Bob, the rear valance is a plastic fill panel that covers the area
where the bumper should go. Your truck came with a valance instead of
a bumper.
I believe the factory axle ratio is 3.92.
Once you attain a constant cruising speed the torque converter locks
up to prevent any slippage and power/mileage loss. Standard on most
new vehicles. A torque converter is BASICALLY 2 fans back to back and
encased in trans fluid. One fan connected to the motor the other to
the rear wheels through the transmission. When the motor fan spins
fast enough it induces the second fan to spin and move the car.
Obviouslythe second fan wont spin as fast, hence slippage. Once up to
speed the 2 fans lock together to elimate the slip.
And finally, new motors have much tighter clearances and can maintain
good pressure with lighter oils. You will actually make more
horsepower with lighter oil. Stick to 10w30 UNLESS you live in the
Arizona desert!
Hope this helps. (I just asked the same questions about my 98!)
Joe Borg
______________________________ Reply Separator _________________________________
Subject: DML: Questions on my Options
Author: <dakota-truck@buffnet.net> at internet
Date: 2/18/98 3:48 PM
I was looking over my optional equipment list (a long and pricey one) and
had a couple of questions. (98' Dakota 4x4 Sport)
When I purchased the truck, I noticed the bumper in the rear was missing, so
I made the dealership agree to order a rear bumper for the truck.
Looking at the options, I saw one that says "Panel - Rear Valance". I don't
know what a "valance" is.
I'm wondering if this was an option in place of the bumper. It's pretty much
just a plastic panel where the bumper should be. I think it's ugly, but I
saw these for sale at a truck supply store yesterday. Maybe I wasn't
supposed to get a bumper?
Also, the axel ratio says 3.90, but the Max Rated Loads assumes a 3.92.
And what's a lockup torque converter?
One last one, would 10w40 be a better choice than 10w30 for this engine in
the summer? I used to have a 440 charger and 10w40 was recommended in the
summer.
Thanks,
Bob B.
Philadelphia
4x4 Sport 318 All the goodies (except a rear bumper).
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