My Willys 3A and 3B Community

3A, 3B, DJ Technical Knowledge Base => "Modifications"-- Technical Questions, Answers, Incites => Topic started by: garage gnome on April 09, 2012, 11:20:03 AM

Title: Coil spring converto in a Flatty
Post by: garage gnome on April 09, 2012, 11:20:03 AM
Hey guys, I wanted to share the latest big jeep build I've done. Last year just before the 4th, I wasted the 2A frame under the Jalopy's. It broke so bad right in the center of the driver's side frame rail. I already repaired it a few times up front and in the rear, but this one took the cake!!!! So I got all mad at it and started to build a new frame.

In May, just before I graduated from high school, I started building it. I took some rough measurements of the old frame and started cutting!

The basic frame. I got this done so I could bring it into school to add fish plates and cap the ends. I know, I'm a weird kid. I built a matching jeep trailer and a custom jeep frame all in the same year! Actually, the ironic thing is, I brought to school using the '53 and the trailer!
(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7250.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7252.jpg)

Front looking to back
(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7253.jpg)

You can see the gang looking on. :)

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7251.jpg)
Title: Re: Coil spring converto in a Flatty
Post by: Gunslinger on April 09, 2012, 06:18:05 PM
I don't know about weird, I'd go with "Creative" or maybe "Motivated" certainly "Skilled".  I hope you got an "A" in the class!!!
Title: Re: Coil spring converto in a Flatty
Post by: Comanche_County on April 09, 2012, 09:44:30 PM
Wish I got an early start like you, heck, I'm filled with gray hair now and I'm still new at this stuff.
Title: Re: Coil spring converto in a Flatty
Post by: garage gnome on April 09, 2012, 10:06:26 PM
Quote
I don't know about weird, I'd go with "Creative" or maybe "Motivated" certainly "Skilled". �I hope you got an "A" in the class!!!

Yes I did! I was the only one.  ;D
Title: Re: Coil spring converto in a Flatty
Post by: Jesse on April 09, 2012, 10:27:40 PM
Well you are at least working on a jeep, most people know what that is. People seriously thought I was high when I explained that I wanted to build a motor-tobaggan in shop class

-Jesse
Title: Re: Coil spring converto in a Flatty
Post by: garage gnome on April 10, 2012, 06:47:40 PM
The fish plates I added at school.

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7270.jpg)

Steering box mount. I know, I'm spoiled with the ps. ::) I made the tubing on the frame water tight, thats why I did it this way instead of just drilling holes through.

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7286.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7288.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7289.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7291.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7296.jpg)

Front bumper made to accept the Warn 8274 winch.

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7307.jpg)
Title: Re: Coil spring converto in a Flatty
Post by: calvinhunt on April 13, 2012, 12:12:26 AM
Amazing!!! Thanks for sharing your project with us.  Please keep the updates coming.
Title: Re: Coil spring converto in a Flatty
Post by: garage gnome on April 23, 2012, 08:38:16 PM
After making some measurements, I found out that the distance between the point where the axle tube is welded to the knuckle is 36" and my frame is 29" wide. The coil springs are 5" in diameter too. Dang it. I had to notch the frame quite a bit to get them to fit properly.

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7315.jpg)

It ended up being 1/2" thick. :shock: So I made up this 3/8" plate to weld in there.

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7316.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7317.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7318.jpg)

and I welded a support on the back.

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7320.jpg)

And then I had to beef it back up some more, so I used some 6" pipe as my coil spring mounts.

(http://i748.photobucket.com/albums/xx125/willyscjmj/DSCN0087.jpg)

and the axle mounts

(http://i748.photobucket.com/albums/xx125/willyscjmj/DSCN0091.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/DSCN0092.jpg)

and I mocked it up on a junk axle. The short axle tube is exactly 5" long and I hit it perfectly! :D

(http://i748.photobucket.com/albums/xx125/willyscjmj/DSCN0089.jpg)
Title: Re: Coil spring converto in a Flatty
Post by: Comanche_County on April 23, 2012, 10:36:05 PM
Lookin good.  What's your plan for bump stops?  
Title: Re: Coil spring converto in a Flatty
Post by: garage gnome on April 24, 2012, 08:30:55 PM
On the rear, I did add some and the front I use the shocks as bump stops. This project was done about 8 months ago.  ;)
Title: Re: Coil spring converto in a Flatty
Post by: Gunslinger on April 24, 2012, 10:07:48 PM
Dude, that is nice!! :)  Can you share some photos of the final project?
Title: Re: Coil spring converto in a Flatty
Post by: garage gnome on April 29, 2012, 08:14:41 AM
Here's a few of it flexing when I just got it drivable after putting the tub back on.

(http://i748.photobucket.com/albums/xx125/willyscjmj/DSC08163.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/DSC08164.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/DSC08166.jpg)

And the finished product:

(http://i748.photobucket.com/albums/xx125/willyscjmj/DSC08847.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7390.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/100_7389.jpg)

Title: Re: Coil spring converto in a Flatty
Post by: garage gnome on April 29, 2012, 08:20:23 AM
Under the hood. I moved the engine forward 2-3" because with the T18, my rear driveshaft was really short. My lower radiator hose just cleared.

(http://i748.photobucket.com/albums/xx125/willyscjmj/DSCN0265.jpg)

(http://i748.photobucket.com/albums/xx125/willyscjmj/6843b86f.jpg)

Also since the build, I changed my front suspension around a lot. It now a pretty reliable rig. No frame flex, my biggest enemy!
Title: Re: Coil spring converto in a Flatty
Post by: Carls_jeep on April 30, 2012, 08:56:05 AM
Nate, that was an interesting article. The coil springs will give it more travel than flat springs could.
Title: Re: Coil spring converto in a Flatty
Post by: Williamsmar on April 30, 2012, 01:22:44 PM
Did you widen it some by wider tires or is the frame you built have a wider footprint.  I was wondering by converting is it top heavy?  Looks graet!!

Thanks williamsmar
Title: Re: Coil spring converto in a Flatty
Post by: garage gnome on April 30, 2012, 07:54:02 PM
Yeah, I learned quickly how much better coils are over leaf springs (and how much smoother of a ride it is).

The frame is the exact same size as the original 2A one. My wheels are off a later CJ, so the offset is different. I'm still running the stock D25 and D41 axles. I probably should have upgraded, but they are just fine. I really don't beat on it.

Actually it is more stable than the leaf springs. There are a couple spots that were a little sketchy before (tipping wise) and now it doesn't even feel like it want to flop. I think it has to do with this setup being softer so the axles will flex taking up the grade of a hill.