need help with 1990 dodge d150

My Daughters '90 D150 had a similar problem a while back here are the notes I posted to the newsgroup Oct 3 2004 (BTW they are still available on Google Groups.) under the subject UpDate: 1990 D-150 WS Wiper Question

For any one that wants to know for future reference.

Remove wiper arms. Lift blade arm away from window, rotate keeper up let arm down on keeper, wiggle assembly off rotator assembly, Set aside.
Loosen screws under windshield weather-strip.
Remove screws in engine compartment.
Loosen cowl Grill pull out far enough to get windshield washer hoses off of the nozzles. Remove cowl grill.
Remove nut holding arm to wiper motor. Try not to move motor shaft.
Remove three bolts holding each wiper pivots to body
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.
Remove all the parts to the work bench. (Do not try to do the following in the truck it is not worth the hassle.)
Remove old bushings if necessary.
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).
Assemble arms onto pins.
Slip entire assembly back into vehicle.
Reinstall both wiper pivots (do not tighten bolts yet)
Install drive arm to wiper motor.
Tighten wiper pivot bolts.
Test operation. Correct any problems.
Reinstall cowl grill.
Reinstall wiper arms. With blade about 1 1/4 inch from bottom of windshield.
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).

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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)