The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 2001-2002 Allison vs 4L80E in a K2500

chewychevy67 · 09-14-2018, 11:25 PM

I have never seen an Alison behind a 6.0L. I have one behind my 8.1L in my 2001 Silverado and I love it for towing. Truck has 200 000 kilometres on it now and still works fine. Not sure how many miles that is. . I have never had a 4l80 so I can't compare but those I hear are pretty good transmissions as well.

09-14-2018, 11:25 PM	#2
chewychevy67 Registered User Join Date: Jan 2010 Location: Here Posts: 5,427	Re: 2001-2002 Allison vs 4L80E in a K2500 I have never seen an Alison behind a 6.0L. I have one behind my 8.1L in my 2001 Silverado and I love it for towing. Truck has 200 000 kilometres on it now and still works fine. Not sure how many miles that is. . I have never had a 4l80 so I can't compare but those I hear are pretty good transmissions as well.