10 Bolt Pinion Yoke U-joint Size?

Tried searching for over an hour but all i find is giberish and people swapping to larger rearends info.

I need the size of my 95 GMC Sierra 2wd RCSB stock 10 bolt pinion yoke, I've read on spicer's site 1310 or maybe 3R for all the years/models 8.5 But figure maybe by 1995 they stuck to one size for the trucks? I do not want to buy an aftermarket 1350 pinion yoke for my 10 bolt.

Why i need the size because someone will surely ask. Is cause I just got a used aftermarket driveshaft that is 1350 ends. So I need a 1350 to ???? conversion U-joint at the rear. Trans slip yoke will be 1350 & 1350

Funny side story: My 89 Silverado 2wd RCLB had the wrong rear U-joint and even replaced it with the incorrect one. Cause at the time many many years ago, I gave up at the local parts stores trying to get the right one. It was too short/narrow on the pinion yoke side so the shaft would flop up/down if you moved it LOL never had a problem I only tried to replace it for maintenance but over 100k with the wrong rear U-joint and NP! These days with the internet I won't settle for that.

Did you check the YT? Plenty of babbling non-sensical information there to sort through.

Do you have the original driveshaft still? How were the bearing cups retained originally in the shaft? Clips or plastic injection? If plastic, I'd say you need 3R/S44.

When I worked at a parts store, this is the chart I used to find stuff that wasn’t listed, marked or known.

Found stuff for steering shafts and PTO tractor stuff too.

Orpedcrow said:

When I worked at a parts store, this is the chart I used to find stuff that wasn’t listed, marked or known.

Found stuff for steering shafts and PTO tractor stuff too.

Click to expand...

Did you forget a link? I'm not seeing any chart.

My bad

454cid said:

Do you have the original driveshaft still? How were the bearing cups retained originally in the shaft? Clips or plastic injection? If plastic, I'd say you need 3R/S44.

Click to expand...

Yup still in the truck, haven't looked honestly.

Wild guess: Precision 447 or similar, installed opposite of the usual 14-bolt axle upgrade direction--big side in the shaft, small side in the yoke.

Confirm before buying.

I used moog 447 to go from 95 c1500 rcsb (plastic injected) driveshaft to 1350. Yours should be the same just the opposite of what I did, like @Schurkey said.