4l60e swap
Bell housing should be OK; as far as I know, all '98 and later have the same bellhousing. (Although the Torq bolts changed around 2008).
You might need a different rear housing, but that is trivial to swap.
It is highly suggested you get a different tune for a 3200 stall; else you may get "check engine light" codes and in rare cases the trans might occasionally go into limp mode.
You should get a tune to get the rear O2 sensors disabled, and to accommodate your higher stall. Letting the light indicate a "new" problem can save your engine, your trans and/or your sanity.
You should get a tune to get the rear O2 sensors disabled, and to accommodate your higher stall. Letting the light indicate a "new" problem can save your engine, your trans and/or your sanity.






