Installing a steering shaft universal joint
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Tuned
Joined: Sep 2016
Posts: 492
Likes: 77
From: Eureka Springs Arkansas
Installing a steering shaft universal joint
First time in this section.
I’ve put a 79 cab on a 81 F250 4x4 frame and running gear. I’m needing to install a I-joint on the steering shaft. This will be a daily driver.
are those small set screws all that hold the u-joint on?
this makes me a little nervous, especially on the DD end.
I’d like to find a U-joint that clamps to the shaft and gear box rather than just small set screws.
I’ve put a 79 cab on a 81 F250 4x4 frame and running gear. I’m needing to install a I-joint on the steering shaft. This will be a daily driver.
are those small set screws all that hold the u-joint on?
this makes me a little nervous, especially on the DD end.
I’d like to find a U-joint that clamps to the shaft and gear box rather than just small set screws.
Moderator & parts slinger
Joined: Feb 2007
Posts: 50,189
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From: S/W Missouri, Polk county
I know that on a 78/79 4wd F250 that steering shaft in the engine compartment mini u joint up near the fire wall is not (easiable) replacable. Well with a grinder and a welder it can be. And they do not have a flex (rag) joint either, that is a 1/2 ton 2wd and 4wd set up.
Borgeson has you covered. With a complete cut to slip fit shaft. Measure X3 and cut once. Account for compaction of shaft.
https://www.borgeson.com/?target=sea...&including=all
If you just want to use the replaclement u joint only and cut the bad out. Use the D shapped shaft and the D shapped u joint end to make for a more secure set up besides the set screws and the set screw lock nuts. And a little bit of welder tack tack.
Also Flaming River has u joints and D shaft matrial. https://www.flamingriver.com/steerin...joints?cat=125
Borgeson has you covered. With a complete cut to slip fit shaft. Measure X3 and cut once. Account for compaction of shaft.
https://www.borgeson.com/?target=sea...&including=all
If you just want to use the replaclement u joint only and cut the bad out. Use the D shapped shaft and the D shapped u joint end to make for a more secure set up besides the set screws and the set screw lock nuts. And a little bit of welder tack tack.
Also Flaming River has u joints and D shaft matrial. https://www.flamingriver.com/steerin...joints?cat=125
Last edited by 77&79F250; Mar 9, 2026 at 11:20 PM.
Thread Starter
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Tuned
Joined: Sep 2016
Posts: 492
Likes: 77
From: Eureka Springs Arkansas
I plan on using the steering shaft from the newer frame but it doesn’t couple up to my 79 2x4 steering column. I need to buy a splined to DD
U-joint. Just don’t trust the little set screws on the DD shaft. Welding would make me feel better
U-joint. Just don’t trust the little set screws on the DD shaft. Welding would make me feel better
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