Topic: CV for rear drive shaft

[sgtrock]

Would like to know what is involved with putting a CV on the rear drive shaft to fix a vibration on an 84 pickup.  I have been told that the front and rear xfer case output flanges have different bolt patterns and that I would need to either re-drill the existing rear flange or buy one ready to go.  

My question is this:  Is the part of the flange that actually centers the drive shaft the same for the front and rear?

[cruzila]

The boss that locates the driveshaft is a common toyota four wheel drive size. meaning they are all the same. the bolt patterns and stud sizes do vary though.

[BigMike]

I have been told that the front and rear xfer case output flanges have different bolt patterns

You need another front CV flange. Bolts right on, same spline size and count (front output and rear output). We suggest replacing the seal, grease it, and sand out the new flange where the seal runs on it and where the driveline attaches (surface it) before installing it.

My question is this:  Is the part of the flange that actually centers the drive shaft the same for the front and rear?

Yes, the inner bore of the flanges are in a direct relation with centering from front to rear. I would use a 360° turntable and mill and center it in relation to the ID.

BigMike

[90TOYPU]

and remember you're going to have to turn your rear diff. up so the pinion points directly at the t-case output

[sgtrock [OP]]

Thank you all for the info.  I do have the original front and rear drive shafts.  The ones I'm currently running are both Tom Woods shafts.

About the rear pinion angle.  I've shimed it to within 2 or 3 degrees (low) of pointing directly at the rear output shaft.  I am planning to put a track bar with a shackle on the rear axle to control the axle wrap.  This will virtually keep the rear pinion angle the same at all times (Acts of God, mechanical failure, and stupidity excluded).  Will the 2 to 3 degree angle be too much with the track bar or do I need to re-shim the rear for as close to 0 degrees as possible?

Thanks in advance,
sgtrock

[90TOYPU]

I'd say if your trac bar eliminates axle wrap completely shooting for 0 degrees would be ideal. But if you still have a some wrap having the picion pointing down 2 degrees would be ideal........Try running it the way you set it up and see what it does

[sgtrock [OP]]

It still should have "some" wrap.  I plan on using a shackle at the front to allow as much axle movement as possible.  Thanks for the info.

[e_cliff]

the tacomas use a cv that will bolt right up. marlin should have these if not try TAP recycling ( iknow they are asses)  :talking: