Author Topic: Gear and transmission oil  (Read 1327 times)

Offline 65fastbk

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Gear and transmission oil
« on: December 17, 2013, 12:02:05 AM »
Hi,

What's the best rear end gear and transmission oil to use on my 65 mustang.  It's a 4 Speed top loader, and 3.89 gears open end!

Thx

Offline s2ms

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Re: Gear and transmission oil
« Reply #1 on: December 20, 2013, 02:09:08 PM »
I've been using Redline synthetic gear oils for many years. Their M/T-90 is made specifically for older manual transmissions, I use the 75W-90 in the rear end.

Dave

Offline zray

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Re: Gear and transmission oil
« Reply #2 on: December 21, 2013, 12:42:58 AM »
I use the Mobil 1 75w-90  or the Mobil 1 75w-140 when I know the car will see some  hard use. Been using them for over 15 years / 180,000 miles without any measurable wear in both toploaders & T-10 transmissions. The same lube in the rear end as well.

Z.
Looking for '65-'68 manual V-8 coupe
that doesn't need a new body