Intermediate Steering Shaft Help!

[Slowguy]

Originally Posted by conoco

I had the same issue on my 72 k2500. I ended up replacing the steering shaft with a (BORGENSON collapsible steering shaft with u joints on both ends. It was much cheaper than replacing the stock shaft and the collapsible is safer and the u joints are super easy to service. Another upside is if you need to remove the steering shaft for other work it is much easier to remove than the stock set up. Just my thoughts hope it helps and good luck. I think total I spent 104 dollars. Here are the links for my parts if interested. Mine was also 36 splines and 3/4 inch.

https://www.jegs.com/i/Borgeson/153/460018/10002/-1
https://www.summitracing.com/parts/sum-760667

the u joint that hooks into the steering column is just a D Shaped end.

Since that shaft is 3/4 one end and 1” dd other, would you not need something like this? https://www.summitracing.com/parts/sum-760669b

[raggedjim]

Originally Posted by Slowguy

Since that shaft is 3/4 one end and 1” dd other, would you not need something like this? https://www.summitracing.com/parts/sum-760669b

I recently put a jeep shaft in. The shaft comes with 3/4" splined on one end and 1" dd on the other end.

Your steering box is probably 13/16 splined, but I'm not 100% on this. I had to ream the shaft to get it to fit. I think the 79 up steering box is a 3/4" splined so if you could use one of those you could skip a bunch of reaming.

I also welded a piece of the original collapsible shaft to use as a bushing to go from 3/4" dd to 1" dd at the end of the steering column shaft https://67-72chevytrucks.com/vboard/...&postcount=118

Good luck, Rg

[Slowguy]

Did some shopping last night. Looks like you can order any kind of u joint you want (if you know exactly what you are mating it with). I’d rather just buy exactly what I need and the only mod would be chopping the shaft to my desired length. I’ll go out today and see if I can figure out what I have by using a mic. I can say my truck is a 67 but I put an original auto column in it and a new original style auto steering box. I used the ls steering pump to power the hydro boost brakes and the steering and it works great.

As with everything I seem to do, all I wanted was to shorten the shaft a little to gain some breathing room, and here I am replacing and modding the entire intermediate shaft. at least I’m learning a little

[Slowguy]

Originally Posted by raggedjim

I recently put a jeep shaft in. The shaft comes with 3/4" splined on one end and 1" dd on the other end.

Your steering box is probably 13/16 splined, but I'm not 100% on this. I had to ream the shaft to get it to fit. I think the 79 up steering box is a 3/4" splined so if you could use one of those you could skip a bunch of reaming.

I also welded a piece of the original collapsible shaft to use as a bushing to go from 3/4" dd to 1" dd at the end of the steering column shaft https://67-72chevytrucks.com/vboard/...&postcount=118

Good luck, Rg

So the steering column spline is most likely 3/4. I measured around .74. The gearbox is .799 which is 13/16” as you mentioned? Would they both be 36 spline? Once I know, I’ll get the parts ordered. The rag joint was terrible - the bolt was stripped and I had to drill the whole thing out.

[Slowguy]

Just updating my findings. Steering box spline was 13/16”-36. New intermediate Shaft is DD 1” one side 3/4” other side. Steering spline is 3/4”-36. Chopping the length tomorrow. I’m able to scoot the steering wheel about 4-5 more inches toward the dash. Hoping it will help with room. Lower seat brackets are non adjustable once set and I have a decent speaker box where the gas tank was so the seat is more forward than I’d like but steering wheel clearance and smaller diameter wheel I think will really help. Had bench seat redone and the new seat cushions are really thick. I bet they are at least a couple inches thicker. So thick, in fact, I have to devise a method to bolt the seat back to the bench portion. Straps or something to compress the foam enough to allow me to get the bolt in the bracket.