just to check

[85 Jimmy]

i do have 28 splines and NOT 30 splines in the inner front shafts of my 10 bolt right? it's in an 85 jimmy

 

[Dabba]

i believe so

 

[obijuan]

if theyre original, 28 splines

 

[GRINCH]

30 Splines came out in 1989 to 1991 Blazers and Burbs