Hot Rod Forum : Hotrodders Bulletin Board

Hot Rod Forum : Hotrodders Bulletin Board (
-   Transmission - Rearend (
-   -   1965 Muncie M-21 4-Speed: No Drain Plug (

lakeroadster 04-07-2013 03:52 PM

1965 Muncie M-21 4-Speed: No Drain Plug
What's the best way to drain the old lube out of a M-21 Muncie? No drain plug, anybody got a home made remedy, short of removing the shifter, removing the front 4 bolts and rotating the transmission 90 degrees?


killeratrod 04-07-2013 04:50 PM

they have an electric pump and you can suck it out the fill hole. they are about 25 or 30 bucks Autozone, walmart.

killeratrod 04-07-2013 04:54 PM

also you can drill it tap it and install a drain yourself.

RWENUTS 04-07-2013 05:57 PM

Turkey baster dude!! Stop laughing!! I'm serious!!
Buy a big baster for 5 bucks, put a vac hose on the end and go fishin'.

AutoGear 04-08-2013 09:46 AM

they have suction guns you can get to 'insert' and remove fluid. Turkey baster would work, but you may have trouble getting sufficient fluid out. Original style Muncies (that have the revrse threaded nut) work best with 1 quart of a GL4 NON Synthetic 75w90 such as Sta-Lube #SL24229 from Napa. Race guys use Royal Purple MaxGear 75w90 or RedLine MTL(?). I usually only recommend the Sta-Lube or MAX GEAR (not RP's "synchromesh").

Here's what I use at home; got mine from Grainger for twice the price years ago

Google "16oz oil suction gun" Chi-com Freight has them for under 20 bucks. (Harbor Freight)

lakeroadster 04-09-2013 11:49 AM


Originally Posted by AutoGear (Post 1664193)
they have suction guns you can get to 'insert' and remove fluid.

Excellent. Napa's got em for about $20...

Thanks for your help!

AutoGear 04-09-2013 12:09 PM

you'll find all kinds of uses for it really. no problem

lakeroadster 04-10-2013 05:46 AM

For future thread surfers here's a link to similar thread:

Autogear: You still recommending using only (1) quart of GL-4, instead of filling it up to the drain plug with 3 pints?

All times are GMT -6. The time now is 07:14 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.