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Old 08-26-2022, 05:22 PM   #1
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Roadmaster shock install question

I will be installing my shocks this weekend. The instructions say to install the new top plate on the u bolts and then install the old top plate on top of the new one. Wondering why 2 top plates. The roadmaster top plate is 3/8 steel. Installation videos I see on Utube, no one does this. Even the picture on the roadmaster instruction does not have 2 top plates. I found 1 video from e trailer that they did use both top plates. Any help appreciate it.
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Old 08-26-2022, 05:34 PM   #2
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Cause their shock mount tie plates bend. I had the issue. They had to send me new shock mount tie plates and u-bolts. Had to remove and reinstall and retain my original tie plates on top. Glad to see they changed the installation. The shock mount tie plates wouldn't hold torque. They'd just deform.


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Old 08-26-2022, 05:38 PM   #3
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Here are a couple pics. Their shock mount tie plates are soft metal and deformed under torque. Reusing or installing standard tie plates on top solves the issue.

Sorry, the pictures are upside down. They were correct when attached.


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Old 08-26-2022, 05:38 PM   #4
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Thank you. Now I can order longer U bolts. Darn.
Appreciate the feed back
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Old 08-26-2022, 05:42 PM   #5
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Originally Posted by RipinSC View Post
Thank you. Now I can order longer U bolts. Darn.
Appreciate the feed back
No problem! That was the only issue I had with the kits. Two years later, still no issues. Tech support stepped up and gave me great customer service.


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Old 08-29-2022, 01:04 PM   #6
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I did my installation in January and saw nothing that said to use both plates. I went out to check and sure enough all 4 of the Roadmaster plates were slightly bowed. I removed the nuts and was able to get the old plate mounted on top but could only get the nuts threaded just to the top of the bolt, no excess threads on any of them. I did use red thread locker and torqued them to the recommended 80 foot pounds but I'd be much more comfortable with some thread showing.

The factory U bolts are 3 inches wide by 7 inches long and 1/2 inch thick. I think I need to find some 8 inch ones but nothing available locally. I did look online but the bolts for the 7K axles on etrailer are 7 inches also. I did find some 8 inch ones by googling it but I'm not sure what grade they are or even what grade I would need. Maybe someone can give me a clue as to what I need.

We leave for a 1600 mile round trip next Monday and I really don't think I would have an issue with the 7 inch ones as is but if I could find something quick enough I would change them out.
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Old 08-29-2022, 02:40 PM   #7
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I could not find any local either. Auto parts would have to order them. Beware, you need 3 inch x 7 3/4 min. Trailer u bolts are ordered by axle size. Auto parts when you ask for a 3 inch u bolt it is measured from center line to centerline. So a 1/2 x3 x 8 will actually only be 2 1/2 inside dim.
I ordered mine from Etrailer. I got Morryde instead of the China junk.
They are not cheap either.
Auto parts wanted $12 to $18 each for China U bolts.
Morryde part number is MR66ZR
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Old 08-29-2022, 08:49 PM   #8
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I could not find any local either. Auto parts would have to order them. Beware, you need 3 inch x 7 3/4 min. Trailer u bolts are ordered by axle size. Auto parts when you ask for a 3 inch u bolt it is measured from center line to centerline. So a 1/2 x3 x 8 will actually only be 2 1/2 inside dim.
I ordered mine from Etrailer. I got Morryde instead of the China junk.
They are not cheap either.
Auto parts wanted $12 to $18 each for China U bolts.
Morryde part number is MR66ZR
I was not expecting that kind of a price but after searching for alternatives there wasn't much out there. I ordered 2 sets which are supposed to be here Thursday and which will give me time to get them installed before we leave for Colorado next Monday. I guess the peace of mind I'll have while on the road will justify the price. I am going to call Roadmaster and complain about the bowed plates.
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Old 08-29-2022, 09:53 PM   #9
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I would replace those cheap u-bolts.
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Old 09-04-2022, 08:03 AM   #10
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I had some good service from etrailer. When I ordered the MORryde U bolts it said delivery on Thursday. When I checked the next morning it had updated to delivery on Monday, Labor Day, the day we leave for Colorado. I called and the CS rep upgraded the shipping to 2 day at no extra charge to me. I got them on Thursday and got them installed on Friday. A pretty easy job. The original U bolts were hard to install because they were spread at the top. I tried to bend them in using my vise but it didn't make much difference. The MORryde bolts were perfect. They were perfectly aligned with the holes on the plate. Now I have about a quarter inch of thread showing after torqueing them down. One less thing to worry about on our 1600 mile round trip.
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Old 09-04-2022, 05:03 PM   #11
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I had some good service from etrailer. When I ordered the MORryde U bolts it said delivery on Thursday. When I checked the next morning it had updated to delivery on Monday, Labor Day, the day we leave for Colorado. I called and the CS rep upgraded the shipping to 2 day at no extra charge to me. I got them on Thursday and got them installed on Friday. A pretty easy job. The original U bolts were hard to install because they were spread at the top. I tried to bend them in using my vise but it didn't make much difference. The MORryde bolts were perfect. They were perfectly aligned with the holes on the plate. Now I have about a quarter inch of thread showing after torqueing them down. One less thing to worry about on our 1600 mile round trip.
I had the same experience with Etrailer. They sent them 2 day delivery and I received them last Wednesday. Have always had great results with Etrailer. The Morryde u bolts fit in perfectly. They better for the cost of them. My install went pretty smooth. Hardest part was drilling the the holes for the mounting brackets. Not being young anymore doesnt help laying on your back and drilling up
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Old 09-06-2022, 01:04 PM   #12
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https://www.stengelbros.net/U-Bolts_c_23.html
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