Grinding Noise

yup we have tons of chain couplers at work, and lovejoys... chain ones never seem to fail.

Im either wondering if the chain master link keeper may have broken (the keepers at my work are really thin spring metal, usually break when trying to put used back on) causing the master pin to fall out and flail around binding everything up as there isnt much room in there.

but yes chain (obviously) and both sprockets are toast. Might wanna make sure the shafts arent bent (unlikely but would you rather know now or find out when u get a weird vibration later)
 
Fastenal, Granger, McMaster Carr is who we go to at work. They usually stock all that stuff. Check some Ag suppliers too.
 
That's not just a piece of roller chain,like on a motorcycle.That is a coupling chain,or as everybody calls it,a double chain.It is made up of four sets of links with the pins being common to both halves of the chain.I have quite a few of them on different things,mostly on hydraulic pump couplings.One is on a 1963 Lorraine loader,it has been through two engine rebuilds but the sprockets still have the original paint on them.The chain part has been replaced a few times over the years.I have some on a screening plant too.I buy the chains from the bearing places.
 
UPDATE:
I studied the area and decided that there was no reason for a chain drive. The tube surrounding the area is bolted securely on both ends and there is no possibility of the flex that a chain drive would dampen.
I custom built a drive shaft out of 1 1/4 tube by mig welding the O.D. spline on one end and then directly to the shaft coming out of the rear diff.
The car runs and drives better than ever!
 
You have done just what I would have done.As I stated in a previous post,if everthing is straight & concentric,no chain coupling is needed.That was poor engineering on someones part.
 
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