Air ride project

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Air ride project

Postby Huskiedrive361 » Sun Nov 14, 2010 10:37 am

Well, now that Blackie, the N361TL, is in the shop for the winter, I've started on the installation of the Henderickson air ride suspension and late model (1995) Rockwell rear axles. The purpose of this project was to eliminate the walking beam suspension and provide a faster ratio rear axle for better ride and performance. With Thursday being a holiday, I got out the air tools and unbolted the fifth wheel and the entire rear suspension. Then, after backing off the brake chambers and unhooking all the air lines and electrical, I rolled the tandems out of the frame. Here are a few pictures of what I ended up with.
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susp1.jpg
susp3.jpg
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Re: Air ride project

Postby Huskiedrive361 » Sun Nov 14, 2010 10:53 am

Using a needle scaler. I removed what little rust and scale that were on the frame where any brackets had been. When I disassembled the donor cutoff tandems, I saved the frame rails to use as a drilling template. The holes marked with yellow paint are the major suspension mounting holes. By doing some measuring and sliding the template up and down the frame I was able to locate one hole that is the same on both the old suspension drill pattern as well as the new. This will ensure that the new suspension is square on the frame. After a few accurate measurements were taken the template frame was clamped into place for a quick mock-up. I then shot a little yellow paint thru the holes that were marked, marking the truck's frame rail were I would need to drill a new hole. With the frame marked, next will be removing the template and welding up all the old holes to make it look clean again. A quick count showed 35 holes in each rail needing weld. They must be welded from inside and outside so that makes around 140 welds to be done. More to follow as time and money permit! Stan
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susp4.jpg
susp5.jpg
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Re: Air ride project

Postby Huskiedrive361 » Sun Nov 14, 2010 6:32 pm

After about three hours of welding and grinding today, I managed to get the outside of the left frame rail done. Once all the welding is complete, the rail will be smoothed with a little body filler and primed. This will eliminate the pitting where the old suspension brackets were. As for the tandems, here's where they ended up, across the lot from the work bay. Now I just need to turn them and tow them out behind the garage. Stan
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susp7.jpg
susp8.jpg
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Re: Air ride project

Postby quadbox » Sun Nov 14, 2010 7:58 pm

Nice work Stan. Joe D.
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Re: Air ride project

Postby Emery Johnston » Mon Nov 15, 2010 8:40 am

Nice Stan!! That truck would look real good south of the Mason-Dixon!!!!!

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Re: Air ride project

Postby STRETCH » Mon Nov 15, 2010 6:45 pm

Stan,

What are you doing with the old suspension??


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Re: Air ride project

Postby Huskiedrive361 » Tue Nov 16, 2010 12:25 am

It's spoken for at the moment, but I may be using it under the 360. Stan
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Re: Air ride project

Postby Emery Johnston » Tue Nov 16, 2010 10:44 am

Great Stan!! Now you're getting Glen all fired up and he won't sell to me!! How many free lunches have you screwed up this week??
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Re: Air ride project

Postby Huskiedrive361 » Tue Nov 16, 2010 11:36 am

Glen's pretty smart! Stan
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Re: Air ride project

Postby dbaldwinjr » Wed Nov 17, 2010 8:11 pm

Looks good Stan, I too may be entering in on a frame project. I used my tri-axle yesterday and the frame finally gave up between the tandems. Probably sending it out though.
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Re: Air ride project

Postby Brocky » Fri Nov 19, 2010 8:44 pm

Stan

Thanks for the pictures.. I am in the learning process from them in case I have to do the same on my 358.

Thanks
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Re: Air ride project

Postby anthony masone sr » Sat Nov 20, 2010 4:05 pm

thanks for the pictures
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Re: Air ride project

Postby Huskiedrive361 » Sat Dec 11, 2010 6:08 pm

Found some time to be in the shop today. After a couple of hours of spreading on a thin coat of filler to smooth the frame and then sanding it, I managed to get the left frame rail done inside and out. After the sanding, the rail got two coats of PPG self etching primer. Here's a couple of pictures of the results. Hopefully I'll get to the right side tomorrow. Stan
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1211101741.jpg
1211101724.jpg
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Re: Air ride project

Postby oldspwr » Sat Dec 11, 2010 11:37 pm

Looks good Stan!!!
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Re: Air ride project

Postby dbaldwinjr » Sun Dec 12, 2010 11:56 am

Looks great. would you be interested in re-railing my tri-axle? Got the est. back from the frame shop and lets just say I minds well buy RZ's tilt nose. Looks like I have a new winter project.
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Re: Air ride project

Postby Huskiedrive361 » Sun Dec 12, 2010 5:17 pm

Dane - pull the box and slide the rears out, then cut just the outer rail at the back of the cab and replace it. If you don't cut the inner rail and just straighten and de-scale it, you'll have a strong splice and also the old inner rail will be a drill template for all the holes. It'll be good as new. If you want me to do it, give me a call and we can talk about it. Or buy Ritchies truck and quit whining! Stan
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Re: Air ride project

Postby Huskiedrive361 » Sat Dec 18, 2010 3:10 pm

Well, here's a progress report. After finishing the smoothing and primer on the other frame rail, I set up the templates again and got ready to drill a few holes.
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susp4.jpg
1211101741a.jpg
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Re: Air ride project

Postby Huskiedrive361 » Sat Dec 18, 2010 3:17 pm

Here's the best way to drill frame rail! Pictured from left to right are:
1/8" and 1/4" pilot drills, and a 1/2", 5/8" and 3/4" HSS spiral reamer. I was able to drill all the holes, even the 3/4" ones with 1/2" DeWalt rechargeable 18volt drill. The spiral reamers have multiple cutting edges eliminating the binding you get with drill bits. I just work from the 1/8" up to whatever finish size needed. They do a fantastic job and a nice clean hole.
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1215101226.jpg
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Re: Air ride project

Postby Huskiedrive361 » Sat Dec 18, 2010 3:20 pm

After about six hours of drilling the rails are done! The pictures show the new but still dirty crossmembers being trial fit for the first time. Maybe the rears will follow during the holidays if I get a chance. Stan
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1218101345.jpg
1218101344.jpg
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Re: Air ride project

Postby Green Giant2 » Sat Dec 18, 2010 7:05 pm

NICE JOB STAN. WHERE CAN I GET THOSE SPIRAL REAMER, WHO WOULD HAVE THEM. I WILL NEED TO DO THE SAME THING.
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