REMOVAL & INSTALLATION
See Figures 1 and 2
- Inspect the floor area under the seat and remove stray or stored items. If the seat has an under-seat storage tray, remove it.
- While not required on other these vehicles, removal of the sill plate or scuff plate can be helpful to remove it.
- Remove the end caps or rail covers from the seat adjusting rails. Each model uses a different style. Covers; pay attention to which cover goes on each rail. Each cover attaches with a positive lock such as tabs, side arms, etc. This lock mechanism must be released; the cover does not simply pull off the end of the rail. Use care in removal as the covers must be reinstalled and snapped into position. If the locking tabs are broken, the cover will constantly fall off the rail.
- Either disconnect the negative battery cable or at least turn the ignition OFF and remove the key.
- Identify the 4 retaining bolts holding the seat tracks to the floor. Slide the seat all the way forward on its rails and remove the rear mounting hardware.
- Slide the seat to the rear and remove the front mounting nuts or bolts. With the help of an assistant, lift the seat just enough to clear the mounts. Inspect around and under the seat for any wiring still connected. Using two people, remove the seat.
This is a perfect time to clean and vacuum the carpet, particularly if both seats have been removed. The amount of lost change to be found will probably make it worthwhile.
- The seat may be disassembled as needed, but most operations are not recommended for the owner/mechanic. Do not attempt to remove the seat covers unless equipped with a selection of upholstery tools, including hog ring pliers.
- The seat must be reinstalled as a fully assembled unit. Make sure that both seat tracks are full forward or full back on the seat. Any other position risks a crooked installation and attendant binding.
- Lift the seat into the truck and position it so that the mounts align. Install the nuts and bolts finger-tight only.
- Move the seat through its full range of travel, checking that it will lock securely in each position.
Tighten the mounting hardware to the proper torque value. Correct tightening order must be observed:
Inner rear, outer rear, inner front and outer front.
The bolts should be tightened to 9 ft. lbs (12 Nm) for 1979-91 models, to 12-19 ft. lbs. (17-26 Nm) for 1992-93 models. Check the seat motion and locking function after tightening the hardware.
- Connect any wiring which was disconnected.
- Install the end caps on each seat track. Make certain they are securely in place.
- Install any trays or components removed from below the seat.
- Install the scuff plate if it was removed.