Hey guys, when you replace the 4wd steering box for the 2wd steering box what is involved with hooking up the power steering fluid lines? They all bolt in the same spot? do i have to bleed the system? and if so how do you do it? thanks!
CK5
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4wd Box to 2wd Box
- Thread starter stockk5
- Start date
As long as you have the same style box everything will just bolt up.stockk5 said:
sandawgk5
3/4 ton status
stockk5 said:
I did not even disconnect my box. I took the cap and shaft from the 2wd and put it in my 4wd box. Took all of aboot 10 minutes
. You will have to bleed the system no matter how you do it. The only thing you have to look for is if the box has the same style fittings be it oring or flare. All connections are in the same location though.Ira
makovai
1/2 ton status
i dunno what your posed to do, but i just finished cross steer yesturday and it tok about a quart of PS fluid. It was pretty noisey at first but as i kept turning the wheels it quieted down, seems to be ok now. I didn't bleed anything like you would a brake system but i suppos since its a closed system it may need to be. However a ps pump doesn't have a sealed lid like a mastercylinder does, so it'll prolly be ok.
If you swap the sector shaft make sure you have the right 1 because there are 2 different styles.sandawgk5 said:I did not even disconnect my box. I took the cap and shaft from the 2wd and put it in my 4wd box. Took all of aboot 10 minutes
Ira
sandawgk5
3/4 ton status
Chaddy said:
OOps forgot to mention that. Just compare the "teeth" on the gear portion of the shaft. If they look the same they will interchange. The difference is obvious it has to do with the length of the center tooth.
Ira
alright thanks for the quick responses guys, but how do you bleed the ps system?
sandawgk5
3/4 ton status
stockk5 said:
Put it on jack stands and turn the wheel lock to lock with the engine off for ~5 min. Check fluid level start the engine and repeat until the grinding noise stops. It will eventually works all of the air out. I did not get all of mine out at first but as I drove it it quited down.
Ira
quick hijack - what's the advantage of a 2wd steering box?
The engine needs to be running when bleeding the PS system.
for crossover steering
sandawgk5
3/4 ton status
colbystephens said:
Gotta have it to run crossover. The 2wd sector shaft is splined 360 with 4 indexing splines 90 deg apart. This allows you to put a pitman arm in the other than push pull position. The 4wd shaft is only splined on 180 and the pitman arm can only go on 1 way which is pushpull.
Ira
sandawgk5
3/4 ton status
4X4HIGH said:
Makes sense eh I was thinking of a killing the pump when low on fluid but if it is not running then no fluid to push the air out
. SorryIra
wait, so he needs it for x-over steering?....
it makes me smile when 14 people answer the same question the same way. 
it makes me smile when 14 people answer the same question the same way.
sandawgk5
3/4 ton status
colbystephens said:wait, so he needs it for x-over steering?....
No fair I explained why in my post
Ira
Leper
1/2 ton status
Along the same lines, I have a question. When you bolt the little cap back on(that is on top of the sector shaft), how tight does the nut need to be? Is it just a preload?
sandawgk5
3/4 ton status
Leper said:
When you change the shaft change the cap and all. If you do anything with that nut you need to do the preload procedure or you can lock your steering as you go down the road
. That nut controls how close the sector shaft gear is to the worm gear if it is too close your steering will jam. I just unbolted the 4 bolts on top and swapped complete assemblies.Ira
4X4HIGH said:
It depends on what you're doing and how much fluid you lose. When I did the crossover and hydro assist mod I just put the front on stands and cranked it back and forth until I thought my arms were gonna fall off. Fired it, squealed for a second or two, and then ran fine.
JEBSR
1/2 ton status
Actually if you start the engine while the system is low or has alot of air in it, it will cause the fluid to cavitate and cause the fluid to foam and take longer to bleed. the book says to get the wheels off the ground and turn from lock to lock. As you do watch the fluid level and replace as needed. Once the fluid level stops dropping then fire it up and try it out. That's not word for word obviously.
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