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  #16 (permalink)  
Old 08-01-2007, 02:39 PM
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if you worry about it breaking, it probably will. if you dont give a schit wether it does or not, it will last forever.
Haha! In that case- I don't give a dang It probably won't see much track time anyways (no dang tracks around here... that I know of). So, a beefed up 7.5 should hold up.

What about just shortening a stock 12 bolt? Would that be any more cost efficient than building a puny rear end into something substantial??

Easy-e, I don't think you should have a problem with a used locker. As long as it's not damaged, or in need of rebuild- then you should be fine, assuming proper installation.

Nooj

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Old 08-01-2007, 04:33 PM
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Look at a Dana 60 as was mentioned the parts cost the same and it is bullet proof. Also cheaper to build than a 9" Ford.
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Old 08-01-2007, 06:16 PM
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Originally Posted by lumberjacknooj
Easy-e, I don't think you should have a problem with a used locker. As long as it's not damaged, or in need of rebuild- then you should be fine, assuming proper installation.

Nooj
I'm hoping so.. I have a ford 9 and an 8.5 10 bolt sitting here waiting for me to get off my......

Actually, I just missed out on a set of Richmond 3.42's and a Posi for my 8.5 brand new at a swap meet a few weeks ago for pretty cheap... hopefully they'll still have it next time the meet comes around, and hopefully it'll match my rear..
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Old 08-02-2007, 08:13 AM
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Originally Posted by ericnova72
8.5 rear diff with an s-shaped spring is an Eaton and is rebuildable. Of the two-plate-and-coil springs versions, there are two types. If the case is a one-piece forging, then it is updated or aftermarket Eaton version- also rebuildable. If the case has a bolt-on end cap on the pass. end then it is Auburn and has cone clutches and is NOT rebuildable.
Other things to watch out for are whether case is two series or three series(2.56 and down or 2.73 and up) and axle spline count(28 or 30)
Auburn non rebuildable- seen a few on eBay that seem fairly cheap brand new, are these quality units??



thanks for the info...
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Old 08-02-2007, 08:36 PM
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7.5 worthless

Yes, that's an Auburn. They seem to work good with street tires, but add Slicks or Drag Radials and a 400+hp engine and they tend to "hunt" or "wander"--switching back and forth from right tire to left tire in very rapid succession, which eats up the clutch cones. This is pretty much a dragstrip- only problem as you can't hook solid enough on the street. Auburn says they have fixed this with the Pro version, but I haven't been around one yet.
IMO an Auburn is a big risk thru EBAY and I only look for Eaton style because the Auburn can't be rebuilt.
If you are within its limit I wouldn't be afraid of an Auburn at the right price.

Last edited by ericnova72; 08-02-2007 at 08:43 PM. Reason: more info
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Old 08-02-2007, 08:40 PM
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has anyone used the richmond powertrax streetable locker for a long period of time?
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Old 08-03-2007, 09:50 PM
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Originally Posted by ericnova72
Yes, that's an Auburn. They seem to work good with street tires, but add Slicks or Drag Radials and a 400+hp engine and they tend to "hunt" or "wander"--switching back and forth from right tire to left tire in very rapid succession, which eats up the clutch cones. This is pretty much a dragstrip- only problem as you can't hook solid enough on the street. Auburn says they have fixed this with the Pro version, but I haven't been around one yet.
IMO an Auburn is a big risk thru EBAY and I only look for Eaton style because the Auburn can't be rebuilt.
If you are within its limit I wouldn't be afraid of an Auburn at the right price.
Thanks for the info, will continue my search for parts....... If I could find one for cheap enough, I'd like to pick up a posi and gears for my 7.5 10 bolt until I finish building the 8.5/ford 9" (whichever I start working on first)..... May put those plans on hold and get into a good set of heads before the winter hits.....
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