i bought a th400 from a guy i work with... he says its a th400 anyways... i trust him but i just want to make sure...

is there a site where i can check my casting numbers...

it has a 4" tailshaft too...

the numbers are:

this one is on a little cowl tag looking thing on the side of the trans...

316
73 CJ 18109

this one is on the tail shaft....

8624486 CFD2

this one is behind where the torque convertor mounts up... to the input shaft if believe...

8628 899
D 29

293

895

anyone know what any of this means...

 

Hard to describe it. The oil pan will be sort of a long rectangle with a side that juts out on the drivers side.

Not many of those codes mean much to me.

D 29 should be April 29
73 CJ 18109 looks like a good number but I can't decode it. My guess would be 1973. CJ I'm not sure of. 18109 is a sequential number.

Most trannys have the RPO code cast in them starting with a M. Usually larger letters and hard to miss.

Try looking for the VIN number. The VIN on a TH400 is stamped on a machined surface just above the pan on the drivers side. This can tell you what car it was originally in when it came from the factory but I think the numbers on the tag are all you're going to find.

Most of those other numbers are likely casting numbers, date casting codes and assembly date codes.

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and check out the race car

87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
461 Big Block installed and ready for the 2001 racing season

Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley