Transmissions and Drivetrain Need help with your trans? Problems with your axle?

just installed a minispool....

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Old Jan 14, 2010 | 09:32 PM
  #1  
blue85305's Avatar
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From: dfw tx
Car: 1984 camaro
Engine: 350
Transmission: th 350
Axle/Gears: 3:42
just installed a minispool....

and its great. the car drives better, handling is extremely predictable. its raining today, and i drove 30 miles from work to home with it, no problems only fun sideways driving when i wanted it to happen, throttle control seems to be where its at. any way just thought i'd play devils advocate.
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Old Jan 15, 2010 | 05:52 AM
  #2  
EvilCartman's Avatar
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From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
Re: just installed a minispool....

I see a "I just installed a new axle and took out the minispool" thread in your future. Those things are made for dirt tracks, not streets.
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Old Jan 15, 2010 | 05:54 AM
  #3  
c10crewchief's Avatar
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From: Mt. Olive, NC
Car: 1985 Camaro Sport Coupe
Engine: 355cid
Transmission: TH350
Axle/Gears: 3.73 Open Rear
Re: just installed a minispool....

is this a daily driver? i really want to switch from my open rear but money is super tight right now and Mini-spool fits the budget. I just hear street driving is a b@#$% with mini-spools and full spools. I drive mine maybe once to 3 times a week. Keep me posted if you would. Thanks, Clug

Last edited by c10crewchief; Jan 15, 2010 at 05:56 AM. Reason: to make point more clear
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Old Jan 15, 2010 | 12:07 PM
  #4  
big gear head's Avatar
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Re: just installed a minispool....

Bad idea. A mini spool or any spool is dangerous on the street. Not only do that make the car handle bad in curves, but they break parts. I have seen axles broke, axle studs broke and wheels broke from using spools on the street. Maybe you won't break anything, and maybe you will. If you break something maybe you will only wipe out the quarter pannel on your car, or maybe you will cross the center like and kill the woman and kids that are meeting you in the other lane. Bad idea.
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Old Jan 15, 2010 | 12:15 PM
  #5  
Stephen's Avatar
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: just installed a minispool....

Street cars should fail Vehicle Inspection at inspection time. SHOULD being the key word. Very unsafe on public roads.

Keep those on 1/4 mile & dirt tracks where they belong.

And I agree with EvilCartman. Although, I doubt you'll publicly admit it so blatantly later.
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Old Jan 15, 2010 | 02:57 PM
  #6  
//<86TA>\\'s Avatar
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: just installed a minispool....

Originally Posted by Stephen
Street cars should fail Vehicle Inspection at inspection time. SHOULD being the key word. Very unsafe on public roads.

Keep those on 1/4 mile & dirt tracks where they belong.

And I agree with EvilCartman. Although, I doubt you'll publicly admit it so blatantly later.
i dont know how the tech would know if the car had a minispool, or how/why he would look for it?

but, yes, really bad idea. take it out.
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Old Jan 15, 2010 | 03:02 PM
  #7  
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: just installed a minispool....

Originally Posted by //<86TA>\\
i dont know how the tech would know if the car had a minispool, or how/why he would look for it?
1 tight turn/corner & he'll know SOMETHING is "wrong" with the rear end & the car should fail based soley on "unsafe to drive".
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Old Jan 15, 2010 | 03:27 PM
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//<86TA>\\'s Avatar
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: just installed a minispool....

Originally Posted by Stephen
1 tight turn/corner & he'll know SOMETHING is "wrong" with the rear end & the car should fail based soley on "unsafe to drive".
maybe things are different in other parts of the country, in NJ, the tech never takes the car for a ride, just a quick stab of he gas and slam the brakes to make sure they work. Car never turns.
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Old Jan 15, 2010 | 03:51 PM
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: just installed a minispool....

Originally Posted by //<86TA>\\
maybe things are different in other parts of the country, in NJ, the tech never takes the car for a ride, just a quick stab of he gas and slam the brakes to make sure they work. Car never turns.
Scary to think they don't even road test at Inspection time. A total death trap could be let loose on the road & kill pople 5 minutes after it "passed'.

Obviously the cars in NJ aren't ACTUALLY inspected, just glanced at. Steering could be way off....Brakes not work over 5mph.....Glad I don't live there (besides the winter snow ).
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Old Jan 15, 2010 | 08:02 PM
  #10  
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From: dfw tx
Car: 1984 camaro
Engine: 350
Transmission: th 350
Axle/Gears: 3:42
Re: just installed a minispool....

Originally Posted by Stephen
Street cars should fail Vehicle Inspection at inspection time. SHOULD being the key word. Very unsafe on public roads.

Keep those on 1/4 mile & dirt tracks where they belong.

And I agree with EvilCartman. Although, I doubt you'll publicly admit it so blatantly later.
if it breaks i'll admit it, and then build it better. yes its a daily driver, i don't know who has actually driven a spooled car that posted, but its not bad in curves. they may break parts, but in this hobby breakage is to be expected. as far as being unsafe on the street i drove past several accidents today in my spooled car that involved honda civics and other "safe" cars.

"If you break something maybe you will only wipe out the quarter pannel on your car, or maybe you will cross the center like and kill the woman and kids that are meeting you in the other lane."
please explain how the same would not happen with an eaton or any other center section without c-clip elims. if an axle breaks, it doesnt care if its a spool or a clutch type diff. I HAVE SEEN axles break with eatons and stock diffs too. same ****, try another scare tactic.

Last edited by blue85305; Jan 15, 2010 at 09:10 PM.
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Old Jan 16, 2010 | 04:32 AM
  #11  
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From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
Re: just installed a minispool....

I'm guilty of driving around with a full spool in the car. There's a difference, I have upgraded axles, upgraded studs, no c-clips and a higher spline count than you. The car drives a bit different than it did with the posi (which will be going back in once I rebuild it) Pushes through the corners a bit more, sucks in parking lots and wanders a bit more in certain situations. Driven in the rain, no big deal for me and also preferd at the moment just so the tires can slip easier when turning sharp.
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Old Jan 16, 2010 | 10:46 AM
  #12  
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Re: just installed a minispool....

I've been building rear ends for 28 years. I have built hundreds of them. Most of them for street cars and trucks. I have never seen a car with a limited slip (posi) break and axle, stud or wheel on the street. None of my customers have had any parts break with a LSD on the street. I have had 2 customers break an axle (30 spline 12 bolt and 31 spline 9 inch Ford) on the street with a spool. I have had one customer break all of the studs off of an axle (Moser axle with 3 inch studs) and loose the wheel with a spool on the street. I have seen several wheels with the centers broke out using a spool on the street. All of these happened while driving on the street in normal conditions. They were not racing, just driving down the road. These were not race cars that were used on the street sometimes. These were daily driver street cars that were nothing special. Just people who were too cheap to buy a LSD, like you. They were lucky and nobody got hurt when these parts broke. I don't install spools in my customer's cars anymore if they will be driven on the street. They can take it somewhere else if that is what they want.

A LSD will slip when turning a corner. This allows one wheel to turn faster than the other and relieves the stress on the axles, wheels and studs when turning. A spool will cause a lot of stress in the axles, wheels and studs when turning because there is no differential to allow one wheel to turn faster than the other. This is what causes the parts to break. A spool is for racing only and should never be used on the street.

Scare tactic? I'm just telling you the truth. The wrecks that you passed were probably just because someone was talking on their cell phone or driving too fast. Not because of some stupid decision that they made when buying parts for their car. In this hobby breakage is to be expected? I don't now about you, but I don't expect anything on my car to break. I try to make evrything as strong as I can so that it doesn't break. If I thought there was a chance that I might loose a wheel then I'd be doing something about it. If a gear in the transmission breaks then I'll just pull over and get someone to help me get the car home. If a wheel comes off then things are going to get real bad real quick. If you were the only one who might get hurt from this then I'd say go on and kill yourself, but you are taking a chance of killing someone else who has nothing to do with the decision that you have made to install a spool in a street car.

Last edited by big gear head; Jan 16, 2010 at 11:18 AM.
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Old Jan 16, 2010 | 08:15 PM
  #13  
blue85305's Avatar
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From: dfw tx
Car: 1984 camaro
Engine: 350
Transmission: th 350
Axle/Gears: 3:42
Re: just installed a minispool....

well congrats on the experience. i don't care about it, i did what i did and don't regret it. the only thing i regret is posting anything here.
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Old Jan 16, 2010 | 08:17 PM
  #14  
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: just installed a minispool....

Originally Posted by blue85305
well congrats on the experience. i don't care about it, i did what i did and don't regret it. the only thing i regret is posting anything here.
Lighten up. Gotta learn to take the good with the bad....the criticism with the props.
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Old Jan 16, 2010 | 08:24 PM
  #15  
blue85305's Avatar
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From: dfw tx
Car: 1984 camaro
Engine: 350
Transmission: th 350
Axle/Gears: 3:42
Re: just installed a minispool....

Originally Posted by Stephen
Scary to think they don't even road test at Inspection time. A total death trap could be let loose on the road & kill pople 5 minutes after it "passed'.


Obviously the cars in NJ aren't ACTUALLY inspected, just glanced at. Steering could be way off....Brakes not work over 5mph.....Glad I don't live there (besides the winter snow ).
in my shop i get chewed because i road test cars, apparently it doesnt get them out fast enough if its done right. you're right about the good with the bad, so i degress on that subject.
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Old Dec 27, 2012 | 12:46 AM
  #16  
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From: spring lake north carolina
Car: v8 s10 and a stock 1989 firebird
Engine: s10 is 355 firebird is 305
Transmission: 700r4 full man valve body in s10
Axle/Gears: 3.55 in s10 2.73 in firebird
Re: just installed a minispool....

i know people and have run s10 trucks with built v8s and mini spools for awhile...years they have had no problems only splattered parts were on the track on slicks yea with a 7.5 it would have broke with or without the spool but only 2 or 3 on the street none of mine but 2 of my friends splattered 7.5s on the street one with sticky tires and a stall and one with a 150 shot and a hard shift to second. im not saying its the best idea but i can say i have a 94 geo tracker with 15 inches of lift 33/12.5/15s and its welded front and rear and about 3 weeks ago when i broke the v8 s10 i started driving it daily then a few days ago bought the firebird now its my dd and im thinkin about a mini spool in it. the only problem im worried about is the FACT that s10s on even sticky street tires dont have the weight over the rear tires that a bird or a camaro has. i run 275/60/15s on everything i own minus the tracker so im still debating it. a buddy of mine welded his rear all together and with 450 hp broke not the hardened seconed gear but the stock third gear sprag in the 350 turbo because the camaro didnt churp third like his s10 did rear is still holdin strong. just alittle of my .02 best bet is a locker or a factory limited slip.....im lookin for a factory limited slip if anyone has one lol otherwise no choice but to mini spool till i can find one. a 305 with 2.73s should not spin with 275/60/15s this is retarded. i want to go 8.8 like my s10 but that stupid arm wont let me.

Last edited by rebelson101; Dec 27, 2012 at 12:48 AM. Reason: spacing/wording
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Old Dec 27, 2012 | 12:54 AM
  #17  
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From: spring lake north carolina
Car: v8 s10 and a stock 1989 firebird
Engine: s10 is 355 firebird is 305
Transmission: 700r4 full man valve body in s10
Axle/Gears: 3.55 in s10 2.73 in firebird
Re: just installed a minispool....

oh and just another .02 when everyone is tellin you stuff like that it dont necessarily make then dicks they might or might not be... they could just be thinkin like i do.worst case. just concerned.think of it like this...what if it was them doin somethin like you just did that caused a wreck and killed your family. not wishing anything bad on anyone just sayin. other than that look both ways before burnouts======= ====== ==
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