input on rear driveshaft needed for the crew cab-need MORE advice

[mrk5]

Working on the process of moving the carrier bearing back and I was questioning my methodology. My original thought was to get the new carrier bearing mount made and measure from there for the driveshaft to be built. But then I got to wondering if it would be better if I took the measurements for where I want the carrier bearing to be, have the driveshaft made, and then make the carrier bearing mount so that I know exactly where it will be.

Just thinking maybe the second option might avoid the possibility of having to make the carrier bearing mount a second time if something gets off in my measurements or the driveshaft manufacturing.

Thoughts?

 

[JoshHefnerX]

Measure 2xs cut once... so to speak.

you're going to have to figure out your angles which are going to kinda dictate your bearing placement.

 

[mrk5]

Yeah, that's what I'm doing. I've figured out the angle of each of the 2 pieces and then where they intersect to figure out where the carrier bearing goes. Which isn't right at the intersection because there is about 7" of slip yoke to account for.

 

[Tnsejed]

You've got alot of angles to deal with. I've never worked with carrier bearing stuff, so this is a spitball. If it was me I'd start at the tranny and see what angle you need to match at the carrier bearing joint. From there you can figure out how far down its gotta be. Then work back from the rear axle, and see what that looks like, and that should tell you how far forward or backward the carrier bearing needs to be to get the rear shaft angle right, or close.

Once you've got it all drawn up from there you can see what compromises, if any need to be made from perfect angle setup. After finding the close to perfect angles you can work from there to get the shaft as high as possible while thinking about how much off-perfect-angle you're willing to sacrifice for the clearance.

That's atleast how I'd probably start. I'd definitely get the carrier bearing mount in first before ordering shafts. you should know what shaft lengths you will need from mock-up before you even weld the bearing mount in.

 

[ktmoutfront]

Bearing first. Maybe just tack the mount in until the shafts show up.