A few quick questions: (just got 2000 Z71 Siverado)
I noticed a "clunk" around the front of the transfer case at low
speeds... checked the rear u-joint on the front drive shaft & it
appears to be out....
1) Should the front drive shaft be turning when the vehicle is not in
fwd? The noise seems to accelerate as the vehicle does.... (i have
checked the newsgroup and noticed a lot of ppl having trouble with
noise in the rear related to the u-joint/yoke - this one is in the
front shaft :-)
2) The boot on the rear of the shaft has kind-of thrown me a curve....
does anyone know of a place to find directions for replacement.... how
do you remove the rear u-joint on the front shaft?
3) can i remove the front shaft and still drive the vehicle? i'm
afraid that the boot is there for a "reason" - i figure it holds the
lubricant in the transfer case... or is there a transfer case seal
behind it and it just keeps lubricant on the splines that the shaft
thanks in advance
If you have the automatic t/case (you should see an "auto4HI" button
on the dash, along with the usual other ones), then yes, the front
driveshaft will turn even when it's in 2wd. The clutch pack in the
t/case is designed to maintain a small amount of torque on the
front shaft even in 2wd.
You are probably seeing the fact that the boot has two small
clamps, very similar clamps to C/V boot clamps. You can do
one of two things. Just cut off the rear most clamp and get
a new one at the dealer, you need boot clamp pliers to
"properly" cinch up the clamp when you re-install it.
Or, you can use a small screwdriver and find the section
of the clamp that is used to tighten it up when squeezed
with boot clamp pliers and just spread it out a bit until
it's loose enough to be able to pull the rubber boot off
You can, but you shouldn't. The boot is there strictly to keep
the splines from getting crap in them. There is still a regular
front output shaft seal on that t/case. So in a pinch, yes you
can pull the shaft and drive it.
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