Universal Transmission Dipstick tube

Hello All

Here some pix Moderator Sidewinder posted years ago with M12 dimensions for PN# 3191863 dip stick 

Yes your question makes sense. Unlike most oil dipsticks I don't believe the M12 dipstick protrudes beyond the dip stick tube. Therefore if the dip stick tube were removed from the M12 while the transmission fluid read full on the dipstick, fluid would run out all over the floor. The photos above unfortunately do not show a dip stick in the tube and where the tip ends in the tube. So if the tip ends before the end of the tube , how far up the tube is the tip when the dip stick is pushed in the tube all the way? This info and some math skills will provide you with the answer to your question.

amcenthusiast wrote: Can't find a dipstick tube? Always check the 'Vendors section' right here on AMC Forum. Next, remember some of the vendors like Galvin's, American Parts Depot, Planet Houston AMX, AMC Lives, South Texas AMC -they all have used parts... call 'em and ask. Next, remember how close AM Warner Gear iron case automatics are to the Ford Cruise-O-Matic iron case units (guessing '50 through '66 'small case' iron Cruise-O-Matics) -since they made about one million units per year, you should be able to find a used CruiseO dipstick tube. ...just checked eBay but did not see one this time... Next, remember this is no ultra high tech tube: you can bend a new tube out of common conduit tubing avaliable from most hardware stores (I made one for my first Marlin way back around '94) -just pack the tube full of dry sand, clamp it and heat with torch where you wanna make your bend until cherry red then bend it around something round (for your 'die'/tube bending die) ...Something else is to deal with header applications: the tube can be cut to make clearance for the header pipe/collector, then brazed back together (easy fix, for someone who can braze -go meet your local welding shop metal workers) ...or if its damaged by accident, it can have a new section spliced in (hey; if it's metal, we can fix it) ...and polish it too to a mirror finish, like chrome -just depends on how much time you're willing to put into it (fun to learn how to polish; applies to all metals) polished metal with a braze on it look cool IMO Always clear coat polished metal after thorough cleaning/wax stripper use new Krylon resists yellowing better than clear lacquer... Here's a pic of how I did mine. This angle cut was made for clearance to the header pipes but not to reduce the length of the tube so the dipstick still 'reads' correctly: To make room for Rambler V8 headers on a Gremlin, I made this one so there's just enough clearance to get a wrench on the attaching nut/sleeve. This also serves to keep your trans fluid cooler vs when the tube is too close to the headers = super heated trans fluid!  ...this will make your trans fluid last longer wink-wink (er, the whole unit, ahem) wanna run 500 degree trans fluid? I don't... So think about having a custom tube made for your favorite car ..for a metal fab guy, it's easy to do... Two more suggestions, where to buy good used trans dipstick tube: John's Auto Salvage Seguin Tx (on web) CTC Auto Ranch Denton Tx (on web) They both pack and ship. Get one for any iron case Shift Command or Flash-O-Matic (from '63 to '70?) any one of these should be a close fit for your car but Rambler V8 requires a slightly different bend to clear the starter motor (then use sand fill & torch bent method)

Edited by darnelld - Aug/09/2020 at 6:49am