9 inch housing 180 flip?

Chuckman

Chuckman

Well-Known Member
Joined
Oct 9, 2005
Location
Huntersville
So is the bolt pattern symmetrical on a ford 9"- can you flip the head 180 in the axle and everything line up. Looks like its a little bit offset and doing this would help center everything back up.
 
Chuckman said:
So is the bolt pattern symmetrical on a ford 9"- can you flip the head 180 in the axle and everything line up. Looks like its a little bit offset and doing this would help center everything back up.
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YOu will have to cut the complete center section out and rotate, b/c of the clearance for the ring gear side on the back of the housing.
 
would it work other than that? It would be easy enough to make a new rear cover or get a $30 one from Currie.
 
or you can buy one of these from me and make your own .
9" center section 3/16 thick 3" axle tube
edit: im not trying to be a vendor. its just i got a bunch of these from a guy that built them for nascar teams back in the day. and i need to sell some of them.
awww.supermotors.net_getfile_673676_fullsize_img_2247.jpg

awww.supermotors.net_getfile_673677_fullsize_img_2248.jpg

awww.supermotors.net_getfile_673678_fullsize_img_2249.jpg
 
broncomania said:
or you can buy one of these from me and make your own .
9" center section 3/16 thick 3" axle tube
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OK, for an almost semi-derail... what would it take to get tubes into these centers?

Uber high-end equipment (jigs, shafts, centering adapters) for a "NASCAR grade" fit?

Or could they be done with semi-common tools (clamps, bars, laser levels, etc) for a decent fit (straight & aligned tubes & NO leaking seals) :confused:

Also, they look pretty butch... how does 3/16" thickness compare with OEM centers? IIRC, the OEM 9" centers are much thinner/lighter than you'd think would hold up... :popcorn:
 
off to pull the stupid thing and see what I can find- short of the ring gear hitting the rear cover....
 
Caver Dave said:
OK, for an almost semi-derail... what would it take to get tubes into these centers?
Uber high-end equipment (jigs, shafts, centering adapters) for a "NASCAR grade" fit?
Or could they be done with semi-common tools (clamps, bars, laser levels, etc) for a decent fit (straight & aligned tubes & NO leaking seals) :confused:
Also, they look pretty butch... how does 3/16" thickness compare with OEM centers? IIRC, the OEM 9" centers are much thinner/lighter than you'd think would hold up... :popcorn:
Click to expand...
honestly dave i couldnt tell you how to go about it cause ive never done one. maybe someone else can chime in. and they might look butch in the pic but they are far from it. they are laser cut and semi welded together. IIRC these are slightly thicker than oem.:beer:
 
close, but no cigar

sorry to keep you guys waiting, but it wont work. the interesting thing is the the bolt holes are 3.25" apart around the ellipse, and top and bottom are centered by eye, but they pattern is not symmetrical. how that can be, hasnt come to me yet. but it wont work, you heard it here first. the ring gear cleared enought to let me lower it down enough that the studs were holding the chunk and it was clear to see that it wasnt to be. sooooo close, but yet so far. hey, this is spirit of hot-rodding, gotta see what you can do with what ya got. :huggy: only the top and bottom lined up. go figure. now off for a :huggy:
 
Caver Dave said:
OK, for an almost semi-derail... what would it take to get tubes into these centers?
Uber high-end equipment (jigs, shafts, centering adapters) for a "NASCAR grade" fit?
Or could they be done with semi-common tools (clamps, bars, laser levels, etc) for a decent fit (straight & aligned tubes & NO leaking seals) :confused:
Also, they look pretty butch... how does 3/16" thickness compare with OEM centers? IIRC, the OEM 9" centers are much thinner/lighter than you'd think would hold up... :popcorn:
Click to expand...


You would weld the tubes into the housing, then have someone with an alignment bar at least tack the housing ends on. Not hard to make your own though. Or you could use the eyeball method and hope. A little bit of misalignment won't kill you, but a lot will kill bearings shafts and seals... OEM housings are around 1/8" thick and don't have shoulder gussets quite that large. That's a beef housing.
 
VortecJeep said:
No, he's trying to flip just the housing to get the pinion closer to center.
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Closer to center LtoR, in order to match the D35 that its replacing. I understand the LP vs HP and reverse cut blah blah blah, I was just trying to flip the tube.
 
I was building a 9" in a yj a while back but ended up selling it before it was done. My plans were to flip the entire rear end over and finding reverse cut gears. I never looked that far into it but it seemed like it would work.
 
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