It probably has something to do with the bearings and outer axle tube seals. Dodge also recommends 15-30k fluid change intervals on their AAM 10.5 and 11.5 axles.
It was also available in Suburban 2500s, and one of Delphi's test trucks was a Super Duty.

My point is the vast majority of GM forums all say the Quadrasteer system is reliable with very few problems. If failed often you wouldn't see people on the forums recommending them. Reliability is basically a non-issue with the quadrasteer system. You basically should be more concerned about the truck falling apart around the rear axle, then the axle itself.

 

As much as I love computer-controlled engines and what it gives us, I'll take my steering the old-fashioned way - ball bearings, spool valves and hydraulics. I can't imagine what would happen if I decided to maneuver on the highway and I had an electrical issue.

Anyway, I'm out Last-word-itis is taking effect

 

I like you Krewat, and I agree with everything you said.

 

Hydraulic steering systems can fail in interesting ways too
YouTube - ‪ANTITHEFT -STEERING WHEEL VIOLENTLY SHAKES WHEN TOUCHED‬‎

 

Thats not a failing steering system. It's an anti theft device. He says it like 5 times in the video... and in the title

 

Sorry, but that is a failed rotary valve in the power steering system. Someone in the comments even said the same thing happened to them. No anti-theft system would ever use something so inherently dangerous.

 

Looks like a normal case of death wobble in a solid axle!

 

dam thats fricken crazy..

i never seen a power steering system fail like that before...imagine if that happened while driving..

YIKES...

 

Bossman has a suburban w/ it,never a single issue in 160K mi.
Actually got it for his wife,to replace an expedition.She says it is easier to drive, and park.
It definately feels different driving it.

 

Everyone that I've ever talked to that had it loved it and never had any problems with it. I'd take it on any truck if it was available. It wasn't purchased often because it was packaged with a bunch of high end options that were like 5-7K.

I would go out on limb and guess that there have been less problems as a percentage of production with the Quadrasteer than the 6.0 diesel or spark plug blowouts on the mod engines.

If this was a Ford option there is no doubt that it would be regarded as the best thing since bread was sliced around here.

Mike

 

If there were as many in production as the 6.0, or even more-so the Ford modular motors, I'm sure you'd see a lot more people complaining about it.

Not by me

 

spark plug blowout on mod engines is the fault of the person that was too lazy to put the new spark plugs in properly. not fords fault.

i have put hundreds of spark plugs in mod engines, and torqued them properly. i have never had one blow out.
on the other hand, people that put plugs in hand tight, or gorilla grip the plugs in, complain about the crappy design when the plugs blow out because they loosened up, or the threads were ripped out of the head from over tightening.

 

To get even further off-topic, it also has to do with corrosion and how long they are in there....

 

Like I said, I would guess that as a percentage of production that there were less problems with the quadrasteer. I have never heard anyone that actually owned one have a bad thing to say about it. Then again I haven't talked to very many owners.

Even mod engines with plugs installed at the factory popped them out. Even though in the case of the 6.0 and mod plug popping user error had a lot to do with many of the problems, there were still significant factory flaws.

I don't see why quadrasteer wouldn't be reliable. It seems pretty simple to me. Steer axle with an actuator that the computer controls. Fail safes to center.

Mike

 

Plug comes loose and pop goes the spark plug especially if you have detonation issues or forced induction. Just got done checking all 10 plugs on my dads truck to make sure they were tight before his trip in a few weeks. I'm willing to bet the majority of the people who had plugs blow never check them, like my neighbor.