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Old 01-26-2006, 08:22 AM
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What's this under my '58?

This rear axle looks to be original.
Car is a 1958 Chevy Delray, suppose to have factory 6 Cyl but that has been replaced with a 327. Unsure if the tranny is original or replaced when motor was.
I just got the Service Manual for my '58 but no mention as to the type of axle sitting under it. Has drum brakes. I took a brush to the tag on on of the bolts but can't make out any numbers.

Looks like a Ford 9" but the raised ribs on it don't fit with any I have found on the net with all my searches.

Frank

REAR SHOT

PASSENGER SIDE

DRIVERS SIDE

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Old 01-26-2006, 09:53 AM
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looks like the same rearend that i had under my 63 nova except i don't got that rearend link. i think in 64 they changed to the traditional 10 bolt/12 bolt you are accustomed to seeing. they aren't too strong, but decent. some even had posi's. i have seen the posi units at swap meets sell for $100 with 4.88 gears.

here are a few quick links i found on a google search...
http://www.hotrod.com/techarticles/48618/index17.html
http://www.hotrod.com/techarticles/48618/index11.html
http://www.hotrod.com/techarticles/48618/

Last edited by jvsapp; 01-26-2006 at 04:37 PM.
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Old 01-26-2006, 12:38 PM
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It looks like a bone stock 58 setup to me. Chevy used that center section from 55 to 64. Even the early 4 cyl. ChevyII's used 'em. If it was a factory posi. unit there will be a big "P" cast above the numbers. P cases are still worth quite a bit even though the axles were inherently weak. If you pull one of the axles and it has 17 splines, it's stock chevy - P case or not. 55 and 56 had different axles and axle bearings then the 57 thru 64's - they won't interchange but the drop-out center section will. If it was an automatic, it's probably 3.55 or higher ratio. The standard trans. equipped cars usually ran 3.73's and lower. I think Spicer made 'em.

foot note - 55 and 56 housings weren't drill for a drain plug.

Last edited by PrimeMover; 01-26-2006 at 12:51 PM.
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Old 01-26-2006, 04:37 PM
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by the way what tranny is in there now? if it is a power glide(cast iron) then chances are it is original. the aluminum ones were later on... same with T350 and T400 trannies. manual trans, then it may be a t-10 or a saginaw.
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Old 01-26-2006, 08:11 PM
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Quote:
Originally Posted by jvsapp
by the way what tranny is in there now? if it is a power glide(cast iron) then chances are it is original. the aluminum ones were later on... same with T350 and T400 trannies. manual trans, then it may be a t-10 or a saginaw.
I don't know what tranny is in there now. All I know is that the 6 Cyl was taken out and a 327 dropped in. There is an after market Hurst shifter on the floor ( 3sp Auto I think. ). Was a column shift.Tranny looks short, drive shaft appears to be stock. I will try and get a couple of pic's of the tranny.
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Old 01-26-2006, 08:52 PM
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jvsapp,

Hope these are OK... Took a few pic's of the tranny, as best as I could..
I have a few more if these don't tell the whole story.

From Drivers Side


From Passengers Side
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Old 01-27-2006, 08:13 AM
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This looks alot like the diff I have under one of my T-Buckets which is a 57 Chev. I believe the only year that had the drain plug under the diff was '57, but maybe GM installed some of these in early '58s.
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Old 01-27-2006, 09:31 AM
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it's a T350... missing hte torque converter cover though.so you're on the right track... i should be getting my T350 behind my i-6 on my nova in the next week or 2...
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Old 01-27-2006, 09:45 AM
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Quote:
Originally Posted by jvsapp
it's a T350... missing hte torque converter cover though.so you're on the right track... i should be getting my T350 behind my i-6 on my nova in the next week or 2...
ThanX..

I was told that this '58 spent most of the 70's on the straight line, draggin.

Should I worry about the cover missing?
I know that a lot of stuff was stripped off the car to make it as light as possible for the strip.

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Old 01-27-2006, 09:54 AM
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unles you are planning to drive on unpaved roads, or gravel drive ways or have the exhaust cross under the torque converter, i wouldn't worry about it.

beautiful car.... my paint supplier had a 58 bel-air that he was selling for only the price of the new chrome he purchased for it.($4k)... at the time funds were few so he sold it to someone else... it needed major work beingthat it sat in the salt air here for years, and the roof rails needed to be changed on both sides, but i always envisioned the car black or silver.... down on 17" wheels... one day...
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Old 01-27-2006, 11:12 AM
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If it was a 6cly. Manual three-speed to begin with, it probably had 4.11 gears out of the box. Once the 327/350 was transplanted in there, the 4.11's wouldn't be much good for anything other than the drags. You say it might have been raced. Although the rearend looks like it's been under there since 58, I'm wondering if it might have been changed out to a posi. unit, somewhere down the line, for the drags? An easy way to check for posi. - jack both rear wheels off the ground, and rotate one rear wheel. If the one on the other side rotates the same way, it's got it. If the other side goes the oposite direction it's an open diff.
Another way - scratch off the carrier housing, above the ribs, and look for the magic BIG "P".. Those complete diffs are worth from $400 to $1000, depending on the numbers.
FYI - It'shighly unlikly that a 6cly car came with factory posi. but stranger things have happened.

Hope you scored!
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Old 01-27-2006, 11:27 AM
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PrimeMover,
ThanX for the info, on the Posi.

I will have some time this weekend to check a couple of things out.
I'll keep ya updated.
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Old 01-27-2006, 11:31 AM
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so being that it is a 327/350 drag car, what are your plans? run it? restore it? colors? i came across one that was in las vegas that was silver, and it sold me on that body... i know that they are getting harder to find... but when i went to memory lane in california a couple years back, they had 6 of them... so there still a chance...
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Old 01-27-2006, 11:55 AM
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Quote:
Originally Posted by jvsapp
so being that it is a 327/350 drag car, what are your plans? run it? restore it? colors? i came across one that was in las vegas that was silver, and it sold me on that body... i know that they are getting harder to find... but when i went to memory lane in california a couple years back, they had 6 of them... so there still a chance...
I like the power that it has and would like to squeeze it too about 400hp. The Wife won't go for me dragin it.
Drop 17's under her, 8" up front and 10" out back, style undecided yet. Every body is using AR Torq Thrust II's.
Here is an idear I've keeped in mind:


I'm hoping to at least restore the shell, interior can use an upgrade, leather & power seats.
As for color, I am partial to Nice Deep Blue monotone.

OR
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Old 01-27-2006, 12:17 PM
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Quote:
Originally Posted by 58Chev
Every body is using AR Torq Thrust II's.
i hear that.... i liked the look, but now they are played out. my nova will be sporting original rocket rims... once they are rechromed. those pictures are reallly nice though. i like the 2 tone one. ene though it dosen't have the glass in.



Last edited by jvsapp; 01-27-2006 at 12:29 PM.
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