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Old 09-30-2018, 11:52 AM   #1
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2018 30DS CHF quick questions - clarification

Hello all! I have done a lot of research on this topic, read a ton of posts here and elsewhere, but still, require a little clarification. (Read: Please don't ask me to use the search feature.)

Prior to taking delivery of the new unit, I had sumo springs installed on all four corners. This definitely helped with body roll.

I have accomplished the front CHF, other than a clunking noise I get when going over a low curb (for example) I have had no issues. Not sure if I see marked improvement, but don't see enough negatives to reverse it.

On my last trip, we still got a lot of push / pull from passing semis. I detest that, and I am hoping the chf on the rear will help further eliminate that effect. Honestly, it seemed worse than prior to doing the chf on the front. Makes me wonder if I should just reverse that?

Feel free to also comment your thoughts on that question.

Anyway, back to the original purpose of the post. Last time I was under the coach to do the rear chf, with a buddy who is also a heavy diesel mechanic, we noticed that the rear is a two bolt set up with what I guess is the "z-bracket" I have seen referred to. One bolt is able to be removed, the other appears to be affixed to the bracket. Is that indeed the case?

If so, it doesn't appear it can be flipped on the same side and line up correctly. So the question is, is the z-bracket and bolt assembly meant to be flipped, but also swapped sides? In other words, the driver's side goes to passenger, and passenger to driver, while also flipping, or inverting?

Do I have this right? I have seen referenced "reversing" the z-bracket, I am assuming the reversing might mean swapping sides.

Thanks for any clarification and helping get me on the right track. My goal would be to knock this out this afternoon.
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Old 10-04-2018, 08:43 PM   #2
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All of these folks who have performed the CHF and not a single response? Is it the way I worded the post? 1 week and 100 views and not a reply? Really looking to this forum for assistance.
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Old 10-05-2018, 02:49 AM   #3
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All of these folks who have performed the CHF and not a single response? Is it the way I worded the post? 1 week and 100 views and not a reply? Really looking to this forum for assistance.
I just got back from one last trip before winterizing.

I had my CHF done by a local Truck tire shop. These are my before pictures of the Z-Bracket. As you can see the Z-Bracket can be flipped on the same side. I do not have after Pics.
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I installed a Blue Ox True Center steering stabilizer to help with wind and passing semis. I went with the True Center because it can be recentered with a push of button. I had it installed in April 2017, a week after I took delivery.

It has worked well in the last 6,500 miles. I have driven 65 mph on a rural two lane with semis passing in the opposite direction. My windshield wipers rattled from the passing wind but the FR3 did not sway.

I had the CHF done in June 2017 and can say it made a difference. It can always be undone if you don't like it.
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Old 10-05-2018, 05:45 AM   #4
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I know you don’t want to do search but if you go to irv forum there is a thread there that will answer any question you have it will take about a week to read it in entirety. On the push I had same issue the best thing I did was get a front wheel alignment from a heavy duty truck repair after that I could drive one handed and 65 MPH with out an issue from passing trucks. The wheel alignment was the most positive thing I did on my previous class A MH.
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Old 10-05-2018, 07:23 AM   #5
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I did the chf on a friends unit along with sumo springs. The z brackets will need to be taken off and flipped around-they will stay on the same side.
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Old 10-06-2018, 09:17 AM   #6
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I guess I will sound like a dummy---what is a CHF?
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Old 10-06-2018, 10:09 AM   #7
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Bootsthecat

Not a dumb question I did not know either until I read another thread. abbreviation for Cheap Handling Fix for FR3. I haven't done it to my '17 32DS I really don't have any issues with handling so far, only have 3000 miles so not sure if down the road it might make a difference. I am putting sumo springs on front and rear along with sway bars just for my peace of mind.
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Old 10-07-2018, 07:53 AM   #8
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On my 32' Winnebago MH did the following on this order. Rear CHF, front Saf T Steer, Front end alignment. That's it, and the rig is very stable. No need IMHO to do the front CHF.
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Old 05-26-2019, 04:17 PM   #9
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Quote:
Originally Posted by GABulldawg View Post
Hello all! I have done a lot of research on this topic, read a ton of posts here and elsewhere, but still, require a little clarification. (Read: Please don't ask me to use the search feature.)



Prior to taking delivery of the new unit, I had sumo springs installed on all four corners. This definitely helped with body roll.



I have accomplished the front CHF, other than a clunking noise I get when going over a low curb (for example) I have had no issues. Not sure if I see marked improvement, but don't see enough negatives to reverse it.



On my last trip, we still got a lot of push / pull from passing semis. I detest that, and I am hoping the chf on the rear will help further eliminate that effect. Honestly, it seemed worse than prior to doing the chf on the front. Makes me wonder if I should just reverse that?



Feel free to also comment your thoughts on that question.



Anyway, back to the original purpose of the post. Last time I was under the coach to do the rear chf, with a buddy who is also a heavy diesel mechanic, we noticed that the rear is a two bolt set up with what I guess is the "z-bracket" I have seen referred to. One bolt is able to be removed, the other appears to be affixed to the bracket. Is that indeed the case?



If so, it doesn't appear it can be flipped on the same side and line up correctly. So the question is, is the z-bracket and bolt assembly meant to be flipped, but also swapped sides? In other words, the driver's side goes to passenger, and passenger to driver, while also flipping, or inverting?



Do I have this right? I have seen referenced "reversing" the z-bracket, I am assuming the reversing might mean swapping sides.



Thanks for any clarification and helping get me on the right track. My goal would be to knock this out this afternoon.

Following to hear if you get this figured out.

We changed our shocks, added a traction bar in the rear, added rear stabilizer, and added steering control. It helped immensely with the semi issue but I think the steering control was the largest improvement. We did not add coil springs nor the CHF. Basically we noticed a big improvement but still not a 100% fix.

We were told not to do the CHF because it stresses the frame but I am at the point of trying that as well.

Shame on FR for not doing these improvements up front. Had I known how dangerous it drove off the showroom floor, I would of made those upgrades upfront instead of a few whit knuckle drives that were eye openers.
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Old 05-27-2019, 03:26 PM   #10
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I did the CHF on mine and I'm pretty happy with how it rides. I still would like to get the alignment done and a steering stabilizer at some point.
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