yo 90,
Is it the Dana 44 gear oil leaking out from a bad Differential Seal? Because hubs need only a LIGHT greasing.
Remove the front wheel spindle (3105) and left shaft assembly as described in this section.
Pull out the seal with Puller T58L-101-B. Remove and discard seal.
Installation
Lightly coat a new seal with High Temperature 4x4 Front Axle and Wheel Bearing Grease E8TZ-19590-A or equivalent meeting Ford specification ESA-M1C198-A.
Install seal on the
Differential Axle Seal Replacer T80T-4000-H.
Slide the seal and tool into the carrier housing bore. Seat the seal with a nylon or rawhide hammer.
Install the front wheel spindle and left shaft assembly. Refer to Spindle, RH and LH Shaft and Joint Assembly in the Removal and Installation portion of this section.
Spindle, RH and LH Shaft and Joint Assembly
SPECIAL SERVICE TOOL(S) REQUIRED Description Tool Number
Impact Slide Hammer T50T-100-A
Bearing Cup Puller T77F-1102-A
Spindle Bearing Replacer T80T-4000-R
Spindle Bearing Replacer T80T-4000-S
Driver Handle T80T-4000-W
Spindle Seal Replacer T92T-4000-A
Spindle Seal Replacer T95T-3132-E
Spindle Seal Replacer T95T-3132-C
Driver Handle T83T-3132-A1
Shaft Seal Replacer T95T-3132-A
Shaft Seal Replacer T95T-3132-B
Keystone Clamp Pliers T63P-9171-A
Removal
Raise the vehicle and install safety stands.
Remove the wheels (1007) and tires. Refer to Section 04-04.
On vehicles equipped with four-wheel anti-lock brakes, remove the front brake anti-lock sensor (2C204) from the steering knuckle. Refer to Section 06-09B.
CAUTION: After removal, the disc brake caliper (2B120) must be wired to the frame or otherwise supported to prevent suspending the disc brake caliper by the flexible hose. If securing the disc brake caliper is not practical, disconnect the brake hose from the disc brake caliper. Plug the hose end to prevent fluid loss and entry of air into the system. Upon installation of the disc brake caliper, bleed the brake system as described in Section 06-00.
Remove the disc brake caliper. Refer to Section 06-03. Securely wire the disc brake caliper to the frame.
Spindle and LH Shaft and Joint Installation, Typical
Item Part Number Description
1 3B403 Axle Arm (LH)
2 3219 Shaft
3 3C132 Axle Shaft Rolling Diaphragm Seal (RDS)
4 3249 Front Axle Shaft Universal Joint
5 87747-S2 Filler Plug
6 3A049 Nut
7 72035-S Pin
8 3049 Front Suspension Upper Ball Joint
9 3A050 Nut
10 3K050 Snap Ring
11 3050 Front Suspension Lower Ball Joint
12 3130 Steering Knuckle Assembly
13 2K004 Front Disc Brake Rotor Shield
14 3299 Integral Spacer/Seal
15 3123 Caged Needle Bearing
16 3105 Front Wheel Spindle
17 35704 Nut
18 3254 Spindle Rolling Diaphragm Seal (RDS)
(F-150 and Bronco Only)
19 1190 Wheel Hub Grease Seal
20 4221 Differential Bearing
21 4222 Differential Bearing Cup
22 1102 Front Disc Brake Hub and Rotor
23 � (Part of 1102) Hub
A � Tighten to 136 Nm
(100 Lb-Ft)
B � Tighten to 123-149 Nm
(91-110 Lb-Ft)
C � Tighten to 47 Nm (35 Lb-Ft) for Model 44 or 68-81 Nm (50-60 Lb-Ft) for Model 50.
--
5 ***** Diagram in Parts Break-Out Diagrams for 80-96 & BoM for Dana 44 IFS
Source: by Dana via rsgear @
http://www.rsgear.com/catalogs/Diff/Dana_Ford_44.pdf
Operational Test; This is by Ford and
I do not recommend doing this with just jacks or jack stands at home.
Automatic Locking Hubs: Raise vehicle on a hoist so that all wheels are off the ground. Start engine (6007) with vehicle in neutral and transfer case in two-wheel drive. Front wheels should spin freely by hand. Put transfer case in 4WD and put vehicle in gear. Front and rear wheels should rotate together. Put vehicle in neutral and spin front wheels by hand in the forward direction. The front axle and front driveshaft should rotate with the wheels. The additional load of the drivetrain components should be felt once the hub has been engaged. To disengage the hubs, spin the wheels in the opposite direction until an audible click is heard. Spin wheels forward again and they should rotate freely without the axle and driveshaft rotating. Repeat the procedure, only shift into 4-wheel drive and put the vehicle in reverse. This time the hubs should release when the front wheels are spun in the forward direction. NOTE: While the vehicle is hoisted, shift into 4-wheel drive from a dead stop and not while rear wheels are rotating in order to avoid slamming the hub locks into the lock position. Road Test; When checking front hubs for proper operation, road test the vehicle to make sure the hubs will remain engaged while under load. This is accomplished by engaging 4-wheel drive and taking the vehicle through several turns (both forward and backward) on dry pavement. This will put an additional load on the front wheel at the outside of the turn because it is traveling the greatest distance. Driving through several turns while traveling in different directions will make sure that both sides of the hub teeth have been tested under load. Hubs that are not sufficiently engaged will pop out when loaded. This is due to the driveline releasing windup and is an indication of hub malfunction. If slippage is suspected, mark the tire and axle shaft with chalk (after locking the hub) and apply a heavy torque load several times. Then inspect your original indexing marks. If they are no longer aligned, the hubs are not remaining locked when under load. They will have to be replaced. Should hublocks become submerged in water or mud for a long period of time, water may get past the seals and into the hubs and axle. In this case, all water must be expelled from the system. The axle must be drained by loosening the axle cover and 4x4 Gear Oil used to refill the axle.
Disassemble the hubs using procedures in this section and repack the wheel bearings using procedures in this section and dry off the hublocks. Reassemble hubs using procedures in this section. Refer to Section 05-03A or Section 05-03B for replacement of outer axle shaft seals or spindle inner seal and bearing.
Swaps to Manual in my site @
http://www.broncolinks.com/index.php?index=107
including, for example;
5 ***** to Warn® & Bearing Replacement w/ Bearing Locknut Torque Settings in a 90; and, Wheel Bearing Locknut Torque Settings for 80-96 MANUAL HUBS, NOT Factory Auto Hubs; Ford Pickups and Bronco; "...Using a lockout spanner (ford # T59T-1197-B or equivalent ) and a torque wrench, tighten the inner bearing adjusting nut to 50 foot pounds while rotating the wheel back and forth and seating the bearing. Back off the adjusting nut approximately 45 degrees. Assemble the lock washer by turning the inner lockout to align the pin with the nearest hole in the lock washer. To lock it, install the outer lock nut and tighten it to 150 foot pounds. Grab the top of the tire with one hand and the bottom of the tire with the other. Move the tire in and out on the spindle. End play should be less than .006 – inch.).." Thanks to 90beater (Topher, Chris)!!!!
Source: by 90beater (Topher, Chris) at
http://bronco.tophersworld.com/writeup_hubs.htm
GL!
Removal in an 89 (part of his ball joint replacement)
Source: by Brahma502 at
http://www.supermotors.net/registry/media/797267
