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#1
08-29-2005, 12:50 AM
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rear end
ok well im trying to buy a 89 iroc from a guy a few hours away and it has a built up 305 and he says its a mean beast of a car. but its a one wheelwonder. so i was wondering how easy it is to swap a posi rear end into a 89 iroc. and what car i should get one from and if theres special tools needed. also what should i do to the rear end before putting it in and will everything else fit that was hooked up to the stock one? oh and it has a remanufactured 5 speed. and how much do they usually cost from a junkyard?
thanks-tom
__________________
 87 firebird formula ws6 (currently has a old 78 305 with the following upgrades, including lots of miles and stock heads and internals....oops) crane cam cam specs performance valve springs and retainers, flowtech headers, 255 lph fuel pump, holley 600cfm carb, weiand single plane manifold, a healty diet. 14.90 1/4 mile....just wait for the 406 to be finished MY VIDEOS MY PICTURES -Tom 
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#2
08-29-2005, 04:18 AM
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are you talking about swapping the entire third-member? or just puttin a posi into your unit? as far as just swapping an entire third member, its very straight-forward, pull one out, put in the other... i would recommend looking for a 4th gen third member out of a z28, they had posi, and it would most likely be cheaper than buying one for the third gen...
link recently did his ass transplant... i did mine but a long time ago now and i'm not a fresh on the info, ask him for info, i believe some1 else did it recently as well, their name slips my mind right now...
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 '92 RS lt1/t56, lt4 hot cam, 30lb injectors, 54mm throttle body, full exhaust, 4.11 posi, 4 coil ignition, alluminum driveshaft, adj rear suspension, low. springs, electric water pump, custom tune.
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#3
08-29-2005, 07:13 AM
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Re: rear end
i think it was that taco dude.
__________________
All Throttle, No Bottle! Torque Makes You Go... FAST! Horsepower Is For Braggin Rights. Money talks, But all mine ever says is Goodbye ~Viper  "twospirts" / "TS" - Definition: Obsolete
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#4
08-29-2005, 08:17 AM
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Re: rear end
umm woah that post made me feel dumb..... whats a third member???
__________________
87 firebird formula ws6 (currently has a old 78 305 with the following upgrades, including lots of miles and stock heads and internals....oops) crane cam cam specs performance valve springs and retainers, flowtech headers, 255 lph fuel pump, holley 600cfm carb, weiand single plane manifold, a healty diet. 14.90 1/4 mile....just wait for the 406 to be finished MY VIDEOS MY PICTURES -Tom
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#5
08-29-2005, 08:18 AM
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the third member is the entire piece, the gears, axles, and the housing that contains them...
__________________
'92 RS lt1/t56, lt4 hot cam, 30lb injectors, 54mm throttle body, full exhaust, 4.11 posi, 4 coil ignition, alluminum driveshaft, adj rear suspension, low. springs, electric water pump, custom tune.
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#6
08-29-2005, 08:23 AM
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Re: rear end
i was talking about the whole thing but how do you do just the third member?
and do the 4th gen z28 rears bolt right up and it done?
__________________
87 firebird formula ws6 (currently has a old 78 305 with the following upgrades, including lots of miles and stock heads and internals....oops) crane cam cam specs performance valve springs and retainers, flowtech headers, 255 lph fuel pump, holley 600cfm carb, weiand single plane manifold, a healty diet. 14.90 1/4 mile....just wait for the 406 to be finished MY VIDEOS MY PICTURES -Tom
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#7
08-29-2005, 08:33 AM
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third member IS the whole thing lol... and yes a 4th gen rear will bolt right up... i think there are just a few changes to be made to the brake lines... if the donor car had ABS... other than that it is a straight bolt on
__________________
'92 RS lt1/t56, lt4 hot cam, 30lb injectors, 54mm throttle body, full exhaust, 4.11 posi, 4 coil ignition, alluminum driveshaft, adj rear suspension, low. springs, electric water pump, custom tune.
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#8
08-29-2005, 08:40 AM
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Re: rear end
oh lol cool. thanks alot man.
__________________
87 firebird formula ws6 (currently has a old 78 305 with the following upgrades, including lots of miles and stock heads and internals....oops) crane cam cam specs performance valve springs and retainers, flowtech headers, 255 lph fuel pump, holley 600cfm carb, weiand single plane manifold, a healty diet. 14.90 1/4 mile....just wait for the 406 to be finished MY VIDEOS MY PICTURES -Tom
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#9
08-29-2005, 01:16 PM
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Re: rear end
88, i swapped in a 4th gen rear, the whole system, from brake caliper on the left to the right, the whole thing. And it bolts right up, very straight forward like drvngstorm said. Like he said, it would definitely be better to get one from a 4th gen Z28 or Trans Am (what i got mine from), cuz you will notice the difference when it's all set and done. My car hit 60 a helluva lot quicker than to one wheeler, and it just looks better when your spinning both tires, instead of one.
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87 IROC - R.I.P, and she will never be forgotten  90 RS - The beginning of a new era... I hope.
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#10
08-29-2005, 03:41 PM
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Re: rear end
use an LT1 rear and youre good to go
__________________
97 Camaro - 2.077 60', 14.745 @ 92.20 - still down, one year later. 194k miles-160* thermo-V8 shocks/springs (V6 rear springs)-3" Magnaflow !cat (3" dynomax bullet) back-SLP CAI-stock boxed LCAs-poly tranny mount and torque arm bushing-custom HPTuners tuning-4.10s/eaton/TA girdle-3.5" alum DS-spohn LCA brackets-prostar skinnies 179.75 RWHP, 204.52 RWTQ ON ITS WAY: MORE R.I.P. Andy 87 Benz 190e - DD 01 EX250 - still gotta get my license for this thing
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#11
08-29-2005, 04:35 PM
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Re: rear end
thanks alot. i am looking foreward to the swap. but first i need to get the car lol. hopefully no one beats me there. im going laborday weekend to go test drive it!!!4 more days.... SOMEONE BUY MY CAR!!!!!!!! lol. my mom wont let me buy it till i sell ny 88 maro
__________________
87 firebird formula ws6 (currently has a old 78 305 with the following upgrades, including lots of miles and stock heads and internals....oops) crane cam cam specs performance valve springs and retainers, flowtech headers, 255 lph fuel pump, holley 600cfm carb, weiand single plane manifold, a healty diet. 14.90 1/4 mile....just wait for the 406 to be finished MY VIDEOS MY PICTURES -Tom
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#12
08-29-2005, 08:18 PM
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Re: rear end
Damn, that sucks. Do you have the cash ready for the iroc? Would you be able to buy it, and then sell the 88 later?
__________________
87 IROC - R.I.P, and she will never be forgotten 90 RS - The beginning of a new era... I hope.
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#13
08-29-2005, 08:48 PM
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Re: rear end
i will buy your 88 camaro for 900 bucks, but you gotta deliver it to NJ.
__________________
All Throttle, No Bottle! Torque Makes You Go... FAST! Horsepower Is For Braggin Rights. Money talks, But all mine ever says is Goodbye ~Viper "twospirts" / "TS" - Definition: Obsolete
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#14
08-29-2005, 10:15 PM
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Re: rear end
lol. sorry but im looking for at least 2800. and no i dont have the cash right now i wish i did. thats why i need to sell my car soon. one kid says hes gonnna call me to test drive it but i havnt heard back from him.but its only been 2 days. i think im gonna put it on ebay soon if he dosnt call me back tomorrow.
__________________
87 firebird formula ws6 (currently has a old 78 305 with the following upgrades, including lots of miles and stock heads and internals....oops) crane cam cam specs performance valve springs and retainers, flowtech headers, 255 lph fuel pump, holley 600cfm carb, weiand single plane manifold, a healty diet. 14.90 1/4 mile....just wait for the 406 to be finished MY VIDEOS MY PICTURES -Tom
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#15
08-30-2005, 06:29 AM
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Re: rear end
2800 that pretty high what tricks does it do?
__________________
 http://www.cardomain.com/ride/631458 _______________ 92 Camaro V8 TBI 305 with Dynomax 3" Catback Exhaust, ASCD Iroc Turbo Hood, Goodyear Triple Tread Tires, K&N Open Element, Cat Delete, WonderBar Steering Brace, 160 Thermostat
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