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Hi Everyone. I recently rebuilt the pto clutch on my 1976 C-120 and figured id post some pictures and part numbers to save other time who are doing the same. I have the 6.75" OD clutch plate and didn't want to spend the money to get a new one from Toro so i ended up doing some research and re-lined it myself. I wasn't sure on the material so i took some measurements it looks like the originals are .125" thick stock. Clutch Material: McMaster #60895K11 http://www.mcmaster.com/#60895k11/=11rane8 It comes in a 7.5 x 7.5" square so you also have enough to re-line your brake like i did. I found the easiest way to cut it was to trace the OD of the old clutch plate and for the id i found a 4" angle grinder blade was the right diameter. I used a set of snips to trim the OD and a jigsaw to do the ID and seamed to work well. Extra material: Thin jigsaw blade i used: Final product: Now i also increased the contact area versus the original. The old one only contacted about an inch in width this one i had full contact on the bell of the pulley. My pulley was scored so i face it clean on the lather removing only the minimum need to get a full clean. YOu can chuck the narrow end of the bell on the pulley, just make sure the face is true (axial run-out <.005") I now have 2" of width on contact, it should work much better now. I prepped my old clutch backing plate by removing the old work clutch and the worn out broken rivets. Using a die grinder with an abrasive wheel works good. I then used a rougher disk to make little rough grooves in the face to make sure the clutch adheres better with the epoxy. Note the old contact area. Once the backing plate is cleaned use air and carb cleaner to thoroughly clean the new clutch material and the backing plate. Now i used Loctite 380 Instant Adhesive. We use this at work for similar materials on clutches and brakes. its oil heat and impact resistant and is literally the strongest fastest drying adhesive i've ever used it really works wonders. It cleans up with carb cleaner (even on your hands) t available the cheapest from amazon: http://www.amazon.com/Loctite-135423-Toughened-Instant-Adhesive/dp/B000132VEE/ref=sr_1_1?ie=UTF8&qid=1459388480&sr=8-1&keywords=loctite+380 A zigzag pattern gives the best coverage to ensure it contacts and sticks evenly. Now make sure you just stick the clutch onto the backing plate and not the pulley I used the pulley as a plate to clamp the new lining onto the plate with the help of 3 clamps and left it there overnight. Just make sure the pulley is up so any drips don't stick the pulley to the other half. Now you can use those leftover pieces to also re-line the brake: same idea and process here... Since i had the whole thing apart anyways i decided to replace the bearings, they are a fortune from Toro and some aftermarket ones just didn't seem to be of high enough quality. I ended up finding a package deal on the originals on ebay so i figure did post the OEM bearing specs so you can find them yourselves locally or online its easier knowing the bearing manufacturers number than a Toro number. Ball Bearing (on the end taking the PTO thrust): Fafnir P204RR6 Alternative: http://www.amazon.com/Fafnir-P204RR6-Single-Ball-Bearing/dp/B00FAY909S Needle Bearing (on the inside of pulley holding the radial load): Torrington J-2420 Alternative: http://www.amazon.com/Koyo-Bearingd-8600rpm-Maximum-Rotational/dp/B007EDPF4C Grease Seal: CR 14810 (Chicago Rawhide) Alternative: http://www.amazon.com/SKF-14810-Small-Style-Diameter/dp/B00CLIVXNM/ref=sr_1_3?s=hi&ie=UTF8&qid=1459389503&sr=8-3&keywords=CR+14810 Locally here in RI/MA i always use Eastern Bearings in Prov, RI to get all my bearings and seals they have reat pricing and can get you anything you need but you can also find them online at many places. Just be careful the letters on the ends usually mean different seal types so make sure you look into the whole part number. Hope this helps! Good Luck! if you have any questions ill try to help.