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November 14th, 2013, 08:08 AM

Olds442redberet

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Calling all experts

I need help identifying my T400 tranmission. I am betting it isn't original.

What am I looking for when looking at a 1970 442 T400?

Thanks

November 14th, 2013, 08:14 AM

Stefano

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The VIN stamped into the trans is a key identifier and the trans tag will have an application code as well as a production number sequence.

November 14th, 2013, 08:15 AM

Olds442redberet

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What application code should I be looking for?

November 14th, 2013, 08:17 AM

StickW31

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"og"

Last edited by StickW31; November 14th, 2013 at 08:18 AM. Reason: wrong number

November 14th, 2013, 08:21 AM

72 w29 all green

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The bottom left corner of tag will have a 70 for 1970 and an OG. The pic shows an OC (different application), but this should help you figure it out.

e30e7d6e-23ed-4b94-b7e5-67416a11e811.jpg

November 14th, 2013, 08:43 AM

Olds442redberet

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Cool! Now I know it's not the original transmission.

What's my best option? Look for another 442 to part out for the transmission? Beef up the T400 I already have? ???

November 14th, 2013, 10:13 AM

64Rocket

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Beef up what you have....

Gene

November 14th, 2013, 10:30 AM

GAOldsman

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The TH400 is a fairly strong transmission and can handle upwards of around 500 ft lbs of torque or more. Unless you plan on racing, I would just rebuild it if needed.