Yoke & U Joint sizes?

[Glennster]

 When I removed my 742 Pig and went to a 489 Pig, the 489 Yoke was about a 1/2'' wider and it looks like the diameter of the caps for it need to be larger. Can anybody tell me the correct size for these? I think the part of the U Joint that fits in the 489 Yoke should be 1.125'' x 3.620''. Is that right?
 
The U Joint that came out of the 742 (on the Yoke side) had a cap that measures 1.075''. The part of the U Joint that fit in the drive shaft is 1.125''.

  If the 489 requires a 1.125'' cap, will I need a different strap to hold it in the Yoke or will the one from the 742 that held a 1.075'' cap be OK?

 Sorry for all the goofy questions.....THANKS for any help I can get!

[heminut]

You will have to get the correct straps for your yoke, the smaller ones won't work. The Carquest I used to work at had strap kits (straps & bolts) available for the different yokes, and I would think that any good parts store should be able to hook you up with the right kit.

[Alaskan_TA]

Conversion U-joints are also available so you do not need to change your driveshaft.

[Glennster]

 The difference between the two yokes is quite small. measuring from center of bolt holes on the two Yoke is as follows:
The 489 is 1.547''
The 742 is 1.502''
A difference of .045''
I double checked the cap size needed for these two Yokes, the 489 needs a 1.125'' cap and the old 742 used a 1.070'' cap. I went to O'Reillys, they could not come up with a strap for the larger cap. BUT, the cap I got bolts up to either one just fine...........

 The cap size difference is .027'', an I going to stretch and stress the strap by using it on the larger cap?

[Alaskan_TA]

You need the larger straps.

Try Cass if you can not source them locally;

http://www.doctordiff.com/