I think that I can swap in a 07 ls2 from a TBSS into my 07 rcsb 4.8. Will the 4l70 trans work from the TBSS and bolt in or do I need to find a 4l80? Believe that the 4l60 won't live long with 400 hp plus tune at some time.

 

It should swap right in. Maybe a few sensor plugs need changed. Im pretty sure the tbss tranny and yours are the same. I bet your truck weighs less than a tbss also.

 

your 60e is the same as the 70e just has a few harder parts and an extra speed sensor. *your 60e doesnt have that* there is no point in swapping the 70e in honestly. 400rwhp kills them too. save up for a built trans imho.

is the LS2 a 58x? i think the 07+ is a 58x but if its the early 07 i dont think it is. best way to tell is look at the front cover and see if there is a cam sensor in it. all the sensors will be the same.

 

Or if the crank sensor is white it is a 58x

 

good idea on the color. i dunno if they use different ones on the trucks but the 5.3 an my 6.2 are gray

 

Grey, white I'm half color blind it seems or Atleast that's what my wife keeps telling me. Either way if it doesn't have the black sensor then it is a 58 tooth reluctor engine.

 

lol either way buddy good idea for what to look for

 

I thought all LS2s were Gen IV engines and thus had the 58x reluctor wheel?

 

All LS2 are gen IV. The LS7 also is a gen IV, now that would be a awesome swap!

 

No they aren't the gto, and the vette had 24x crank triggers in their early ls2s.