Turning Radius

[Dougn]

I just remove the jam nut and screw the stop bolt in until it stops from the bolt shoulder touching threads.

With truck on the lift you can cycle the steering by hand on the axle until it hits both stops. The wheels turn with zero bind at full lock.

This is what I'm going to try/do on my new quartermaster. so much bad info out there..... Do you have the stock steering damper? Does the stock damper really bottom out if you increase the steering angle?

 

[cdsvt]

I can't speak for the Quartermaster, but my '24 Grenadier's turn radius was 100% limited by the travel of the stock steering stabilizer.

 

[DenisM]

That’s dumb. Why would the factory preemptively set the steering stops at a location to anticipate aftermarket wheels, at the cost of letter turning radius.

I think these are simply urban myths passed around

At the Nov 2025 meeting of our local Grenadier owners group, one of those present described his visit to the Hambach plant. He reported that he had raised the issue of the turning circle with senior engineering folk. The response was that the steering limits were specified to ensure that snow chains on standard wheels and tyres would not rub under the front mudguards/fenders.....

 

[TCMColorado]

The pertinent question is if the steering limits are to keep the double cardan joints in the front axles from exceeding the working limit. If as suggested by DenisM the stops were set only to allow for snow chains then reducing the turning circle by adjusting the stops would not be an issue. But this is a big if that increases the potential for damage to the joints as the maximum working angle is approached.

 

[Dougn]

The pertinent question is if the steering limits are to keep the double cardan joints in the front axles from exceeding the working limit. If as suggested by DenisM the stops were set only to allow for snow chains then reducing the turning circle by adjusting the stops would not be an issue. But this is a big if that increases the potential for damage to the joints as the maximum working angle is approached.

Also, making low torque U turns on the street is completely different than applying lots of torque in low range off road

 

[Tenac]

The pertinent question is if the steering limits are to keep the double cardan joints in the front axles from exceeding the working limit. If as suggested by DenisM the stops were set only to allow for snow chains then reducing the turning circle by adjusting the stops would not be an issue. But this is a big if that increases the potential for damage to the joints as the maximum working angle is approached.

I've also seen different trucks with different settings from factory, so not sure oh precise they need to be anyway.

 

[Dokatd]

This is what I'm going to try/do on my new quartermaster. so much bad info out there..... Do you have the stock steering damper? Does the stock damper really bottom out if you increase the steering angle?

The stock damper will ultimately limit you, but it's not the current limit of a stock truck.

 

[TCMColorado]

Also, making low torque U turns on the street is completely different than applying lots of torque in low range off road

Add in locking the front differential and the the stress applied to the u-joints increases even further.

 

[parb]

At the Nov 2025 meeting of our local Grenadier owners group, one of those present described his visit to the Hambach plant. He reported that he had raised the issue of the turning circle with senior engineering folk. The response was that the steering limits were specified to ensure that snow chains on standard wheels and tyres would not rub under the front mudguards/fenders.....

Got to be a really rough day when you need snow chains on all 4 wheels.

 

[Clark Kent]

Got to be a really rough day when you need snow chains on all 4 wheels.

I suspect someone in engineering, or legal, or both is a subscriber to https://darwinawards.com/

If someone can do it, it will be done.

 

[parb]

ya, its one of those "sounds like common sense"... yet so overkill.

 

[Tom109]

Got to be a really rough day when you need snow chains on all 4 wheels.

When I've needed chains I have never put them on one axle.

 

[matt_grenadier]

I have just measured my turning diameter 12.85 meter. If feels huge compared to other cars.

I checked my turning stop bolts when the steering is on full lock, and the axle is not close to touching (see picture below).

That seems to indicate that the steering stops are not the limiting factor. Is it then the steering stabilizer or the steering pump limits itself? Anybody experience? How should i proceed if i want to improve the steering diameter?

Matt

 

[landmannnn]

I have just measured my turning diameter 12.85 meter. If feels huge compared to other cars.

I checked my turning stop bolts when the steering is on full lock, and the axle is not close to touching (see picture below).

That seems to indicate that the steering stops are not the limiting factor. Is it then the steering stabilizer or the steering pump limits itself? Anybody experience? How should i proceed if i want to improve the steering diameter?

Matt
View attachment 7918455

I put a Toughdog adjustable damper on mine. The steering meets the stops now.

 

[cdsvt]

I have just measured my turning diameter 12.85 meter. If feels huge compared to other cars.

I checked my turning stop bolts when the steering is on full lock, and the axle is not close to touching (see picture below).

That seems to indicate that the steering stops are not the limiting factor. Is it then the steering stabilizer or the steering pump limits itself? Anybody experience? How should i proceed if i want to improve the steering diameter?

Matt
View attachment 7918455

The stock steering stabilizer is limiting travel. I went to the Fox ATS, and it is a good improvement.

 

[Dokatd]

I have just measured my turning diameter 12.85 meter. If feels huge compared to other cars.

I checked my turning stop bolts when the steering is on full lock, and the axle is not close to touching (see picture below).

That seems to indicate that the steering stops are not the limiting factor. Is it then the steering stabilizer or the steering pump limits itself? Anybody experience? How should i proceed if i want to improve the steering diameter?

Matt
View attachment 7918455

Put a dab of paint on the stops and go drive around for a bit. You might find out through backing up and moving through parking lots etc you will ultimately make contact.

But yes you are experiencing the same as everyone. I tested it with gear marking compound on my stops.

The issue is you loose power steering at the limits. So you need road force to get to the stops. You may have to add some pressure from the steering wheel to get there fully.

 

[Emil]

The stock steering stabilizer is limiting travel. I went to the Fox ATS, and it is a good improvement.

In the 2026 models, turning radius of both station wagon and pickup are 1m less each approx.. Maybe worth exploring how IA did this?

 

[Tenac]

In the 2026 models, turning radius of both station wagon and pickup are 1m less each approx.. Maybe worth exploring how IA did this?

They turned the stops in two threads from reaching the nut as standard.

 

[cdsvt]

In the 2026 models, turning radius of both station wagon and pickup are 1m less each approx.. Maybe worth exploring how IA did this?

That's a reasonable thing to do.

I already addressed it to my satisfaction with a better steering stabilizer and adjustment to the steering stops.

This isn't rocket science and solid front axles aren't new tech. Some of us have been mucking with this same basic suspension/axle design for decades.

 

[.Jeff]

yeah... it's easy to wander off at a tangent....

Especially if you come at it from the wrong angle.