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Ask Smithy Xtra lost gears on CT Commodore

The gearbox in my 1998 VT Commodore lost fourth and reverse gears, and now the one I have just put in has done the same. Do you know why?

A possible cause is a broken spline in the reaction shell, but you need to consult an auto trans specialist.

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Complete guide to Holden Commodore 1998
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