GM Inside News Forum - View Single Post - 8.1L & 4L80E/4-L85E Transmission

doh · 05-06-2004, 09:51 AM

? The 4L80e verses the Allison. I would jump on the Allison hands down. If the shifting is that big of a concern then just drive with the tow\haul mode on at those speeds, or opt for a different axle ratio or tire size.

05-06-2004, 09:51 AM	#5 (permalink)
doh 6.2 Liter LS9 Supercharged V8 Join Date: Sep 2003 Location: N.W.Ontario Posts: 5,559	? The 4L80e verses the Allison. I would jump on the Allison hands down. If the shifting is that big of a concern then just drive with the tow\haul mode on at those speeds, or opt for a different axle ratio or tire size.