Muncie 4 speed transmission
- Thread starter 61BelAir
- Start date
Doubt you will find 85-90, but 80-90 GL4 can be found at tractor supply.
Thanks, I will check with my local tractor supply. Never thought about them! Thanks again.
Thanks!
Ravenol MZG
Thank you
That transmission is a dinosaur and I’d have no problem using a 75W90 GL4 in it.
- Joined
- Jun 13, 2013
- Messages
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I used that in 2 stroke dirt bike transmissions back in the day.
Where’s my Greta sound effects button?
HOW Dare YOU
I have used this in a few of my Muncie equipped cars. It has been fine. It is available at NAPA.
https://www.crcindustries.com/api-gl-4-multi-purpose-gear-oil-1-gal/
I also have used Redline MTL if you want a synthetic, it also has been fine for me.
https://www.redlineoil.com/mtl-75w80-gl-4-gear-oil
Redline has numerous other viscosity choices as well in a dedicated GL4 lube.
https://www.crcindustries.com/api-gl-4-multi-purpose-gear-oil-1-gal/
I also have used Redline MTL if you want a synthetic, it also has been fine for me.
https://www.redlineoil.com/mtl-75w80-gl-4-gear-oil
Redline has numerous other viscosity choices as well in a dedicated GL4 lube.
M20, M21 or the M22 Rock crusher? Love the whine in the rock crusher 
I'd put Redlines MT-90 in it if it were me. It is a GL-4 75W-90. Great stuff!!
I'd put Redlines MT-90 in it if it were me. It is a GL-4 75W-90. Great stuff!!You can probably use 75w90 with no problem.
Amazon has Triax Synergy Gear 75w90, or you can buy it directly from Triax. It is probably the best you'll get at a fair price.
Amazon has Triax Synergy Gear 75w90, or you can buy it directly from Triax. It is probably the best you'll get at a fair price.
- Joined
- Jun 13, 2013
- Messages
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The Triax looks a little thin, I suggest Ultra Lube GL-4 75W-90 GL-4
https://ultra1plus.com/transmission/gear-oil-75w-90-syn-gl4.html
https://ultra1plus.com/transmission/gear-oil-75w-90-syn-gl4.html
