The Gear Box Transmissions, LLC.
3550 TKO 500 600 > 3550 TKO 500/600 Mainshaft 31 spline FORD
3550 TKO 500/600 Mainshaft 31 spline FORD
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Price: $294.11
Availability: in stock
Prod. Code: TCFP4310

 Mainshaft for a Tremec 3550, TKO , 500-600 transmission. with the  31 spline output. Ford applications. Does not fit the GM application.

This is for the ..68 overdrive 

Genuine OEM Tremec part # TCFP4310.

The Gear Box Transmissions, LLC.

Phone 734-793-0727

* Fax 734-793-0729