4wd Conversion on 1997 2wd Dually 7.3L PSD

[LonesomeSTX]

That is sexy. I wish I stuck with my plans to go with coil springs. WHat you are doing is what i had in mind. Instead I whimped out and got a shackle reversal kit. And it has NOT been ans simple as it should be.

 

[036speed]

Well, this is still in the planning process. I have a few things going on at home that are tying up my cash. Hopefully I can start collecting parts this fall.

Plumcrazy has access to a cheap divorced case out of an 8lug Scout. However, it is passenger drop.

So i might possibly use that case with a Chevy D60. Those are cheaper and easier to find since they are not as valuable in the the wheelin world.
I would even entertain an 8 lug D44. However, I would prefer a D60. A D44 would handle the power just fine. The weight is what I am cautious about.

We will see what happens. I need to see if a passenger drop is even possible. There is a 4" exhaust pipe running along the frame rail. Not sure if I can fit the case. Everything up front should clear. I know first generation Cummins trucks ran a passenger side diff.

 

[LonesomeSTX]

Such things happen during some biulds.

 

[036speed]

I finally pulled out the 4.10s and put in the 3.55s i got for my birthday in May. I can now cruise at 70mph! My rpms dropped 20% at 70 mph.

I learned it has an open diff. That explains why I get stuck in wet grass.




Breaking them in

 

[Mudstomper99]

Was this what you were looking for minus te 5spd?

I also had the reverse shackle kit on mine. It wa made by pmf fabrications and it was simple to bolt on

 

[036speed]

Yep. Pretty much. Was looking for something closer to stock height tho.

Nice rig!

 

[Mudstomper99]

Thanks sold it a few months back. Still kicking myself in the butt for that one. It was bone stock when I got it. The pmf rsk was 3.5 inches with a 4 inch superduty spring. The ride is 100 times better with the rsk

 

[1badexplorer]

That wasn't an open dif. It was a factory trac loc. It probably needs new clutches. An open carrier is shaped differently.

 

[PlumCrazy]

Wouldn't there be an "s" spring between the side gears though if it were a Trac Lok? I don't see where the tabs for the clutch plates would go either.

Sent from my XT907 using Tapatalk 2

 

[1badexplorer]

No spring on a sterling axle. Dana axles that use a trac loc don't have a spring either. Just the smaller axles use a spring. An open carrier comes to more of a point on the side opposite or the ring gear on a 10.25.

 

[036speed]

Thanks sold it a few months back. Still kicking myself in the butt for that one. It was bone stock when I got it. The pmf rsk was 3.5 inches with a 4 inch superduty spring. The ride is 100 times better with the rsk

The RSK is one of the best mods for those trucks. I have rode in rsk modded trucks. It does ride nice.

No spring on a sterling axle. Dana axles that use a trac loc don't have a spring either. Just the smaller axles use a spring. An open carrier comes to more of a point on the side opposite or the ring gear on a 10.25.

No kidding. Learn something every day.
That makes sense too. You dont see too many 2wd trucks with an open diff.

EDIT: I wish I took a better look at it now to see how it works. Are there clutches on the outside of the spiders or something?

 

[PlumCrazy]

No spring on a sterling axle. Dana axles that use a trac loc don't have a spring either. Just the smaller axles use a spring. An open carrier comes to more of a point on the side opposite or the ring gear on a 10.25.

Ah. I see.

Sent from my XT907 using Tapatalk 2

 

[1badexplorer]

No kidding. Learn something every day.
That makes sense too. You dont see too many 2wd trucks with an open diff.

EDIT: I wish I took a better look at it now to see how it works. Are there clutches on the outside of the spiders or something?

Ah. I see.

Sent from my XT907 using Tapatalk 2

This may help you

http://www.fourdoorbronco.com/board/showthread.php?4591-Sterling-10.25-Trac-lock-rebuild

 

[swampratt36]

Is that all ? hmmm

 

[036speed]

Is that all ? hmmm

Yep. Havnt done much with this yet. Its a few places down the list.