Finally....Da new rig..

BUILTnotBOT · Jan 12, 2017

My 2 piece front vibrates like a SOB anything past 30mph in 4wd. Rear 2wd, front drive in neutral, with front hubs locked I don't even notice it. It's the angles i'm working with for the flipped 300 to clear my clutch fork on the 4 speed.

I've debated doing the 1350 axle shaft lately as well. But isn't there still vibes with that at speed? It's an axle shaft not a driveshaft...

My front 2 piece is a 14 bolt pinion with the gear cut off and pressed onto the pillow block. Was an easy choice with a diameter of 1-3/4" no problem finding tube or weld yokes.

PORTER · Jan 12, 2017

With 2 peice driveline it's the angles that cause the vibrations. Saying that if you can keep the angles flat as possible you will have less vibration. I ran axle shaft Driveshafts in my last S&N buggy that were kinda crudely built(but incredibly strong) and I was good to about 45mph then the vibes came on pretty bad. Jantz built me an axle shaft driveshaft in my TJ and I had zero vibration all the way to 70, saying that it was built on a lathe etc so tolerances were very tight. The set Richard built me I have no dough will be vibration free, but again not a 2 piece shaft setup. The only downside is that there may be a slim possibility that my front driveshaft may slightly rub the link on the drivers side at full drop. I really wanted to stay away from using a 2 peice in the front of my buggy as I like to keep things simple and less complicated but sometimes you have to depending on room/pinion location/axle width/etc. My guess is Crash won't but he will have to offset engine to drivers side at bare min, if he wants the engine perfectly centered in the chassis a 2 peice will be probably mandatory.

ChrisStewart · Jan 12, 2017

Clark's running a hp in the front with a 2 piece shaft. You could check out his build thread to see how his angles came out. His car hauls ass, with no vibrations that I'm aware of.

Clark · Jan 12, 2017

My drivetrain is perfectly centered, i'm running a two peice shaft. My angles are ok, not perfect, i put it where it fit. I have had it up to near 100mph with no vibrations. Shafts were built by Drivelinetech, still holding up.

I couldn't run a 1 peice, it would have hit my lower link before getting full droop when flexing out, and was kissing my starter bolt at full bump.

crash2 · Jan 12, 2017

Thanks for the info/pics clark. Does the pillow block mount on the front x-support of the belly pan?

Clark · Jan 12, 2017

its mounted to the front edge of the skid, and tied into the upper link mount, straight below the carrier bearing. best i've got.

crash2 · Jan 12, 2017

Thanks for the info clark :awesomework:

What did that setup run ya?

Also is your oil pan skid hard mounted?

Clark · Jan 13, 2017

I can't remember what i paid for the shaft, but it was worth every penny. Oil pan skid is hard mounted to the engine mounts, and to the skid between the links. I have the TM file for the skid, not sure how it would fit with a 4.3 though.

Sorry to clog your thread with pics, hopefully they help.

crash2 · Jan 13, 2017

Not clogging a thing---I can use every piece of advise or help. Most of the time all I need is a small tidbit of info to figure something out :awesomework:

shrek1 · Jan 13, 2017

Driveline Tech also. As fast as you want to go no vibes.

PORTER · Jan 15, 2017

Updates Sucka!

jprcrpr94 · Jan 15, 2017

PORTER said:
Updates Sucka!

There's been plenty of updates. Gotta follow on the book of faces. :fawkdancesmiley::haha:

crash2 · Jan 15, 2017

jprcrpr94 said:
There's been plenty of updates. Gotta follow on the book of faces. :fawkdancesmiley::haha:

I still prefer build thread on forums---updates coming....:awesomework: Being sick has slowed me down the last few days.

crash2 · Jan 15, 2017

My radiator finally showed up..

jprcrpr94 · Jan 15, 2017

crash said:
I still prefer build thread on forums---updates coming....:awesomework: Being sick has slowed me down the last few days.

I agree. There tends to be more detailed info with the pics. And I hear ya on the sick part, it kicked my ass last week!

uke: Hope you feel better

crash2 · Jan 15, 2017

I just realized---they sent me the wrong radiator...

crash2 · Jan 15, 2017

My heater showed up but damn if I didn't realize the vents were separate.. Thats ok those are added to me next batch of parts...

crash2 · Jan 15, 2017

I get the lower part of the cab area started when I got sick with the damn bug...

crash2 · Jan 15, 2017

So I poked along while being sick and got the lower portion of the cab finished up. Its finally starting to show signs of being a real rig,lol.

crash2 · Jan 15, 2017

Next part I spent a few hours and even had the wife come out and help me do some measuring and nailed down some key measurements. So now I have my roof height and door bar height figured out I can keep rolling onward.