Front & Real Differential Fluids

[slutty22]

Even though you drain the trans huge amount of the old fluid remains in there, it's difficult do drain all the old fluid a 100%

I was hoping to get it all, I disconnected the cooler and with everythin unhooked and open I started it up and ran it through the gears hoping to pull out as much as I could, at any cost its shifting a whole lot smoother, not sure if I should attribute that to the fluid/filter or the missing bolts in the trani mount, my guess is they both helped

[Gussie2000]

I was hoping to get it all, I disconnected the cooler and with everythin unhooked and open I started it up and ran it through the gears hoping to pull out as much as I could, at any cost its shifting a whole lot smoother, not sure if I should attribute that to the fluid/filter or the missing bolts in the trani mount, my guess is they both helped

Good,With a sucking pump you may be able to get almost all the old oil outter the trans

[Gussie2000]

Yesterday i flushed & refilled my VX's differential fluids,the rear had a lil leak & the pinion seal were replaced. I did it because the VX LSD developed a kind of kicking behavior,ever time i make a full stop the differential behaved like the following car just slight tapped your bumper,thought something was going wrong with the differential assemble.

The mech checked the differential for potential damage,hopefully any was found.Said the old fluids were very clean & still with a high concentrated viscosity level.

I add the castroil full synthetic 75w-90 (black color bottle) with a bottle of LSD addditive by CRC industries which meets GM's LSD requirements called K&W,very happy with the outcome

Though i can share this one with guys,specially if any of you are'bout to do the same.

Have good one guys

[pbkid]

ok i know this has been beaten a little bit to death, and i have read this and other threads multiple times...
so i finally broke down and spent $120 at advanced auto parts today...

i just wanted to make sure that i got the right things...

front diff-
1.5 qts. of Mobil1 Synthetic Gear Lubricant 75W-90 at GL-5 quality

rear diff-
3.2 qts. of Mobil1 Synthetic Gear Lubricant 75W-90 at GL-5 quality
add 6fl oz. of LSII (limited slip axle additive concentrate) made by BG part no. 328

x-case-
2 qts of Mobil1 Fully Synthetic ATF Mercon V (for Ford, GM vehicles)

tranny-
4 qts of Mobil1 Fully Synthetic ATF Mercon V (for Ford, GM vehicles)

drain bolts- 24 MM socket

so, how did i do?? did i purchase the right stuff guys???
im not very intimidated by the F/R Diff or X-case, but the tranny does scare me a little

[nfpgasmask]

Well Jack, are you going to drop the tranny pan and change the filter? If you have never done that, I personally think it is something you should do.

The diffs are super easy. The tranny is a bit of a pain if you are going to drop the pan and do a full service and swap the filter.

You have to support the tranny with a jack stand and drop the big cross member, and then you can get at the pan and drop it. Replace the gasket and the filter and clean the pan and magnet out real nice, refill, and your VX will be a happy camper.

Honestly, it is really simple, it's just messy and hot under the VX. And get one of the those graduated funnels with the lid, tube and valve attached to it from Wal*mart, add some clear tubing from home depot and then filling the tranny is very easy with a helper (one person holding the tube in the hole, another person holding the funnel and pouring the fluid) using the siphon method.

Bart

[pbkid]

Well Jack, are you going to drop the tranny pan and change the filter? If you have never done that, I personally think it is something you should do.

The diffs are super easy. The tranny is a bit of a pain if you are going to drop the pan and do a full service and swap the filter.

You have to support the tranny with a jack stand and drop the big cross member, and then you can get at the pan and drop it. Replace the gasket and the filter and clean the pan and magnet out real nice, refill, and your VX will be a happy camper.

Honestly, it is really simple, it's just messy and hot under the VX. And get one of the those graduated funnels with the lid, tube and valve attached to it from Wal*mart, add some clear tubing from home depot and then filling the tranny is very easy with a helper (one person holding the tube in the hole, another person holding the funnel and pouring the fluid) using the siphon method.

Bart

well, to be honest, i was going to just change the fluid, but i think you are right that if im going to spend the time and money i might as well spend a little extra and do it right...

i just might need a little more walking through on the tranny service...

1. i understand dropping the crossmember, and i think i understand dropping the pan (done after you drain it, right?).
2. when you drop the pan, is it the one thats kinda in front of the tranny (looks like its between the tranny and motor?)
3. and it has those bolts all the way around the phlange that connects it to the tranny, you just unbolt those and it comes off??
4. am i going to need any type of gasket?
5. do i need a pump or just a funnel with a long hose to fill it?
6. am i going to need 10 qts to do the full service?
7. did i get all the fluids right??

and lastly...what the do you do with all that damned fluid??? after changing everything im gonna have like 15 qts of old fluid laying around??
do you guys just drain fluids like these into milk jugs??

[nfpgasmask]

Jack, I'll PM you phone number. I can always assist over the phone if you get stuck. I've done mine twice now.

Yes, you basically have the process down. You just need to go to the parts store and get a filter for the VX tranny. Usually about $30-$40. The filter should come with the gasket. Take the gasket out right away, get some heavy books and flatten that sucker out under the books for a day or two. If you don't, you will have a HELLUVA time getting it to sit right on the pan. I agree, just draining and refilling is a halfie job. I think 9 quarts should do it.

The first time I did my tranny I used a pump to push the fluid up and in. It took FOREVER and I spilled A LOT of fluid allover everything. I highly recommend the funnel and siphon method. I think my funnel cost about $6 from Wal*mart and then you just need an extra length of clear tubing. That is the easiest and cleanest way to fill the tranny. And remember to reference the instructions to check the level when you fill it, the process has been posted a million times on here.

The only problem you may run into if this has never been done on your VX before is a rotten and stuck on gasket. Once you remove all the bolts, the pan should come free. If your pan has never been dropped, it will probably be stuck there with the rotted gasket. Take a 2x4 about the length of your forearm and put it up against the pan, whack the 2x4 a few times with a rubber mallet and it should come free. Then have fun scraping the old gasket off the lips of the pan and housing. Be careful when doing this, do not use a flat blade screwdriver or anything that could mar the mating surface. Clean the pan out real good and inspect the magnet for excessive metal shavings. No matter what, you will have some metal shaving or more like a metal paste attached to the magnet. Wipe all that clean.

If you have a helper, it makes things faster if you fill the pan with a quart or 2 of ATF before you lift it up and bolt it on. Otherwise, filling can take a little time.

Another tip, take your VX to the car wash and pressure clean the beejesus outta that area and over the cross member to get as much dirt and crap out ahead of time, otherwise it will be raining dirt the whole time you are under your VX.

Give yourself a full Saturday.

When you are done, make popsicles with the old fluid and pass them around to the kids in your neighborhood.

JK, take it all to your parts store and dump it. I know Kragen here takes oil and ATF for free.

Bart