another u joint question sf14b

[ncgamedog]

I am putting a set of what i call light duty 3/4t axles in my 85' silverado. they are from an 85' sub. it's a sf14b 8lug and 10b 8lug. question is what joint will i need for the rear? I got the axle under the rear today and slid the drive shaft up. the joint fits in the yolk like its the right series but dosent seat right. the factory 1/2t shaft has inside lock u-joints , could i need a conversion joint that is half inside and half outside? and what would it be 1310 or 1350? also the straps have a narrower spread on the sf14b than the old 10b by like only 1/8 inch or less. weird? i'm not sure what i need to make it work. any help would be great, thanks- justin

 

[JDNobodi]

Sound like you need a conversion joint. 14bsf uses the 1350 joint. You could, if you are careful, swap the yokes between your old 10bolt and 14bsf. Remember, that the 14bsf uses a crush sleeve.

Edit- here is the thread on 14bsf tech.
http://coloradok5.com/forums/showthread.php?t=135125