Question on pinion yoke

[Chuck 706]

I'm about to replace my original 3:08 open rear gears with a new 3:40 posi from Moser (BigGearHead). My questions are what pinion yoke do I need to replace my original one and that will mate to the "3R Rear u-joint" that came on my drive shaft from Keisler with my TKO-500 kit? And what speedometer gear do you think I should use? My invoice shows that I have a 16T TKO speedometer gear. And where can I find a new driven gear? I'm running 285/40ZR17 -25.9" tires in the rear. My speedometer currently is around 5mph fast.

Thanks for any help/advice you can give me.

BTW I can honestly recommend doing business with BGH (Freddie).

[Orange71]

Originally Posted by Chuck 706

I'm about to replace my original 3:08 open rear gears with a new 3:40 posi from Moser (BigGearHead). My questions are what pinion yoke do I need to replace my original one and that will mate to the "3R Rear u-joint" that came on my drive shaft from Keisler with my TKO-500 kit? And what speedometer gear do you think I should use? My invoice shows that I have a 16T TKO speedometer gear. And where can I find a new driven gear? I'm running 285/40ZR17 -25.9" tires in the rear. My speedometer currently is around 5mph fast.

Thanks for any help/advice you can give me.

BTW I can honestly recommend doing business with BGH (Freddie).

I believe pinion yoke changed from accepting the 1310 u-joint to the 3R u-joint in '76 so the one you have should work.

[Chuck 706]

Originally Posted by Orange71

I believe pinion yoke changed from accepting the 1310 u-joint to the 3R u-joint in '76 so the one you have should work.

Thanks

[big gear head]

Yea, the '76 and up yoke will work. You can use one from a truck 8.5 if you can't find one off of a car. It's the same yoke. Don't use one from '99 or later. They are a little different.