1973 F-250 Need drive shaft advice
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1973 F-250 Need drive shaft advice
I am looking for advice on how to best up grade my rear drive shaft on my 1973 f250 with a divorced Tcase and a Dana 60 in the rear. The problem is I on the 4rth set of u-joints in the last 3 years and 15,000 miles. the last 2 are in the last 3000 miles as the yokes are now damaged. I am using Napa 275 super strength joints. How large of a yoke and what series joint can I upgrade to without installing a Dana 70. I want to keep under $650 on this upgrade. Just hoping to find what is doable. Note: the cummins powerplant may be just too much torque for the factory stuff. Thanks
Cargo Master
Joined: Oct 2010
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Yeah. You are blowing u joints because of the cummins. If your rear end is stock you are waiting to blow that up too. Time to upgrade to a 10.5 sterling or a gm 14 bolt. Both will take a 1350 or a 1410 yoke. Swapping to a CV driveshaft limits you to 1350. However CV shafts run smoother. You do have to re angle your axle though. CV shafts came stock on your cummins donor truck.
$650 will acomplish a np205 1350 flange yoke and a cv driveshaft. That's about it. My rear shaft was $480.00 and the flange yoke is just over $100.00. Your big issue is any rear axle swap is going to use a different length driveshaft. My front and rear 1350 CV drive shafts were almost $1000.00. You may need to rethink your $650.00 budget.
$650 will acomplish a np205 1350 flange yoke and a cv driveshaft. That's about it. My rear shaft was $480.00 and the flange yoke is just over $100.00. Your big issue is any rear axle swap is going to use a different length driveshaft. My front and rear 1350 CV drive shafts were almost $1000.00. You may need to rethink your $650.00 budget.
Cargo Master
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1310 or 1330. I cannot remember off the top of my head. I want to say 1310. The only real difference between 1350 and 1410 is a tiny bit of strength and more angle capability. If your not running a huge lift and a lot if driveline angle I'd run 1350. 1350 is a lot more common as far as yokes and what not. Just make sure on your yokes you get the U Bolt ones not straps.
My thread in my signature shows my set up so far. The flange yokes on the front and rear np205 output made it easier to run cv drive shafts.
My thread in my signature shows my set up so far. The flange yokes on the front and rear np205 output made it easier to run cv drive shafts.
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Learning
I have swapped in a 1985 F-250 dana 60 into this truck and I am now wishing I had found a Dana 70 or 80 at the time. I am looking at an F-350 for parts, but I really do not want to swap again.
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From: darlington
30 spline
"I'd also look for a '76 up D60, your '73 is only 16 spline, '76 up is 30 spline". My 75 is 30 spline,I dont know if and when the exact date the change over was ,but I do know my 75 is 30 spline.
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