I asked this question on another thread but probably
should have started a new one. Family have a 95 Century
3100 that is ready for its second intake gasket job, the first
one was eight years and 40k mi ago. They are trying to decide
between taking it to an independent garage or back to the dealer.
Are the current gaskets from GM similar to the Fel Pro
Permadry (metal frame) or is GM still using the redesigned
plastic frame gaskets with the metal buttons in them? This
would be for a 95 3100 VIN M.
If you can get metal frame gaskets from FelPro, then use them.
We are still being handed the plastic frame with the metal
buttons for this engine. GM has changed over to metal frame
gaskets for the 3800 v-6, and the Vortec v-6 and v-8. I
suspect that GM must have a bunch of those plastic
frame gaskets in their warehouses that they need to get rid
We see lots of these trucks with front diff side bearing failures. Usually,
you will notice quite a difference in driveline noise when you shift into
auto4hi or 4hi. Some noise is normal, but when the bearings get quite
bad, it will be loud.
A simple check is to pull the drain plug on the front diff. It has a magnet
attached to it and if the bearings are worn, you will see "shards" of metal
sticking off the end of it. If all you see is a bunch of "fuzz", that
is normal. It's not a completely accurate way to tell, but between
excessive noise (which is often quite subjective) and pieces of metal
on the drain plug...it's fairly accurate.
Is there anything that I can do now to stop the bearings from going
bad. I've had 4WD's over the years and never had to change anything in
the front or rear diff, all of the trucks were used to snowplow with.
This Suburban is only used for pleasure, we drive older 4cyl Cavaliers
during the week. Thanks.
Not much really. If it's going to fail, it will. I would
avoid using auto4hi and 4hi in anything but low traction
conditions. Some people like to just leave it in auto4hi,
but I really think this is a mistake.
Not using the 4wh.dr. on dry surface makes perfect sence. This is good
info. I will pass this info. on to my wife as she will be the primary
driver in snowy weather. The Auto4 was not around when we had our last
4x4 (Warner locking hubs). Thanks very much.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.