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On My Daughter's 1990 D-150 pickup, with the inoperative drivers side
wiper.

Got it in to the garage where I could get a good look at it and had
tools at hand.

Nylon/plastic bushings that hold arms to pivot points where shot. One
out of four did not have a chunk out of it.

Found needed repair parts in the Help parts section at Advance Auto.

Found the cowl grill is not hard to get off, two screws under the
windshield weather strip rubber that need to be loosened, eight
screws in the engine compartment that need removed.

Job took less than two hours including the five mile one way trip to
the parts store.

For any one that wants to know for future reference.
1. Remove wiper arms. Lift blade arm away from window, rotate keeper
up let arm down on keeper, wiggle assembly off rotator assembly, Set
aside.
2. Loosen screws under windshield weather-strip.
3. Remove screws in engine compartment.
4. Loosen cowl Grill pull out far enough to get windshield washer
hoses off of the nozzles. Remove cowl grill.
5. Remove nut holding arm to wiper motor. Try not to move motor
shaft.
6. Remove three bolts holding each wiper pivots to body
7. Note the way the arms are positioned in relation to the other
parts (this is so you get the new parts installed in the correct
direction.
8. Remove all the parts to the work bench. (Do not try to do the
following in the truck it is not worth the hassle.)
9. Remove old bushings if necessary.
10. Install new bushings by pressing into arm with vise or pair of
large channel locks. (I used a small bench vice 11/16 socket as
backer to keep from bending the arm as I pushed the nylon bushing in
to the arm and on to the pin).
11. Assemble arms onto pins.
12. Slip entire assembly back into vehicle.
13. Reinstall both wiper pivots (do not tighten bolts yet)
14. Install drive arm to wiper motor.
15. Tighten wiper pivot bolts.
16. Test operation. Correct any problems.
17. Reinstall cowl grill.
18. Reinstall wiper arms. With blade about 1 1/4 inch from bottom of
windshield.
19. Test wipers for full range of operation should not hit drivers
side A pillar when at top of stroke. (You may need to remove arms and
reinstall them in another notch on the pivot to get every thing
right).

Hope this info will help someone in the future.


Happy Campimg. ldpoos@NOPANTS.juno.com
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2003 Dodge 1500 QC SB Hemi, A/T, Tow Package, 3.92 gears (11 mpg Towing)
2001 Aerolite 21RDB 21ft TT (Scales 2900 dry)