Here’s a handy addition to any Jeep owners garage!
I bought a £5ish, cheap sprayer unit from The Range, a shop similar to B&Q and I’m sure they are just as cheap in Wilkinsons etc. I then simply modified the hand applicator part using a piece of copper plumbing pipe the same diameter (10mm IIRC) to look like these old pictures.
You can use it for filling all the different oils from the diffs to the transfer and main gear box. You just need to flush it out between oils. For the diffs, without a fill line, you might want to pre-measure the quantity of oil and just blow the whole lot into the axle in one go, whereas when you fill the transfer box you can just fill it to the overflow level.
The pump certainly makes the whole oil change/fill process a doddle.
