[JasonW]

Wow, what a PITA! Just looking at it, you wouldn't think it was? Spent most of my time scraping the old RTV off (after I figured out how to slip the diff cover out from underneath the car), and transferring the new fluid into the diff.

Can anyone recommend a good fluid transfer pump? I just used mine for the first time, it's been sitting in my garage for about 5 years, lol. It absolutely sucks! I'm looking at getting something like this:

It looks like that'll work much better than mine. Mine has a hand squeeze bulb to pump the fluid so, in order to transfer it, I had to pinch off the tube going to the diff to suck fluid out of the bottle, then let go and pinch the tube going to the bottle to squeeze fluid into the diff. That probably took me a good 1/2 hour alone! Fun stuff.

 

[greg]

I bought something similar but found that the screw-on to the bottle was the wide neck one and both the ATF+4 as well as the Royal Purple containers for the rear diff use the narrow neck bottles. A real pain to transfer any other way as squeezing the bottles isn't an option unless you want to lubricate the pavement :naughty:. I used two old Mobil-1 bottles duly rinsed and now have one for the ATF and one for the RP.

As to the front diff, that RTV is a real pain to get loose not to mention that cleaning the residue off sans chipping or marring the case is an art. I got a set of gasket scrapers from Sears which made it somewhat easier. Compared to removing the metal gasket off the valve covers, the front diff is definitely a pain. For the rear I changed the cover plate for an Ultimate-12 which has a drain and fill hole so I won't have to go through that again.

greg

 

[jmac2000dge]

What type of fluid does everyone use? I plan on doing both of mine soon and never realized the front would be this much of a pain? let the fun begin I guess. :shock:

 

[greg]

See above post. ATF+4 for the transfer case and Royal Purple 75-90w for the diffs.

greg

 

[IndyDurango]

ATF+4 in the tranny, Mobil1 75-90w for the diffs.

Be advised, as compared to shop oils or even OEM oils, the stuff above ain't cheap!

IndyD

 

[JasonW]

Yeah, I had a fun Sunday. I installed a PML pan on the tranny, with ATF+4 (unfortunately, I could only find Valvoline locally), ATF+4 in the transfer case, and Mobil 1 in the front and rear diffs (PML diff cover to match the tranny pan )

The next go-around should be much easier.

 

[IndyDurango]

I've read that Valvoline and Mopar ATF+4 are the exact same formula and fully interchangable. I'm sure some BTOG.com readers will correct me if that's wrong.

I have Mopar in the tranny and a quart of Valvoline to add in there if ever needed so I plan on intermixing them fearlessly. Thus, I think your Valvoline ATF+4 is fine.

I switched at the last service interval from the original fluids and the tranny shop mix that they use if you don't stop them. Seems to me the entire ATF+4 and the diff oils I used have a different drag/feel to them. Let us know if you notice anything.

TIA,

IndyD

 

[FSTDANGO3]

I use Mobil 1 syntehtic in the diffs and ATF +4 original Mopar stuff in the tranny and transfer case.
I'm not taking any chances.
Steve
DOC Pres

 

[WarrensD]

Jason,

That type of manual pump is a fine design, but spend a few more bucks and get a brass bodied one (ITT/Jabsco.) They last forever.

 

[FSTDANGO3]

Jason, forget it! I'm surprised these 5.9 guys aren't telling you a 4.7 doesn't make enough power to use up the lubing capabilities of the gear lube. LOL
I still say stick with the original stuff and, oh yeah, the brass pump is a good thing.
Steve
DOC Pres

 

[IndyDurango]

Jason, forget it! I'm surprised these 5.9 guys aren't telling you a 4.7 doesn't make enough power to use up the lubing capabilities of the gear lube. LOL
I still say stick with the original stuff and, oh yeah, the brass pump is a good thing.
Steve
DOC Pres

We're just looking out for Jason's 4.7. It's a big brother, natural instinct sorta thing.

As for yours? it's too far gone

IndyD

 

[Unnamed]

I have the pump pictured above and wouldn't dare call it great, but I don't know how I'd have gotten the diffs filled without one.

The major problem was the pump wasn't very efficient and seemed to have a lot of blow-by. By the looks of it you'd think you'd be able to pump a significant amount in one movement of the pump? wrong! You had to really work to get it pumping but, after it was done, it was alright.

I think it'd be much better if the pump were a bit smaller. I'll bet the brass pump is waayy better than this one.

 

[JasonW]

Thanks for the replies, guys! I'll look into a brass bodied pump, then.

LOL at the big brother stuff.

 

[greg]

How easy are those brass pumps to clean and what's the price? Reason I ask about the cleaning is that using it for both the ATF+4 and the diff fluid you don't want to contaminate one with the other.

greg

 

[tomk]

http://www.absolutehome.com/home/improvements/34746-Plews-Lubrimatic-Fluid-Transfer-Pump--30108.html is similar to what I have (mine is a single-hose model, so I make more of a mess)

I suspect you can take that one apart and run a rag through it to clean it if you wanted?

 

[greg]

Thanx Tom. The cleaning was as you normally do the transfer case and diffs at the same time, you don't want to run 75-90w through it and then suck up ATF+4. I have two separate plastic hoses but the body of the pump is still hard to get clean?

greg

 

[FSTDANGO3]

I have one of those type as well as the other and it's real messy.
Clean up is a snap, just unscrew and run a rag thru it.
Steve
DOC Pres

 

[greg]

which model did you get?

greg

 

[jimbo]

I use on of those pumps that screw into the top of the quart bottles. For the gear oil I put a small piece of plastic hose on the tube of the pump. It works quite well.

 

[biggame]

It's possible to get the squeeze bottle up and into the front diff without spilling. I've never use a pump to change my fluid. Just stick your finger over the hole, stick the bottle (inverted) up in there and put the spout in the hole. You can squeeze it then leave it inverted to get the last little bit.