Originally Posted by
sleveritt
The VX is back at the shop right now, but this guy has been building buggies for over 20 years now, so he gets first crack at fixing the problem (besides I found some math errors and double charges, so I've got some cushion money factored in). I had mentioned the hydraulic steering before because the steering box had such a small pitman arm, not enough on the turning radius. Longer arms would run into other components.
Rockkrawler makes a hydraulic unit that looked pretty good and cheaper than PSC setups. I will keep all these comments in my wallet for the next time I go out to visit the monster!
Sam
OK, without extra pics then... I am glad the VX is back at the shop. Please just take note of everything I have to say before you discard it. I am trying to help you as delicately as I can because I am naturally over the top. I know you are excited to be so far along in this build but I also know you don't have much experience in this stuff. I seriously doubt your builder has been building rock buggies for over 20 years unless his name is Soni Honegger. Perhaps instead, builder guy has been poorly wrenching on 4x4s for 20 years which supports why very apparent shortcuts have been built into your VX! This means his name is not Soni Honegger! 
I am trying to inform you that you have a poorly engineered and dangerous VX on your hands. Heed the warning signs you have already seen and ask yourself if they are appropriate for someone with so much professional experience:
"First thing, the pin that connects the transfer case lever to the shaft fell out literally in my drive way.
Second, the transmission was way overfilled and was shifting erractically not to mention dripping everywhere.
Third, the fuel gauge was wired backwards. There were other minor things that needed touching up,
but the main reason had to do with the HORRIBLE steering. Truly, I could barely keep it in my lane up to ~40mph, above that, I needed some extra room to allow for lane wandering. I couldn't find any play in the system, so probably extreme bump steer."
I simply ask that you ask your builder why (with all his experience) he has made decisions that work against your overall goal. With all the evidence of poor engineering I have seen I think you should approach him with a barrage of questions to protect yourself from being scammed/taken advantage of.
VXer's PLEASE, for selveritt's sake, back me up or tell him where I am wrong:
1) The stock lower rear links on the VX are known to be weak when controlling something as small as a 33" tire offroad. You have much more tire and therefore leverage than that here... Your links have been cut, perhaps sleeved (let's hope at least), and then welded together. Bottom line, they are weak, sloppy, not enough, and could be dangerous for you and your family.
2) The rear track bar. We can't see from the pics, has that track bar been lengthened or lowered, and if so, how was it done? You may have 6"-9" of lift on your VX and as such if the track bar was not lengthened or lowered, the driver side tire should be sticking out 1"+ more than the passenger tire. Notice the track bar is tied to the driver side frame rail... I'll get back to this.
3) The upper rear suspenion link. How was this one extended? Let's hope it was cut in the middle and then sleeved throughtout it's length at least. It does not see the abuse the lower arms do but it should still be modified correctly or, ideally, replaced.
4) Based off a pic I saw of beefy links sitting on the floor I am thinking builder guy assembled a 3-link in the front with a track bar, resembling the rear suspension. Since there is only one pic of the arms installed, I have to say, they are very short and at an extreme angle if they are indeed shown at ride height. If that is the case, it will always handle and ride like crap and is dangerous! When drooping (like during even a mild jump), the axle will move back so far you run the risk of breakage and a harsh absorption. When flexing, you will see EXTREME axle steer where the drooping side will move backward and the compressing side will move forward causing the VX to turn and steering input may not compensate, especially with the front locker engaged!
5) Did builder guy install cross-over steering? If he did not then your front track bar is installed backward!!!!! Look at it, the track bar needs to be INLINE with the drag link! If it is not then as the suspension droops the distance between the axle mounted end of the track bar and the passenger steering knuckle lessens... what this means is for every bump you hit the axle is shoved to the left and your steering wheel to the right!
This is what your front end should look like:
(Red is the track bar - Yellow is the Drag link)
6) Because of the short wheelbase of a VX, your new high center of gravity, your steep front control arms, the opposing draglink and track arm scenario in conjunction with the opposing rear track arm at an increased angle, when you hit a nice size pot hole or bump at speed the VX will scissor dangerously. The front axle will dodge to the left, your steering wheel will turn to the right and your rear axle will dodge to the right soon after, opposite of the front axle.
7) Spring rates? If he is a Jeep guy, I imagine he probably used Grand Cherokee springs... those would be better than TJ or Cherokee springs but may not be stiff enough...
8) What became of your sway bars? Please don't tell me all these problems were created and no sway bars were planned...
9) I would recommend stainless brakelines, adjustable proportioning valve and Hydroboost with this setup. Plus you seem to have no parking brake anymore so consider a Line-loc as well while you are diving into it.
10) The front drive shaft looks to be at a pretty steep angle as well. Consider a CV-style shaft and make sure the slip-spline depth is adequate.
I am merely trying to help you create the greatest and safest VX you can have, Sam. I hate so be the one to tell you your builder has A LOT more research and work to do... but I definitely see that as the case. 
I wish you luck...
Sent from my "two hands on a keyboard"
Not saying the other stuff is junk by any means.
Super VXer
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