Driveshaft Bolt Size Needed

Hey guys, putting my 72 rivi back together and I can't find the driveshaft bolts to save my life. Can anyone point me in the right direction for bolts in a hurry? Thanks everyone!

 

5/16 X 20 X 1 1/2 napa sell a kit with straps and bolts

 

mine doesn't have straps, it just has 4 bolts. will those bolts with the strap kit work? if so, awesome!

 

If you have the four bolt pinion yoke they are 7/16ths. by about 1 1/4" long with a 5/8ths. head, course thread. Use grade 8 bots. They are kinda special since the heads are smaller & a larger head you may not be able to get a socket on.

 

FWIW Tom, thats referred to as a "Companion Flange". Bill

 

I did it that way Bill because he probably doesn't know what a "companion flange" is which would post more questions.

 

Gotcha... ws

 

real quick, where's the best place to order or buy these bolts?

 

Should be as close as your local hardware store.

 

Should be grade 8 no? Use a dab of never seize on them too. ws

 

Beware. most of the corner hardware stores including (LINK) == Fastenal crap Chinese grade 8... for those bolts wreaking yard or Drive line shop..

 

would be hard to find those a a wreking yard.

 

Thanks for all the info.

 

Probably still available at GM...(they're in a baggy in the glove box!) ws

 

got all the bolts lined up. thanks guys

 

drive shaft is in, fuel tank is out, carb is rebuilt, waiting on converter bolts and man she's getting close! thanks again.