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rockwell chunk

gomer pyle

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has anyone else had any problems keeping their chunk in the axle :wtflol:. sat. i sheared or broke every bolt holding the third and it jumped out as far as the shafts would allow(about 3 in) bending the lip of the housing. i check these before every ride because they always back out a little. what the crap is causing the chunk to try and raise out? it is not hitting anything in the housing(just pulled it apart to check).
 
Are your upper links mounted to the chunk? Or steering cylinder mounted to the chunk?

J. J.
 
I had my upper link mounts mounted on top of my chunk on a 6000 lbs rig and never had a problem. It sounds like your bolts wernt tight or somethings in a bind somehow.
 
In messing with rockwells since 2000 I have NEVER heard of this...If they were not lose, that is a tough one.....Were you jumping it? Maybe the axle housing is flexing? Wow.
 
nothing is mounted to the third for this reason. i used lock washers on every bolt and check before every ride(they normally back out after a ride) :dunno:.now either the housing is bent or the lip that the third bolts to is bent, because the third won't set in there flat ???
 
gomer pyle said:
nothing is mounted to the third for this reason. i used lock washers on every bolt and check before every ride(they normally back out after a ride) :dunno:.now either the housing is bent or the lip that the third bolts to is bent, because the third won't set in there flat ???

Your pan doesn't have like a dent in it that is hitting the bull gear does it?

J. J.
 
I'm out of ideas then. I've seen chunks loosen over time that have steering cylinders and links attached to them but nothing like you're describing.

J. J.
 
i am putting brackets that bolt to the chunk and weld to the housing right now and am comtemplating a complete wrap(one side of housing over third to other side of housing)
 
gomer pyle said:
i am putting brackets that bolt to the chunk and weld to the housing right now and am comtemplating a complete wrap(one side of housing over third to other side of housing)

Why not drill the bolt heads and tie wire the bolts. Sure would be easier if it ever had to be removed.
 
John Galbreath Jr. said:
Why not drill the bolt heads and tie wire the bolts. Sure would be easier if it ever had to be removed.
because most of them are bolts, but i did put bolts in from the bottom and that might be something to try. still none of the bolts backed out on the ride, all broke off.

jr, i did think about welding it in but the third is cast
 
gomer pyle said:
because most of them are bolts, but i did put bolts in from the bottom and that might be something to try. still none of the bolts backed out on the ride, all broke off.

jr, i did think about welding it in but the third is cast

Not that I would weld the third to the housing...but, you know welding cast and steel is easily achieved with nickel rods. Done it many times and seen it done plenty more.

So why is it you do not use studs?
I would think a call to Randy O to ascertain his thoughts before you did all this "bracketary" to keep it in place would be of benefit..There are people out there running way more horsepower than you not having this problem...Search out Steve Gerster at differential engineering in Florida. He would be another good source to discuss this problem with.. He makes custom bull gear bearing caps because the factory seem to "blow off" with about 1000 or more HP :****:
 
badreligion_13 said:
Not that I would weld the third to the housing...but, you know welding cast and steel is easily achieved with nickel rods. Done it many times and seen it done plenty more.

So why is it you do not use studs?
I would think a call to Randy O to ascertain his thoughts before you did all this "bracketary" to keep it in place would be of benefit..There are people out there running way more horsepower than you not having this problem...Search out Steve Gerster at differential engineering in Florida. He would be another good source to discuss this problem with.. He makes custom bull gear bearing caps because the factory seem to "blow off" with about 1000 or more HP :****:
i am going back with some studs and some bolts. the studs that i had in there just stripped the threads. one of the reasons i posted this is because i have never heard of this happening and while i have a stout small block, i know there are a lot of people out there with more hp.
 
gomer pyle said:
i am going back with some studs and some bolts. the studs that i had in there just stripped the threads. one of the reasons i posted this is because i have never heard of this happening and while i have a stout small block, i know there are a lot of people out there with more hp.

Let us know how the studs work.. They should work better in terms of clamping force.... and you are VERY RIGHT when you say you have a STOUT small block!!!!!!!!!!
So please don't take offense, I was just recommending trying talking to either Steve Gerstener or Randy O about your very "unique" problem since they deal with rockwells and people with 1000 or more HP to see if they ever seen this problem.
 
no offense taken. and that is not a bad idea. if i don't have any luck with my idea i will give them a try
 
Randy tol me to put all T-9 bolts,(not studs) everywhere on the whole housing. None have backed out yet. Ramjet 502, cut 49's and 5500 lb truck, maybe closer to 6000 lbs
 
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