Axle seals

[crawfw]

Need to know what axle seals I need for the hbody differential. It's a 79 sunbird with 5 lug conversion with s10 axles. I thought the s10 axles were 28 spline but now I'm not sure because I read a thread on here that said earlier yr s10 had 26 spline like the hbody. Would the seal be different for a 28 or 26 spline? I'm pretty sure my axles are from an 82 to 87 s10. Still figuring out the mods on this thing. Just got it less than 2 weeks ago. Lol. Its def a h body differential though. Thanks, Bill

[monzaz]

same seal in all GM rears (car or s-10 truck) 8660s is your number. Jim