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Old 01-05-2010, 08:51 AM
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spools

ok, so i was wondering just how hard it would be to install a spool in my 75 chev. rear end? its a 12 bolt one wheel peel and i hate it. im not interested in lockers, ive used them and dont really like them i just want it locked permanent. ( wheels chirping around corners i don't care about ) i been turning wrench for about 15 yrs, but never in the rear end. is this something for me to tackle, or does it need to be taken to a specialist ? no, i dont have any rear end tools ( like dials, ect. ) or would it be just as easy to find a posi unit from something else? what? ( i have changed complete rear ends before )

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Old 01-05-2010, 09:04 AM
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Quote:
Originally Posted by diamond mike
ok, so i was wondering just how hard it would be to install a spool in my 75 chev. rear end? its a 12 bolt one wheel peel and i hate it. im not interested in lockers, ive used them and dont really like them i just want it locked permanent. ( wheels chirping around corners i don't care about ) i been turning wrench for about 15 yrs, but never in the rear end. is this something for me to tackle, or does it need to be taken to a specialist ? no, i dont have any rear end tools ( like dials, ect. ) or would it be just as easy to find a posi unit from something else? what? ( i have changed complete rear ends before )

Mike I'm not to sure about the 12 bolts.. I have put them in some 9'' and wasn't hard at all.. I only use 9'' fords,, So I can't really tell you.. But I can say this.. Be careful on wet roads...
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Old 01-05-2010, 09:12 AM
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yeah, my blazer had lockers, and aside from getting tired of trying to guess which way it would jerk around corners, the wet roads weren't very fun either. this is a summer only kinda truck, or dry only. been slammed, headers only 5 or 6 inches off ground, ( kinda sucks, scrapes )
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Old 01-05-2010, 09:21 AM
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Quote:
Originally Posted by diamond mike
yeah, my blazer had lockers, and aside from getting tired of trying to guess which way it would jerk around corners, the wet roads weren't very fun either.........
If you think that was bad wait till you try wet roads with a spool.
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Old 01-05-2010, 09:28 AM
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ok, ok forget the spool, i been reviewing diff old posts about them, and it seems like the majority says WAY dangerous, and hard on parts. ok, so perhaps a donor axle from?im on the hunt.
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Old 01-05-2010, 10:54 AM
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A Powertrax locker is something you can install inside your open diff with regular hand and/or air tools. Never done one myself, but every thing I've heard about them is good, they only drawback is they are kinda pricey. BTW, FYI, a spool on the street is a HUGE mistake, but I think you already figured that out,
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Old 01-05-2010, 01:01 PM
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Things certainly have evolved from the days when it wasn't unusual to watch a hot street car crab and squeal its way around a corner or in a parking lot.

No, not a spool- a welded up spider! lol
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Old 01-05-2010, 08:14 PM
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I'm assuming that because this is a '75 with a 12 bolt that it's a truck. Eaton makes a very good posi for the truck 12 bolt. It isn't any harder to install than any other differential. You will need a dial indicator with a magnetic base and a good shim set. http://www.nastyz28.com/forum/showth...t=install+posi Here are some instructions on how to install it. This is for the 8.5 10 bolt, but it will be the same for the 12 bolt except for the ring gear bolt torque. That will be 45 foot pounds.
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Old 01-05-2010, 10:53 PM
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PowerTrax makes a posi/locker for 10 and 12 bolt GM rears that can be installed without removing the gears so no realignment is necessary. All you do is drop the cover and remove the spider gears and their system slips in place of the spiders and that's it. Stacy David installed one on his Knucklebuster project on Gears TV this season and it went in simple and easy. You might check them out.
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Old 01-06-2010, 09:38 AM
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I guess I'm one of the 'rare' "spool guys"! I've used and still use detroit lockers, limited slips, torque-loks, and spools. Depending on the situations, they're all great!. BUT... IMHO... There's nothing like a spool! In rain, ice and snow, chances are your hot rod stays home! And if you get stuck out, it's just about knowing how to drive in each situation...duh! And if your talking about an everyday driver, a spool is definitely not the best choice! (locker is though!) But for true straight line street (or strip) performance... I say a SPOOL and BIG HONKIN' TIRES!! And of course... a BLOWER!!!... again... imho! It was easy to install in my shortened 12 bolt, using good axles, and I haven't had any probs. And I use mine regularly! Good Luck!
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