76 k20 driveshaft to front of transfer case front end yoke question, looks and measures similar to Dorman 697-500

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gbnbrb123

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Jun 14, 2017
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Location
Arrington, VA
First Name
Nicholas
Truck Year
1985
Truck Model
K10
Engine Size
305
I am having some confusion, my son has a 76 k20 automatic with what I believe to be a np203 transfer case, 346321. The front axle is a dana 44. The problem is everything says the yoke should be 26 splines, mine is 30, plus not everything measures correct. The hub diameter is 1.75in, c/l to end 3.4in, u joint width near 3.3in, total length near 3.4in. The yoke was obviously damaged from the prior owner, just trying to figure out what I need to purchase for the front of the transfer case to attach to the driveshaft. Measurements seem close near spot on with the Dorman 697-500, except for the total length. Thanks, Nick

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Last edited:

gbnbrb123

Junior Member
Joined
Jun 14, 2017
Posts
15
Reaction score
6
Location
Arrington, VA
First Name
Nicholas
Truck Year
1985
Truck Model
K10
Engine Size
305
Well I found the part # SPI-2-4-4801, apparently 30 spline female that is no longer made for the NP203.
 

Termite_Delight

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Lanark Ontario Canada
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Andy
Truck Year
1976 1975
Truck Model
K2500 K2500
Engine Size
350 L33
Should be lots in the scrap yards. Someone here might have an extra.
 

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