The Official Tummy Tuck FAQ Thread
- Thread starter Chris
- Start date
Ask @David Kishpaugh, but I think it relates to the stress caused on steering components during turning when an auto locker unlocks vs a selectable which does not. I’m getting this information from him in another post in another thread.
An auto locker only unlocks if there is enough difference in wheel speed to overcome the spring force pushing the dogs together. Part of what I think people prefer the auto locker up front boils down to a few things. 1: it has some inherent slop built in and that decreases the amount of bind between the two axles. 2 it is simpler, always on and has no wires or hoses to worry about. 3 Listen to John Currie himself
This video talks about his setup front/rear - but it highlights why to go with a selectable rear, not an auto locking front.
My understanding is also that the rear pushes more than the front when locked, increasing turning radius, but that was not @David Kishpaugh reasoning for an auto locker up front, which I believe was Yukon IIRC. I certainly remember that he said he NEVER would install a selectable locker up front unless the rig had 37’s or larger. Take it up w him
Remind me to let you drive some circles with my separate switches at the trailhead tomorrow.
same. i was planning on doing front selectable, rear LSD. I just want to know if i'm in the wrong.
I'm happy with front/rear selectable lockers - the only thing I plan to change is to make them independent (since the rubicon allows either rear or front+rear on the switch). Though I am always curious what people recommend and why.
If I were adding lockers, I would want either both ends selectable or an auto front/selectable rear.
I have a lunchbox up front. Hindsight I would have put a selectable in the Dana 44 and left the Dana 30 open. With a locker in the Dana 44 you don't really create any weak spots and can push up over obstacles. With a locker in the Dana 30 your u-joints are really worked almost twice as much all the time you are in 4wd and you put allot of stress on the steering in general. I know the auto locker sounds great up front and for really difficult stuff I'm sure it is but there is a cost having it on all the time no matter how well behaved it is and for me it has become a headache. I'd swap to a rear selectable and open front in a heartbeat if it wasn't so expensive.
This is good info, i'll have to think on it more. Its not happening anytime soon. I already have the factory lsd in the rear so i was thinking about selectable up front at the same time i have the gears done. Maybe it would be better to just have the trakloc swaped for a selectable and call it good at that. I don't do "really" difficult stuff.
MARC CROMER
Member
Sorry I was hijacking this thread (not a regular forum user) with my build questions. I will take the non-TT elsewhere.
Thread derailers are welcome here, we even have at least one master and apprentice on board.
Ive had a savvy UAM on backorder for about 3 or 4 weeks. I was curious if there is a more compact muffler that people are running with success when combined with the savvy system?
My current stock exhaust is just about rusted through so i figured now would be a good time to put something else in. Im more worried about compact size, not neccessarily sound but if i had a choice quieter is better.
My current stock exhaust is just about rusted through so i figured now would be a good time to put something else in. Im more worried about compact size, not neccessarily sound but if i had a choice quieter is better.