Reply to thread

Message: [QUOTE="Charles, post: 643254, member: 103"] The problem is [i]sustained[/i] torque. The amount of power the ZF can take in a burst with smooth delivery and no shocking is above what any of us will probably ever produce. However, if you load one down, and hold it there for a couple hours they just can't shed the energy. I have never taken one out of a truck I towed heavy with that the input shaft bearing wasn't loose as hell, fluid scorched and unfortunately, often times popping out of 4th and 5th gears under power. The auto is just more capable of sustained torque input in my experience. The ZF is only [i]actually[/i] rated for a max of 650ft/lbs at the crank fwiw... Hence the fact that later versions of the superduty were detuned with the ZF vs the auto option. [/QUOTE]

Verification

Random media

rick-astley_reasonably_small

Trailer

Pfm top

Resampled952011-11-059517-05-5395567

100_7141

0C2D2D89-FB66-4571-8D04-885482A7E9CE

171

250691_166947353368926_100001609875209_423352_3509179_n

449D49D7-F1F3-4D00-959A-19155E78D0B0

2011-05-11_16_49_02

Latest posts

Gauge cluster face plates
- Latest: crash86
- Today at 5:15 PM
6.0 Aftermarket
B
6.4 head gasket job cost
- Latest: bowhunter
- Today at 2:07 PM
6.4 Aftermarket
S
6R140 surging issue
- Latest: Smokin 6.0
- Today at 12:11 AM
6.7 Tech & FAQ
Won’t start
- Latest: psduser1
- Wednesday at 11:33 AM
7.3 Tech & FAQ
GT37 Turbocharger w/10 blade turbine, billet comp.
- Latest: hskfab
- Jun 6, 2025
Engine and Drivetrain

Members online

No members online now.

Total: 316 (members: 0, guests: 316)

Top