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Old 10-06-2021, 03:46 AM   #1
68ls1
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Join Date: Jan 2008
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Front axle shaft universal joint upgrade?

Pulled the front axle shaft universal joint from my 71 K5 Blazer and boy were they toast. In finding part numbers for replacement, I came across this information.

Dana Spicer 5-260X - 4x4 Front Axle U-joint.

Commonly known as the "Small" axle u-joint. This u-joint was found on early Jeep, Bronco, Chevy, Dodge, International and Ford 4X4 trucks before they realized that it was too small and started to use the larger and stronger 5-297X now the 5-760X Easy to spot on open knuckle front ends by measuring the bearing cap diameter. Utilizes inside "C" Clips to lock u-joint in place.

Is there an upgrade that can be one to utilize the later universal joints?
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Old 10-06-2021, 07:47 AM   #2
MJN
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Re: Front axle shaft universal joint upgrade?

If you want to run the larger 760 joints then you'll have to get new shafts for the larger u-joints- whether you get aftermarket or used shafts from ~'73 and newer Dana 44 axles. There is no conversion joint or way to adapt a 260 shaft to accommodate the larger 760 joint.

http://67-72chevytrucks.com/vboard/s...d.php?t=804777
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Last edited by MJN; 10-06-2021 at 03:30 PM.
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Old 10-06-2021, 06:19 PM   #3
68ls1
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Location: Melbourne, Victoria
Posts: 126
Re: Front axle shaft universal joint upgrade?

Quote:
Originally Posted by MJN View Post
If you want to run the larger 760 joints then you'll have to get new shafts for the larger u-joints- whether you get aftermarket or used shafts from ~'73 and newer Dana 44 axles. There is no conversion joint or way to adapt a 260 shaft to accommodate the larger 760 joint.

http://67-72chevytrucks.com/vboard/s...d.php?t=804777
Thanks, good info in that thread
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