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Search results

  1. M

    Trans swap from a 4L80E to a 6L90E

    Thank you, well put Sir, this is by far the most info I have received. I will follow up on your suggestion and let you know the out come! Thanks again Fellow Traveler
  2. M

    Trans swap from a 4L80E to a 6L90E

    Thanks again, but the 4.8L does not have the horse power I need to tow what I need to tow like I have with the 7.4L. Regards
  3. M

    Trans swap from a 4L80E to a 6L90E

    Thanks for your reply, it's not a question of the engine, it's the electronics, (wiring, computer, trans mount, driveshaft, and yoke), if they can be exchanged or not. Besides, the 2011 has a 4.8L engine, my 1999 has a 7.4L engine with only 63,298 miles, the 6 speed trans will give a boost to...
  4. M

    Trans swap from a 4L80E to a 6L90E

    I have a 99 Chevy 3500 van with a 7.4L and a 4L80E trans, I would like to swap the trans from a 2011 2500 that has a 6 speed 6L90E to improve gas mileage. Has anyone done this before and what do I look out for? I am looking at this 2011 to purchase, (totaled in an accident), so I will have...
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