99 suburban 4L60 replace/rebuild or swap for a 400 trans?

Eloiaj

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Hello All,
I have a 99 GMC Suburban K1500 the trans went out 6years ago .....SO! i bought a new trans 4L60 from "'monster"
( another convo for another forum im sure) but this is the 2nd one from them and it has fail.... my question is do i rebuild this one, try to find another one OR upgrade to a 400?
 


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