alright I am going to be runnin a bag on bars set up the slam re7s will be mounted on the top bars I will have alot of suspension travel so I gotta know what to do to keep a decent pinion angle throughout the travel and tell me what I should and should not do

The top non adjustable bars are 23" bolt hole to bolt hole
The bottom adjustable bars can be adjusted from 23"-25" or so

What should I do to keep my pinion angle correct throughout suspension travel? I know I have to keep my bars in the same range of motion with one another like paralel. I just am trying to figure out which way my axle is going to turn when it goes up and down if at all.

haha I dont know what my major malfunction with 4 links is but I am sorta a perfectionist lately. so help me out doods.

this is my idea

http://img409.imageshack.us/img409/4493/frameidea2vz3.jpg

lol I made another post about this and some of it made sense but I couldnt find it to add on.

thats exactly how mine is set up..I have 0 pinion angle change, if you do it right it wont change at all...two things you should do are make the bars parallel to each other and make sure the bars all have the same mounting points

Technically you want the uppers angled down a little, but for simplicity sake its easier to say just make em parallel.

When looking from the side in a 2D view, you want the bars to ideally appear the same length, so to accomplish this, the uppers will need to be physically longer as they are triangulated.

It is pretty tough to mess up if you know the basics.

It is perfectly doable to have a working suspension that does not meet these parameters, but the further away you get, the worse it will be.

Because of the way I did my frame, my uppers are much shorter then my lowers, but I still get very minimal pinion change throughout useable travel. After like 10" of lift it starts to get stupid but I'll never drive that high anyways. If you can keep your pinion angle within 3 degrees of change throughout regular travel (say layed out to 8" of lift), I'd say you want have too many issues. You really have to **** up a 4 link to make it not work on a mini. Just stick to the basics and stay as close as you can and you'll be fine.

Go on SSM and do a search for BioMax's 4 Link Article.

That looks like it will work fine. THe only thing I notice is the length of your bars. You will have to build new lower mounts for you lower bars. If you hook them up to the factory hangers you axle will be to far forward.

Link to the BioMax 4 link Article. Its got a lot of info in it.


http://www2.streetsourcemag.com/Forum/topic.aspx?whichpage=1&pagesize=50015&forum_id=16&topic_id=85853

Thanks guys!