New from Ca
#1
I was doing some research on Mach 1's and this seemed like a good community to be a part of. I'm helping my dad get his '69 Mach 1 road worthy, giving him some incentive to work on it himself. He's had it since '74 I think and is the third owner, got it with a 351W and a blown head gasket.

351c now with Holley 650, headers and now straight pipes. I cut off the mufflers last weekend. They looked like shotgun shells went off in them. My first time actually under the car amazed me at the great condition of the frame and under body.

The clutch is shot so for Fathers day my bothers and I are doing the clutch. Got a Fidanza 13lb flywheel and McLeod Super Street Pro Clutch to match up to the 4spd with Hurst shifter he already has. I'm tempted to put some Redline synthetic fluid in the 4sp, what do you guys recommend? I have good experiences with Redline MTL90 for my '82 Datsun 280zx but that is a far newer transmission than the Mach 1. I'm in northern Ca so 100 degree hill climbs are normal, I usually use the heaviest recommended specs I can find.
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#2
Welcome.

Glad to have you here with us.

What a great way to help your dad get back into what has evidently been a former big part of his life.

As to the synthetic fluid, I would imagine it would be a benefit to the top loader as it would for any gear driven part.

All the best.
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#3
Welcome to the club, sounds like a great project, love the 69s. I'm no help on the fluid but I'm sure someone will be along soon that can help.
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#4
Welcome to the site...I have used synthetic fluid before in a newer T-5 transmission in my 65 Mustang and was happy with the way it shifted especially in colder temperatures and experienced no problems whatsoever. I have a freshly rebuilt top loader in my current project with no miles on it and I am running the less expensive NAPA standard gear oil for the break in period but contemplating using synthetic oil myself once I drain the break in oil. I have read mix reviews online about using synthetic oil in top loaders but I am a strong believer in synthetic and try not to believe everything I read. I too look forward to hearing the experience of others using synthetic in a top loader.

Please share some pictures of your father's 69 Mach. We would love to see it.

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