โJun-11-2015 06:48 PM
โJun-13-2015 11:08 AM
โJun-12-2015 07:35 PM
โJun-12-2015 07:34 PM
โJun-12-2015 07:29 PM
โJun-12-2015 06:14 PM
โJun-12-2015 02:17 PM
โJun-12-2015 12:48 PM
48ford wrote:
Opinions are like belly buttons......everybody has one. This is mine.:)
Some have problems, some don't
I believe the 2005 Duramax is one of the best used trucks out there.
โJun-12-2015 09:39 AM
ktmrfs wrote:trail-explorer wrote:
Those that have a 5 speed say there's no need for a 6 speed - probably because they haven't towed with a 6 speed. Those with a 6 Speed say they would never want the 5 speed.
The 6 speed also gets you manual shift capabilities, which as far as I'm concerned is a must have item for towing heavy.
06 and newer have the 6 speed Allison, which has manual shift mode, via a button on the shift lever, which works once you drop the lever to "M" mode.
I have an 2015 with the 6 speed, and had a 04.5 with the 5 speed towed for 100K miles with it. Personally, when towing either is fine. 5 speed has manual shift capabilities, just need to use the shift lever, 6 speed just goes to a tap shift.
In 95+% of the time, using tow/haul does fine. In fact, I actually in prefer the 5 speed overdrive lockout vs. the 6 speed tapshift. to drop out of 5th to 4th, just push the tow/haul button and hold it and it drops out of overdrive. Push again and back to overdrive.
No such thing on the 6 speed. you have to move the shift lever from drive down to M and then tap to 5, 4 or whatever.
If your looking for a used duramax, IMHO don't make the 5 or 6 speed a decision changer, either is fine.
6 speed does have a advantage if you do a lot of unloaded highway driving with the extra gear.
โJun-12-2015 09:30 AM
โJun-12-2015 09:22 AM
trail-explorer wrote:
Those that have a 5 speed say there's no need for a 6 speed - probably because they haven't towed with a 6 speed. Those with a 6 Speed say they would never want the 5 speed.
The 6 speed also gets you manual shift capabilities, which as far as I'm concerned is a must have item for towing heavy.
06 and newer have the 6 speed Allison, which has manual shift mode, via a button on the shift lever, which works once you drop the lever to "M" mode.
โJun-12-2015 09:12 AM
trail-explorer wrote:On my '05 I don't miss the 6-speed when towing. 2000 rpms at 62mph in 5th (O/D) works for me.
Those that have a 5 speed say there's no need for a 6 speed - probably because they haven't towed with a 6 speed. Those with a 6 Speed say they would never want the 5 speed.
The 6 speed also gets you manual shift capabilities, which as far as I'm concerned is a must have item for towing heavy.
06 and newer have the 6 speed Allison, which has manual shift mode, via a button on the shift lever, which works once you drop the lever to "M" mode.
โJun-12-2015 07:14 AM
โJun-12-2015 07:02 AM
โJun-12-2015 06:29 AM
โJun-11-2015 09:37 PM