Hello fellow 442 owners and enthusiasts. Been a while since I posted anything. Laying low the past months like most everyone. I did go to the Downriver Cruise with my grandsons and a few friends. Was nice to get out and there was quite a turn out of people cruising and tearing up Fort St. I have been trying to learn as much as I can about this 65. Previous owner only told me that it sat in some guys yard or garage in Wyandotte and he bugged the guy for years to sell it. Four years ago the guy had health issues and decided to sell. Other then that I do not have any history on the car. I do spend much time on the 442Bro site and Jason Ramsey’s Ultrahighcompression site. Two valuable resources about anything 442. Especially 1965. I have tried researching the VIN number but did not get anywhere with that. For now I will just keep trying to learn as much as I can about the 65 442 and what I have on this car that is original and what true condition this car is in. It is quite rough even in my inexperienced eyes.
The casting number on the Muncie trans is 3851325 from what I could find online is a 64-65 trans. The spline has one ring on it so if understand what I have been finding and what I read is correct this is an M21 close ratio. Dumped some trans lube taking the trans off and in the process of cleaning the trans itself. One of the drawbacks of not having much knowledge about working on a car of this age. I read that only 80w or 90w GL-4 lube should be used and synthetic or other lube could damage the synchro’s. Had much trouble finding the recommended Valvoline or Penzoil gear oil but found NAPA carries 80w-90 gear oil and shows on the bottle that it is made by Vavoline for NAPA and meets the GL-4, GL-5 standard.
I am wondering if I should drain all the gear oil out and replace with new or whether I should just top off what is in the trans. If draining all I am not certain how many quarts I will need. I read online 4 quarts. Not even certain the best method to drain the existing gear lube. Any info or suggestions would be greatly appreciated.

 

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Scott

I use the good ole valvoline 80 90 gl4 in my muncies ....

 

I did buy the Napa brand made by Valvoline but it specifically says not for use with synchromesh trans. I called Valvoline and the suggested MTF synchromesh manual transmission fluid. It says it is fully compatible with yellow metals including copper, bronze and brass. It does not state viscosity on the bottle or if it is GL-4. I looked on the Valvoline web page and it does show this as a synthetic oil so I am still not 100% I have the right oil. Guess I will have to do more research. Thanks for your reply.