Transmission questions

[FlatsFish88]

I have a 2007 LQ4 that had a factory 4L80E behind it. I want to run a th350 and my question is I see everyone talking about the flexplate spacer and longer bolts if you want to run an older trans or the 4L80E. That being said I would assume I do not need them because they are already installed from the factory. I can not seem to find a cut and dry answer, the only thing I have found is if it is a 1999-2000 I do not need it but mine came out of a 2007 2500 van. Any help would be great.

 

[TURNA]

Why do you want a th350 when you have a 4L80E ?

 

[truckdoug]

yeah you need the spacer and a flexplate that'll work with the th350 bolt pattern. you might need the snout adapter too.

 

[gnvair]

The offset is .400" to the front.

 

[565bbchevy]

I have a 2007 LQ4 that had a factory 4L80E behind it

So did you only get the engine and not the 4L80E trans?