Anyone know where I can get a diagram so I can make sure my axle is in the exact right spot befor I burn in my fourlink? I got he truck with a two link, and I will be ordering a 4 link in the VERY near future and need some measurements and reference points, so I can make absoluelty sure it's right.

 

I am about to embark on this same thing and as far as I know, you can just hook up the drive shaft with the motor and transmission in, and then lower the frame onto the axle, wherever it hits, is where you mark it. Then measure like crazy and makre sure the axle wasn't crooked, and make sure each side of the frame is the correct length.
But I will be notching the frame. I think if you already have it all put together and it is working like it is, then you can measure it right where it is.

 

Yah thats all I did was drop frame to axle cause I knew my notch/frame where perfect then me measured from middle axle hub to opposite side front bed mount on both sides then same thing both sides from middle axle hub to corner of crossmember and frame to make sure everything was square. We did this with the driveline still hooked up.

 

well my dirve line is all hooked up and everything, I just know with the two link, when laid out, it pushes my axle forward. I will maybe try locating the axle with the bed on, that way it keeps my wheel centered most as possible in the wheelwell.

 

Are you notching your frame?

 

the frame is already notched. The truck is already bagged when I got it. But I have to replace the ****ty 2 link with a fourlink, and I have to cut the front bag mounts out, because whoever did the original bag job didn't clearance anything off the frame, so my bag is severely rubbing on balljoint bolts. Rubbing so bad in fact, I wouldn't want to drive it with fear of blowing a bag with my kind of luck. The previous owner says he's been driving it this way for over a year, but I know with my luck, as soon as I drive it out of my neighborhood, the bags in front will blow and the u-joint out back will snap all at the same time.

 

I have seen some people spot-weld the axle to the frame once it is in the right spot. Then you can build the links and not worry about it moving on you. You have to take into consideration the driveshaft angles and pinion angles.

 

yeah, once I get it all measured up and on jackstands, i take a u-bolt and place it upside down and tack ti to the frame, that way the axle can still be rotated slightly if needbe.