Never use synthetic oil for a flat tappet engine break-in; too slippery and rings will not seat...among other problems. Always use the common grades of oil, ie 30wt or 10-30w..., with your Zinc/ZDDP additive.
while on the oil subject,whats a good break in oil for a newly rebuilt poly with hp cam and stuff. how about amsoil 30w break in with zink?
On Sun, Oct 7, 2012 at 4:58 PM, Gary H.
<62to65mopar@xxxxxxxxxxx> wrote:
Use Mopar "Hypoid Gear Additive, Friction Modifier" - - part number 4318060 with regular lube.
One option for synthetic: "AMSOIL Severe Gear is compatible with most limited-slip differentials. If limited-slip differential chatter occurs, add AMSOIL Slip-Lock™ friction modifier additive."
http://www.amsoil.com/storefront/svo.aspx?=zo=1606470
Gary H.
> -------Original Message-------
> Since I have to put lube in my 4 speed and rear differential, I
> thought it might make the 4 speed tranny shift better. I can ask
> Brewers their opinion on what or if on the tranny lube, but who to ask
> on the shur-grip diff.?.......................MO
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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!
1962 to 1965 Mopar Clubhouse Discussion Guidelines:
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http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
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