I've noticed some less-than-stellar shift quality out of mine also.hoping a tune can remedy some of that. I know it's meant to be heavy duty, but it should be better than it is.I'm towing my first big load this weekend (my K5 and a quad on a car trailer = 10,000lbs), so I'm anxious to see how the Tow Haul mode works.mostly desert driving, but a few nice grades to test her out. ACE 6L80 Performance Transmission Build. Description; Reviews (0). Camaro Deep pan (6L80 only) and widemouth filter; Updated.
Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.
“This car must be driven every moment. steering is exceptionally tight, will not center its self and all adjustments are within factory specs. I'm unable to relax for one second when driving this care. It takes all of my attention. Worst driving GM I”
Dale K., OR(2008 Chevrolet TrailBlazer LT 4.2-L 6 Cyl)6L80/6L90 | |
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A Hydra-Matic 6L80 transmission at the Ypsilanti Automotive Heritage Museum | |
Overview | |
Manufacturer | General Motors |
Production | 2005– |
Body and chassis | |
Class | 6-speed longitudinalautomatic transmission |
Chronology | |
Predecessor | 4L60-E/4L65-E 4L80-E/4L85-E |
Successor | 8L90 |
The 6L80 (and similar 6L90) is a six-speed automatic transmission built by General Motors at its Willow Run Transmission plant in Ypsilanti, MI. It was introduced in late 2005, and is very similar in design to the smaller 6L45/6L50, produced at GM Powertrain in Strasbourg, France. It features clutch to clutch shifting, eliminating the one-way clutches used on older transmission designs. In February 2006 GM announced that it would invest $500 million to expand the Toledo Transmission plant in Toledo, Ohio to produce the 6L80 in 2008.
Gear ratios:
1 | 2 | 3 | 4 | 5 | 6 | R |
---|---|---|---|---|---|---|
4.027 | 2.364 | 1.532 | 1.152 | 0.852 | 0.667 | 3.064 |
Applications:[1]
Cadillac PDF info on 6L80-E Transmission: