remove the pan cover, and refill through the plug top of the diff.
danna spicer 70
399, includes slant 6, V8s, and tandem axles
each cylinder for the V-8s have two plugs, for better power output and cleaner exhaust.
This is typical for tandem axle trucks. Two axles are live axles, and the driveshaft goes into a power divider. The power divider supplies power to both axles.
I'm not sure on the front, but I'm sure the rear should be a Dana 60 if it hasn't been changed.
A tri-axle has two live axles and a lift axle.. if it's located in front of the drive axles, it's known as a pusher... if it's located behind the drive axles, it's known as a tag axle. With a tandem axle setup (which is what tri-axles, quad axles, etc. are, albeit with the addition of dead axles), the driveshaft runs from the transmission output to the power divider. The power divider is a differential which transmits power evenly to both live axles.
Pass side firewall. Down low behind the power steering pump.
On a rear wheel drive vehicle, the rear axles transfer power from the rear differential to the rear wheels.
Change spark plugs tp Platinum and Silicone plug wires and use Lucas Upper Cylinder Lubricant.
Varies according to wheelbase of the power unit, and the bridge length between the drive axles and trailer axles.
Dead cell in the battery itself or something is on pulling power from the battery. A light somewhere or a stuck relay.
For a typical, fivee axle combination (three axles on the power unit, two axles on the trailer), it's 18.