Quote:
Originally Posted by 6600DURAMAX
I'm back on the 6L80e train...…. have a lead on one with a 208 case already attached with a stand alone PSI harness.
Will there need to be any tunnel work done? will it fit under a stock high hump 4x4 tunnel?
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6L has an extra gear in between drive and od. The drop in the 4L is to to large imo. I have a 4L in a heavy work truck. You will probably need a driver drop front axle if planning to keep the 208. Would not use the 208 myself, especially in the slip yoke configuration. Trans will most likely clear with high hump. Girth about the same as 4L, maybe slightly smaller. Maybe a bit longer? Not sure, know the 6l90 is longer. Clearance really depends on motor mounts/crossmember. Using adapter plates at engine mounts can raise engine a bit and have pan clearance problems as well. Have seen some small issues with the Dirty Dingo crossmember. Am using the Tilden/Pacific Fab crossmember myself. Have yet to install. Another member recently had said they were impossible to get a hold of.