F 250 2WD Pickup V8-7.3L DSL (1990)
1.
Remove rear wheel and tire assemblies.
2.
Remove brake drums (to eliminate brake drag).
3.
Disconnect the driveshaft assembly at the companion flange and remove it or tie it out of the way.
4.
Remove and discard the companion flange, pinion seal and pinion nut.
5.
Install new pinion seal.
6.
Install new companion flange, using Companion Flange Replacer T85T-4851-AH.
7.
Install new pinion nut. Tighten pinion nut, rotating the pinion occasionally to make sure the pinion bearings are seated properly.
8.
Continue to tighten the pinion nut, taking frequent pinion bearing preload readings by rotating the pinion with a N-m/lb.in. torque wrench through
several revolutions until the correct proload is obtained:
9.
Check the rear axle lubricant level. Refer to the appropriate model year Light Truck Service Manual, Section 15 for 1985-89 models and Section
05-02A for 1990-92 models, for service details.
10.
If the ring & pinion gearset is to be replaced, Refer to the appropriate model year Light Truck Service Manual, Section 15 for 1985-89 models and
Section 05-02A for 1990-92 models, for service details.
NOTE:
UNDER NO CIRCUMSTANCES SHOULD THE PINION NUT BE BACKED OFF TO REDUCE PRELOAD. IF REDUCED PRELOAD IS
REQUIRED, A NEW COLLAPSIBLE SPACER AND PINION NUT MUST BE INSTALLED.
NOTE:
REFER TO DEALER MASTER PARTS CATALOG FOR CORRECT RING AND PINION GEARSET USAGE IF GEARSET REPLACEMENT
IS REQUIRED.
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS:
Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage For 1992 Models, Basic And Powertrain Warranty Coverage For All Other
Models
OPERATION
DESCRIPTION
TIME
940821A
Inspect And Install New Companion
0.8 Hr.
Flange, Pinion Seal And Pinion Nut
940821B
Inspect And Install New Ring And
2.6 Hrs.
Pinion Set With New Pinion Bearing,
Pinion Seal And Nut
DEALER CODING
BASIC PART NO.
CONDITION CODE
4851
38
OASIS CODES: 509000, 510000
