Here is what I did when I needed a longer dip stick due to filler tube extension. I bought a length of 1/4" alum rod, knocked out the pen in the oil cap that secured the old rod to the cap, inserted new rod in cap, screwed cap to tube, slid the new rod until it bottomed out, lifted up couple of inches, marked, cut to length and match drilled. Pro Sealed the rod to cap and inserted pin. I then poured in four quarts of oil, let drain down for a few minutes then inserted new dip stick in and using a 3-corner file lightly marked the oil level. Repeated procedure at 6 and 8 quarts. Using my genuine HF 1/8 stamping set, marked each file mark appropriately. Probably not the right way to do it, but what can I say, grew up on a ranch in OK, duct tape and binder twine. So far the only down side is I had to buy 10 4 foot lengths of the 6061 alum rod, so, needless to say, I have some left. Dan from Reno