[RedlineRyan]

Hi im a high school student who loves his yj
however i want to do a soa lift
yes yes yes i have done my homework on how involved it is
my friends uncle has done it with his cj and has agreed to do welding with his arc welder
i have a mig but want a nice strong weld
my question is do any of you have dimensions for good homemade perches and shock mounts i would like to design them in inventor then take them to plasmacad so i can use the plasma cam at school to make my own perches and shock mounts for little cost
I have ordered brake lines
got a front drive shaft
shocks
and am going to order a sye and cv shaft
i will be using a drop pitman arm for now until i can buy a high steer knuckle then i will make my own tie rods and drag link
my dad works for a fastner place so i can get dom tubing and hardware for next to nothing
Thanks in advance for you dimensions and/or help much appreciated

[cweed]

I have made my own before, however I also have a lot of equipment in my shop including press brakes and such. One design I used before having all these tools and that is cheap, strong, and easy to do is the use of 2" x .25" square tubing. Taking two pieces of tubing cut to the same length at the curent perches. Tack weld the two together and drill the center between the two using a 2 1/4" hole saw. Split them a part, trim the ends to 22 degree angles and weld to the axle. They look good and are really strong.

[RedlineRyan]

thank you for your help
do i even need to make shock relocaters?

[sitdwnandhngon]

Why is the MIG a weaker weld? There is a lot less cleaning to do with it.

[Joe Dillard]

You'll want the perches to be overall 2.5" wide and the inside radius of the mount close to what the diameter of the axle tube is (for a front YJ's HPD30 - this will be 2.5").

Since the front spring perches on an SOA configuration (for a YJ's HPD30) overlap the vacuum disco housing and the driver side diff housing - you'll want to design them so that they have a built-in offset.

What I mean by that is; if you use a standard square piece of tubing to begin with, or a piece of I-beam, the inner sides will interfear with the disco & center section unless you intend on welding to these housings on the inner sides and do additional trimming to the perch shoulders.

Here's a pic of mine which may explain better than words. In this pic, you are looking at the front passenger side perch looking aft. The distance between the perch shoulders is 1.5" inside to inside and the overhang is ~1/2". They are made from 1/4" material.

Mine are RE's anti-wrap PN 1920 on my front HPD30 diff.

[RedlineRyan]

great suggestions i love it
and mig would be weak because i only own a 110w machine