Good evening and thank you for inquiring with JustAnswer, my name is XXXXX XXXXX i will be the technician assisting you today. The threads on the rear spindles are not reversed thread, the left side would be expected to be reverse thread but Ford's quality engineers weren't bright enough to figure that out. There was a recall out in '02 or so i believe which was to install a cap over the nut to keep it from spinning loose. This is an extremely old recall but it might be on your vehicle, if you can provide me a VIN number i can check for open recalls for you. If your vehicle had its spindles replaced in the past with aftermarket parts chances are that it could have the reversed thread but it its original then its standard thread both sides. As for the size of the nut, it has been a while since i have had to remove one but if i believe right it is either a 30 or 32 mm. .
i have located the recall information below, but it has been changed due to unavailability of the old parts, see the information below;:
This program is being supplemented because the service parts originally supplied for this program (redundant wheel retention cap and bolt) are no longer available and the inspection to identify loose or damaged parts is no longer required. The service procedures and parts from Customer Satisfaction Program 01B85-S2 are being utilized in their entirety for this supplement.This document details the procedure for:
There are 3 service kits available for this program. Each kit services a different rear brake type; rear drum without ABS, rear drum with ABS or rear disc. We have supplied the bill of material for each kit to properly identify that the correct kit is being used to service the correct vehicle application.
Rear Wheel Bearing Kit - Non-ABS Drum
Carrier, Water Seal
320 Grit Paper (Emery Cloth)
Rear Wheel Bearing Kit - ABS Drum
Ring, ABS Sensor
Rear Wheel Bearing Kit - Disc Brakes
WHEEL HUB REMOVAL - ALL VEHICLES
NOTE: All figures in this document, except Figures 1 and 2, show rear drum brake configuration. Rear disc brake configuration is similar.
HUB CLEANING/INSPECTION AND WHEEL BEARING REPLACEMENT - ALL VEHICLES
NOTE: Perform this procedure on both removed hubs.
NOTE: When installing the new wheel bearing into the hub assembly, the black rubber seal faces up.Using a suitable drift and press, press the new wheel bearing into the hub assembly. See Figure 4.
SPINDLE PREPARATION/INSPECTION AND SEAL INSTALLATION - REAR DRUM BRAKE EQUIPPED VEHICLES ONLY
SPINDLE REPLACEMENT - REAR DISC BRAKE EQUIPPED VEHICLES ONLY
WHEEL HUB INSTALLATION - ALL VEHICLES
i have ran your VIN number through and i have some very good news for you. The recall for the rear wheel retention isn't on there but the coilspring recall as well as the fuel pump recall are. They will inspect your coilsprings and replace them FREE of charge if they are broken, also, the fuel pump recall you can schedule a time for your vehicle to go to the dealer and they will give you a brand new fuelpump and fuel filter free of charge as well. Please contact them on this issue as when the fuel pump goes out, as they commonly do, it will leave you stranded whenever it decides to fail. You can refer to the information below, the OASIS report on your vehicle
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