There is enough room under the truck that you can just put a short piece of
tubing on the end of the gear oil bottle and tip it up and pour it in threw the
fill hole. No need to invest in a pump.
To actually measure and determine back lash you need a dial indictor and some
sort of mount (most common is a magnetic base mount) to attach it to the
housing. You set it up with the pointer on a tooth close to tangental to the OD
of the ring gear. Rotate the ring gear back and forth to measure the clearance
between it and the pinion gear. When setting up new gears you adjust for .006"
to .009" of back lash. Used gears are going to be looser .010" to 0.013" (not
sure on the exact numbers, check FSM). The service limit will have a max back
lash that is even a looser again (you will have to consult the FSM for a
service limit).
FWIW, I have 3.92's in my 99 Dakota with an open rear end.
Dave Clement
99 SLT+ CC 4x4
In article <IBEMKIFBMJNJOEJOMAJNGEGLCCAA.gcouriel@bellsouth.net>,
gcouriel@bellsouth.net ("Gabriel A. Couriel") writes:
>
>
> do i need to replace the old gasket? No. there is none. RTV and you'll be
> fine.
>
> Do I need a drain pan? Yes. unless you want your driveway looking like the
> exxon valdez spill.
>
> do i need any special wrenches? No.
>
> how do i fill it with gear oil again? slowly ;) actually, you can get a
> pump with a suction end at one side, that will suck the oil into the
> pumpkin. fill it until it reaches the fill-hole.
>
> What gear oil should be used? 75W90 is what is recommended.
>
> I was just going to look for any chipped or cracked teeth in the gears.
> how does one
> check for "play" in the gears? I don't know this one.
>
> this is a non-LSD type differential. are you sure? just cuz the wheels
> don't spin in unison doesn't mean it's not a LSD unit. the LSD may not be
> working. it seems weird to me that your truck has 3.92's but no LSD.
>
> Gabriel A. Couriel
>
This archive was generated by hypermail 2b29 : Sun May 01 2005 - 01:40:55 EDT