Use Caulking Gun to Fill Transmission and Differential
 

Just thought of this yesterday and thought it might help folks make the messy job of filling your trans. and diff. with gear oil, etc. Also steering box with corn head grease, etc. Works great. You can"squirt" the gun at any angle.

1.Remove the plastic end cap plunger from empty caulking tube and clean out the insides of both nice and clean. I used gasolene.
2. Cut spout so it has a 3/8 in. ID.
3. Screw in 3/8 dia. bolt just a few threads to prevent any leaking.
4. Pour gear oil into cleaned out caulking gun. It holds 15 oz.
5.Insert plastic plunger.
6. Insert cartridge in caulking gun, unscrew bolt and pull the trigger to fill.
7. Remove plastic plunger through the spout with 1/8 dia. rod, wooden dowel or long thin screwdriver.
Empty can was used to support cartridge. Use different cartridges for specific lubricants.

Re: Use Caulking Gun to Fill Transmission and Differential
 

Brilliant and way less messy, and not near as wasteful, than other ideas I have tried. Well done, sir!

Re: Use Caulking Gun to Fill Transmission and Differential
 

I particularly appreciate this kind of thread. 19Fordy gives us a good solution to a problem with pictures and narrative, so that his good idea makes sense to the densest of us.
Thanks for the information.

Re: Use Caulking Gun to Fill Transmission and Differential
 

Great idea!!!.....but I see no good use for STP oil treatment. :rolleyes:

Re: Use Caulking Gun to Fill Transmission and Differential
 

Why reinvent the wheel.
I buy a gallon container of gear oil that has a pump and hose/nozzle with it to fit in the filler hole.

Re: Use Caulking Gun to Fill Transmission and Differential
 

I bought a pump from Amazon with my one galloon Stalube GL4 gear oil. It's about $10.

https://www.amazon.com/Custom-Access...9BYWYB97GAH2A4


https://images-na.ssl-images-amazon....L._SL1500_.jpg

Re: Use Caulking Gun to Fill Transmission and Differential
 

Please share more info? Brand and where you purchase?

Re: Use Caulking Gun to Fill Transmission and Differential
 

Re: Use Caulking Gun to Fill Transmission and Differential
 

Yep that's all I use. Have 3 or 4 of them. Used for the last 15 or 20 years. ;)

Re: Use Caulking Gun to Fill Transmission and Differential
 

I posted a URL with the Amazon Link. Click on it to go there. The one I bought is a 36671 Pennzoil Fluid Transfer Pump. I only used it once so far, so I can't say how long it might last. It is all plastic, so not all that sturdy, but you are only pumping a little gear oil.

Re: Use Caulking Gun to Fill Transmission and Differential
 

Years ago, I bought a suction/pump device that looks like the caulking gun set up from NAPA. It was probably used in the old days to suck oil out of the oil filter canister as well as filling trans and difs. I would think that they would still be available.

Re: Use Caulking Gun to Fill Transmission and Differential
 

They are still available. I bought one like you mention last year at Advanced Auto, but have not used it yet. I also carry about a one quart bottle with what looks like a simple liquid hand soap pump screwed on top for adding small amounts of gear lube to trans or rear when traveling on tours. Works very well.

A lot of good ideas presented here on this thread.....all good in my opinion.

Re: Use Caulking Gun to Fill Transmission and Differential
 

I make a 50/50 solution of synthetic gear oil (90wt) and synthetic grease to put into my steering box, u-joint to put it in I use a air powered grease gun--less messy and works good. I like the caulk tube idea, will give it a try

Re: Use Caulking Gun to Fill Transmission and Differential
 

Mercury Marine
Scroll down for more options
10 yrs of yearly lower unit gear oil changes...SFSG

Bob
;)

Re: Use Caulking Gun to Fill Transmission and Differential
 

I like this idea.
I have one of the pictured pumps and as stated above, it doesn't reach down far enough into the container.

Re: Use Caulking Gun to Fill Transmission and Differential
 

Can't wait to try the caulking gun trick. And I have been known to add some stp as well. Thick is good in a crash-box. Thank you for the idea!

Re: Use Caulking Gun to Fill Transmission and Differential
 

I got one of these at Advance Auto Parts
http://hardwareonlinestore.com/index...hg7f5djqitnahs

Re: Use Caulking Gun to Fill Transmission and Differential
 

Great idea 19Fordy. Thanks for sharing. I am going to make one and give it go.

Re: Use Caulking Gun to Fill Transmission and Differential
 

Anyone know anything about this gallon container? Brand & where to buy?

Re: Use Caulking Gun to Fill Transmission and Differential
 

NAPA. Gear oil:
https://www.napaonline.com/en/p/SLRSL24239

Gear oil pump;
https://www.google.com/search?tbm=is...=1515248440665

Re: Use Caulking Gun to Fill Transmission and Differential
 

I us e the pump JimG pictures - works pretty well for rear ends and transmissions. I don't know of anything that is really that is a perfect setup - it's messy at times but not expensive. I usually get a couple three years out of one

Re: Use Caulking Gun to Fill Transmission and Differential
 

I've been using a suction gun like this forever. I like the caulking gun idea. It looks like more work but would move 600W easier.