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#1
10-03-2009, 10:40 AM
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4l60e, 4l65e, 4l70e ?
Okay, I know that the '99-03 have the 4L60E transmission and the '03-06 have the 4L65E and the '07 and up have the 4L70E. What are the main differences between the three ? And what makes the 4L80E so much stronger ?
Bert 192,000 miles and still going strong!
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My Truck: 2000 Silverado,, Z71 5.3 Ext. Cab, Long Bed Original motor + transmission! As of 3/21/14, I'm at 266,300+ miles! My wife's Truck: 2005 F150 Lariat CrewCab (Way nicer them my truck!) 
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#2
10-03-2009, 04:10 PM
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Re: 4l60e, 4l65e, 4l70e ?
the 65 is is a little stronger and updated 60, and the 70 an updated 65 also I think.
As far as the 80's internals don't know, never been in one, but they are physically bigger , as in bigger cases, so to me that means beefier internals. I also think that the tourqe convertor is a little bigger in diameter, that makes it easier to make it more effecient, so there IS less power loss through it.
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10 hours away from John Deere master certified also master certified ASE tech. Exp. in both. Went to school for cars, wound up staying with Deere dealer for a while, so schooling there too. Also couple years exp in GM and some GM training Gave up wrenching for "Greener Pastures" Current job: RN 2010 Silverado Z71 5.3L 65xxx Wife's 2007 Suburban 1500 LTZ 5.3L 102xxx
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#3
10-04-2009, 10:06 PM
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Re: 4l60e, 4l65e, 4l70e ?
your 80's mainly come in the hd series pickups. its mated to the 6.0L engines. Only thing bigger is the allison trans and those come on the DMax's and 8.1L's to my knowledge
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 01 Silverado 2500HD, HID lows and highs, cold air kit, leveling kit, brush guard, dual flowmaster outlaw mufflers, 5% windows.
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