I have a 1988 4X4 1500, 350 throttle body engine. auto, shortbed (stepside).
The front differential casing is cracked. It has a 342 gear.
I have a replacement but would like suggestions on replacing it.
If there is a step by step procedure I would appreciate any input.
I have changed engines but never changed the front differential.
Any help or suggestions appreciated.
Thank you in advance..
It's a complete casing with gears etc..
Would really like any hints to dropping it and replacing with the new one.
Everything should be bolt off, bolt on..
But never did it before and if there is anything like how to support the
truck, things to do, to watch for etc..
Like to know..
Any suggestions or tricks appreciated..
Replacing it as a unit is not bad at all as its removal is pretty
straight forward. The only extra you need to deal with it the front
axle disconnect. O would suggest that you change upgrade it to the
servo driven one that came out about the time while you have it apart.
The older ones where based on heating a gas bubble that cause
disconnect to engage while the newer style is servo driven and will
start conected even when power is removed and is more reliable. (with
old style if you park it in 4wd, it will disconnect when you shut it
off while the newer style will not until "told" to do so. It can be
retrofited to older models with a harness adaptor that adds a extra
Strange thing is I just went thru my GM dealer manuals and it tells
all about have to repair and inspect it and even how to replace axle
disconnect but nothing on removing it. YOu nasical disconnet front
driveshaft, disconnect axles fron flanges and remove bolts holding
diff to truck frame. THe only other attachement to it is the wires for
the axle disconnector.
also when in cold water or snow, mine would not activate the bubble because
it was too cold.
i changed to the newer on with great success in cold temp.
You wrote on Fri, 02 Feb 2007 16:23:44 GMT:
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