96CollectorLT4

I recently tried to suck out diff oil, with a suction gun and no matter how I manipulated the hose I could only get out about half a quart. I used a small vaccuum line so it would be flexible and small enough to get to the bottom of the case, but no luck. Has anyone else have a better way, other than dropping the whole rear suspension out of my 96.
Is it possible, or has anyone tried drilling and tapping the case to make a drain plug on the bottom or rear of the case? Any help would be great!!

dlmeyers

Is the suction gun up for the task. Is the hose flexible/long enough to reach the bottom.

Are you sure it was full?

I would get some flexible hose, dip in, and check for residual fluid. Make sure there's something there.

I've had good luck with the NAPA suction gun and hose.

Some people drill, tap, and install a plug.

Good luck. I hate that job.

dlmeyers 90 coupe zf6 3 speed shocks


[Modified by dlmeyers, 10:04 PM 4/30/2004]

4DJ2NJOY

Corvette Central sells a Differential Drain Plug Kit Item# 584029. I was thinking about getting one myself for my vette.
www.corvette central.com
:seeya :steering: :auto:

96CollectorLT4

Yes it was full, the oil was running out of the case when I took out the plug. And the suction gun was brand new Snap-on, and was up for the job and the hose was long enough too. It just kept hitting something and sucking air, but only put a posi lube and half a quart back in. With only 18K miles on the car, the oil was pretty black, so I would like to do a thorough change.

Bilyk

:lurk:

i plan on doing this same job next week

Glasman66

The next time I go to change the fluid, I heard you can drill out the middle bolt at an upward angle to empty the diff. Then you silicone the nut and replace it and you're all set.

mackeyred96

I've got a plug in the batwing.

jackdaroofer

:cheers: For what it's worth :rolleyes:

I use a "battery water" squeze (spelling) ball syringe to wich I have attached plastic tubing with a piece of wire coat hanger taped around it. It took a lilltle doing to get the right angle on the coat hanger, but I can get the whole contraption down close to the bottom of the housing

:seeya
:steering:

vinnies87

Nice idea jack... :thumbs:

96CollectorLT4

Good idea, but I ordered a kit from Corvette Central to make a drain.

CanadaVette

I will be doing my sometime soon plan on using the old suction method.

krazy1

Please post the location to drill for plug installation.

96CollectorLT4

Sure thing dude... :thumbs:

larryfs

you need to drill and tap the case. then you can change it like a man instead of playing with suction guns and such.

vette punk

I use a Mity-Vac vacuum pump with their fluid transfer kit(optional). The pump and kit were only $65.00, available from Eastwood Co. or some auto parts stores. Works great. Insert the clear hose on the pump into the fill plug hole and pump it out into a mason jar. It can be used to pump out any fluid,oil,ps fluid,brake fluid etc.
Jim B.

abtanner

I too, need to install the drain plug. I have the tools--drill/tap,plug. All that's needed is the proper location to drill.
Could someone please post the "location timplate"? Or an discreption/measurements for the 'plug placement.TIA
Al

corvette1990

I bought a plug with magnet, from NAPA, I got a drill and a tap. LOCATION pulleeeeeezzzzeeeeee.....

96CollectorLT4

If you would have read the whole post, you would have learned that I already ordered a kit to make a drain, like a MAN!!!! Thanks for the wheels by the way, remember me now.... :seeya

96CollectorLT4

I will post drill location as soon as I get the kit guys...relax!!!!!

krazy1

Has anyone got the location to drill the hole for the plug? I have drill, bits, tap, and will get the plug. I hate to pay $45.00 for directions.