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So, I bought new rear bearing assemblies for my 80, 4-speed, and I need to take the spindle castle nut and spindle flange off in order to install the assemblies onto my Global West offset trailing arms. I have read that the nut should require a 1 1/16" socket, but the nut on the bearing assemblies I received requires a 1 1/8" socket.
Can anyone confirm the size socket needed to remove the spindle castle nut? I just want to make sure that I received the correct part, and I don't go disassembling things and voiding warranties without checking for correct application first.
Am I also correct that the spindle flange should just pull off without needing a puller? If I do need a puller, is there a specific one that you would suggest?
Last edited by Black72GTS; Aug 16, 2022 at 09:18 AM.
So, I bought new rear bearing assemblies for my 80, 4-speed, and I need to take the spindle castle nut and spindle flange off in order to install the assemblies onto my Global West offset trailing arms. I have read that the nut should require a 1 1/16" socket, but the nut on the bearing assemblies I received requires a 1 1/8" socket.
Can anyone confirm the size socket needed to remove the spindle castle nut? I just want to make sure that I received the correct part, and I don't go disassembling things and voiding warranties without checking for correct application first.
Am I also correct that the spindle flange should just pull off without needing a puller? If I do need a puller, is there a specific one that you would suggest?
That sounds right if I remember correctly. I just changed my auto spindle flanges to 4 speed flanges to get the bigger 1350 universal joints. Measure the U joint caps to be sure they're 1350 sized.
All stock 1963-1982 rear axles were a 3/4-20 thread and used the 1 1/16 nut on them. All 63-79 1/2 shafts used the 1350 u-joint. The 80-82 had 1330 or 1350. depending on the trans.
Now maybe the nut you have is larger, but it shouldn't be. I set up GW arms, make sure the parking bracket is finally in the correct place and they were using plain 7/16 bolts to hold the support on, it was another bad idea. I haven't used a set of those in a few years maybe they caught up with how the bolts should be. If not, you're going to have to drill your caliber bracket holes open.
Rear Spindle Castle Nut Socket Size
