FORD 1999 Explorer - Manual (Page 176)

Launching or retrieving a boat
When backing down a ramp during boat launching or retrieval,
• Do not allow the static water level to rise above the bottom edge of
the rear bumper and
• Do not allow waves to break higher than 15 cm (six inches) above the
bottom edge of the rear bumper.
Exceeding these limits may allow water to enter critical vehicle
components, adversely affecting driveability, emissions, reliability and
causing internal transmission damage.
Replace the rear axle lubricant anytime the axle has been submerged in
water. Rear axle lubricant quantities are not to be checked or changed
unless a leak is suspected or repair required.
Disconnect the wiring to the trailer before backing the trailer into the
water. Reconnect the wiring to the trailer after the trailer is removed
from the water.
Recreational towing (all wheels on the ground)
(Neutral tow kit accessory)
On vehicles equipped with a 4.0L engine, an accessory is available that
allows you to tow your vehicle, behind another vehicle, with all the
wheels on the ground. Contact your dealer for more details. Do not tow
your vehicle with all wheels on the ground unless you install the neutral
tow kit as vehicle damage may occur.
Driving
176