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Old 02-24-2017, 11:17 AM   #201
SCOTI
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Re: No Limit Trailing Arm Rear Suspension

Ttt . . ......
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Building a small, high rpm engine
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Cubic inches is like Indiana Jones with a cheap pistol....
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Old 02-24-2017, 01:18 PM   #202
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Re: No Limit Trailing Arm Rear Suspension

the single shear mounting was done for a couple of reasons. 1. we wanted the bearing centerline to be on the motion line. 2. Ease of installation. It takes about 80,000 lb load to shear a 5/8" grade 8 bolt. With the support sleeve the rate goes up. So, with an average of 750 lbs per side, it would take a 10G hit to hurt the bolt. Honestly, if you somehow create a 10G load impact while driving a C10, you have a LOT bigger problems that any suspension mount.
As to mounting angle, at ride height it is close to 15*. this lessens the spring and shock rate by appx 7%. So, a 250 lb spring becomes 232.5 lb/in. Hmm, x 3 1/2" of static compression = 813 lbs load rate. Compared with 650 lbs of sprung weight per side, x 125% ratio on the trailing arm = 812.5 lbs static load. That's how we do it. Math baby!
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Old 02-27-2017, 10:59 AM   #203
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Re: No Limit Trailing Arm Rear Suspension

Thank you sir.
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Building a small, high rpm engine
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like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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Old 02-28-2017, 03:13 PM   #204
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Re: No Limit Trailing Arm Rear Suspension

Rob, I recently purchased this kit as well as your C-Notch KIT. First let me say they are very nice pieces! I'm having one issue, Basically my truck was a leaf spring frame. What reference points should I use for the C-Notch and shock mounts? The leaf spring frame does not have the bump stop rivets or some of the other rivets you list to use as reference points. I'm thinking if you can give me a measurement from the rear of the frame rail to the center of the shock mount, or the axle tube center line to the center of the shock mount that would be enough to get me started.
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Old 02-28-2017, 03:25 PM   #205
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Re: No Limit Trailing Arm Rear Suspension

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Rob, I recently purchased this kit as well as your C-Notch KIT. First let me say they are very nice pieces! I'm having one issue, Basically my truck was a leaf spring frame. What reference points should I use for the C-Notch and shock mounts? The leaf spring frame does not have the bump stop rivets or some of the other rivets you list to use as reference points. I'm thinking if you can give me a measurement from the rear of the frame rail to the center of the shock mount, or the axle tube center line to the center of the shock mount that would be enough to get me started.
I wondered about this. I had a swb leaf frame & a coil frame in my possession once upon a time & couldn't remember the bump stops being the same for both. Reference numbers from the frame rail ends & the other way (from the T/A x-member) should help w/accuracy.
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Building a small, high rpm engine
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like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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Old 02-28-2017, 05:10 PM   #206
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Re: No Limit Trailing Arm Rear Suspension

Aren't there alignment holes in all frames from the factory? If so those could be used. For the notches though, I think it might be best to just see where your axle hits the frame and use that point as a reference.
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Old 03-02-2017, 12:51 PM   #207
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Re: No Limit Trailing Arm Rear Suspension

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Originally Posted by legends View Post
Rob, I recently purchased this kit as well as your C-Notch KIT. First let me say they are very nice pieces! I'm having one issue, Basically my truck was a leaf spring frame. What reference points should I use for the C-Notch and shock mounts? The leaf spring frame does not have the bump stop rivets or some of the other rivets you list to use as reference points. I'm thinking if you can give me a measurement from the rear of the frame rail to the center of the shock mount, or the axle tube center line to the center of the shock mount that would be enough to get me started.
Interested in this as well. I read through the whole thread and I'm surprised to see no other mention of using this kit to convert from leafs to trailing arms.

Obviously the spring perches will need to be cut off and re-welded, but I have a dumb question... Does my GM 12 bolt rear need to be trailing arm specific (ie: Panhard bar mount)? I believe the rear is out of a 73-87. Truck is a 72 with a shortened frame (SWB conversion) which will no doubt make things interesting .
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Old 03-02-2017, 02:42 PM   #208
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Re: No Limit Trailing Arm Rear Suspension

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Interested in this as well. I read through the whole thread and I'm surprised to see no other mention of using this kit to convert from leafs to trailing arms.

Obviously the spring perches will need to be cut off and re-welded, but I have a dumb question... Does my GM 12 bolt rear need to be trailing arm specific (ie: Panhard bar mount)? I believe the rear is out of a 73-87. Truck is a 72 with a shortened frame (SWB conversion) which will no doubt make things interesting .
OE set-ups have short bars w/the PHB mount on the housing. The better 'long' aftermarket set-ups like this one move the mount to the Pass side truck arm @ the back.
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Building a small, high rpm engine
with the perfect bore, stroke and rod ratio is very impressive...
like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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Old 03-02-2017, 04:32 PM   #209
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Re: No Limit Trailing Arm Rear Suspension

Just a quick update, Rob provided me with several drawings which provided all the necessary measurements I need to install the C-notch and Trailing arm kit. I hope to continue the installation this weekend.
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Old 03-03-2017, 09:46 AM   #210
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Re: No Limit Trailing Arm Rear Suspension

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OE set-ups have short bars w/the PHB mount on the housing. The better 'long' aftermarket set-ups like this one move the mount to the Pass side truck arm @ the back.
Thanks. It seems like now the decision is between this setup and going 4 link... Really only looking for good ride quality, decent hole shot (though my truck is no longer primarily about going fast in a straight line), and to lower it another 2" or so (total of about 4" of drop).

What would you suggest? Im shying away from the OE style trailing arms (ECE) due to the panhard bar issue. The driverside leaf shackles are bound and only articulate about 1". I'm even considering just replacing bushings, etc and adding some drop shackles and caltracs.

I have access to a full metal shop though I wouldnt trust my own welds on the dragstrip .. could tack things in place and have a guy with a cert finish up for me.
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Old 03-03-2017, 12:28 PM   #211
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Re: No Limit Trailing Arm Rear Suspension

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Originally Posted by chevy72blu View Post
Thanks. It seems like now the decision is between this setup and going 4 link... Really only looking for good ride quality, decent hole shot (though my truck is no longer primarily about going fast in a straight line), and to lower it another 2" or so (total of about 4" of drop).

What would you suggest? Im shying away from the OE style trailing arms (ECE) due to the panhard bar issue. The driverside leaf shackles are bound and only articulate about 1". I'm even considering just replacing bushings, etc and adding some drop shackles and caltracs.

I have access to a full metal shop though I wouldnt trust my own welds on the dragstrip .. could tack things in place and have a guy with a cert finish up for me.
If you're swapping from leafs to one of these 2 choices (4-bar or T/A), it's a wash if using an aftermarket kit (since they're within a couple hundred bucks of each other). If you're trying to get a better ride on a leaf spring suspended 63-72 & have a small budget, a used T/A set-up can be done fairly cheaply & provide very good results.
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Building a small, high rpm engine
with the perfect bore, stroke and rod ratio is very impressive...
like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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Old 03-04-2017, 03:55 PM   #212
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Re: No Limit Trailing Arm Rear Suspension

Does anyone have any pictures of the No Limit C notch in place with the No limit coil over shock mount in place. Wondering how close the front of the notch plate is to the shock mount?
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Old 03-10-2017, 08:44 AM   #213
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Re: No Limit Trailing Arm Rear Suspension

They are pretty close on both sides but installed without issue.
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Old 03-18-2017, 02:24 PM   #214
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Re: No Limit Trailing Arm Rear Suspension

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Hey SMKN TA95,

Would you be willing to post where you had these made or information about them. I will we willing to buy two of these for my future build.
I think there are a few people that would be interested in these. Let us know if there are any specs or information out there for these bushings/spacers.
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