”FREE’’ and transfer case in 4-low can cause drive train damage.
*To ensure lubrication of the front axle, engage hublocks for a minimum of one mile monthly.
Locking Hubs Finish








