input shft replacement

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Dale Greb

Newbie
Joined
Apr 21, 2016
Messages
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Location
Killingly CT
i have a 92 k1500 that I am doing a 5 speed swap in...it is going from 700r4 to nv3500. I need a 32 spline input shaft instead of the 27 spline that's inside of the transfer case now. when I go to order a input shaft, it gives me the option of a 24mm bearing or an 18mm bearing. how am I to be sure which size the bearing is? thanks in advance for any help
 
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