The 2LS uses the 7.6" center section with 2.92 gears. If you buy the 2LS you will not be able to use any GM gear sets without buying an 8.6" center section. This is costly.
If you buy the 1LS w/manual transmission you will have the 8.6" rear end w/3.27 gears and will be able to swap in GM gear sets. This is comparatively less costly.
Last edited by 6bangerBOOM; 04-30-2014 at 01:41 PM.
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