12 bolt questions.
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From: Houston, TX
12 bolt questions. 1. What's the difference between a posi and a locker?
2. What's better?
3. Is the upgraded super strength posi the locker? (the $145 option)
4. If not, how come the locker isnt listed as an option?
5. How come no gear ratios above 4.10 are offered?
6. Is the aluminum support cover any better than the standard chrome cover?
7. How come a spool isnt an option?
8. If a locker, posi, and spool are all different, can you explain how each works and what each of them best fits its uses?
Thanks.
2. What's better?
3. Is the upgraded super strength posi the locker? (the $145 option)
4. If not, how come the locker isnt listed as an option?
5. How come no gear ratios above 4.10 are offered?
6. Is the aluminum support cover any better than the standard chrome cover?
7. How come a spool isnt an option?
8. If a locker, posi, and spool are all different, can you explain how each works and what each of them best fits its uses?
Thanks.
Staging Lane
Joined: Mar 2004
Posts: 69
Likes: 0
From: Fox River Grove, IL
Originally Posted by BlackBeaSSt
1. What's the difference between a posi and a locker?
2. What's better?
3. Is the upgraded super strength posi the locker? (the $145 option)
4. If not, how come the locker isnt listed as an option?
5. How come no gear ratios above 4.10 are offered?
6. Is the aluminum support cover any better than the standard chrome cover?
7. How come a spool isnt an option?
8. If a locker, posi, and spool are all different, can you explain how each works and what each of them best fits its uses?
Thanks.
2. What's better?
3. Is the upgraded super strength posi the locker? (the $145 option)
4. If not, how come the locker isnt listed as an option?
5. How come no gear ratios above 4.10 are offered?
6. Is the aluminum support cover any better than the standard chrome cover?
7. How come a spool isnt an option?
8. If a locker, posi, and spool are all different, can you explain how each works and what each of them best fits its uses?
Thanks.
I think spools and lockers are pretty much the same but I dunno for sure.
The rest I dunno either.
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From: H-town
well, a posi usually has clutches that proved friction when both tires are going in opposite directions. same thing as a limited slip. you will never have 100% traction but it will be close.
A locker, on the other hand, alows the tires to go at different speeds untill a certain speed and then locks once one tire looses traction. some lock once a curtain amount of torque is applied. this is the better on to have. F-bodys got lockers in 99. before that, they have posi/limited slip.
A spool, is just a single piece of machined metal, with no moveing parts that locks the axles together all the time. deffenetly only for drag raceing, and also the strongest one to have.
good luck.
A locker, on the other hand, alows the tires to go at different speeds untill a certain speed and then locks once one tire looses traction. some lock once a curtain amount of torque is applied. this is the better on to have. F-bodys got lockers in 99. before that, they have posi/limited slip.
A spool, is just a single piece of machined metal, with no moveing parts that locks the axles together all the time. deffenetly only for drag raceing, and also the strongest one to have.
good luck.
Originally Posted by taqwache
well, a posi usually has clutches that proved friction when both tires are going in opposite directions. same thing as a limited slip. you will never have 100% traction but it will be close.
A locker, on the other hand, alows the tires to go at different speeds untill a certain speed and then locks once one tire looses traction. some lock once a curtain amount of torque is applied. this is the better on to have. F-bodys got lockers in 99. before that, they have posi/limited slip.
A spool, is just a single piece of machined metal, with no moveing parts that locks the axles together all the time. deffenetly only for drag raceing, and also the strongest one to have.
good luck.
A locker, on the other hand, alows the tires to go at different speeds untill a certain speed and then locks once one tire looses traction. some lock once a curtain amount of torque is applied. this is the better on to have. F-bodys got lockers in 99. before that, they have posi/limited slip.
A spool, is just a single piece of machined metal, with no moveing parts that locks the axles together all the time. deffenetly only for drag raceing, and also the strongest one to have.
good luck.
UM, NO....
gm has never used a locker oem.
btw
factory style posi's use clutch style plates to achive traction at both
wheels. i agree they don't do the job 100%
you have several options for carriers
factory plate (factory or eaton)
cone (alburn)
helixical gear (torsen)
locker (power trax or detroit locker)
spool (strange, ect)
need to look at all options choose the best for your needs
of all of the carriers the eaton is one that should work on any street
car. i understand these are h.d and don't have any other issues.
everything else either is weaker or has some sort of trait that
is objectional to most people
Thread Starter
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From: Houston, TX
Is it true that if you order your rear with a spool, then it doesnt come with ABS? I dont have TCS, but I do have ABS and I would like to keep it for the time being. I need to figure out what carrier is going to work best for me. Can someone help me decide? I drive the car here and there on the street, but just for cruising purposes. It may come out once or twice a week if that and its usually on a weekend to a meet up. Other than that, it sees the drag strip about once or twice a week. In the hotter season, it doesnt see much track use, however, in the cooler season, I plan to take it out at least twice a week. The car doesnt have an extreme set up, but I hope to break into the 10s with cam only after my changes. As time goes on and I save up more money, I plan to do more, but I dont know what yet. What do you think I should go with? Thanks.
10 Second Club
Joined: Jun 2002
Posts: 1,884
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From: H-town
Originally Posted by OWENMUSTANG
UM, NO....
gm has never used a locker oem.
btw
factory style posi's use clutch style plates to achive traction at both
wheels. i agree they don't do the job 100%
you have several options for carriers
factory plate (factory or eaton)
cone (alburn)
helixical gear (torsen)
locker (power trax or detroit locker)
spool (strange, ect)
need to look at all options choose the best for your needs
of all of the carriers the eaton is one that should work on any street
car. i understand these are h.d and don't have any other issues.
everything else either is weaker or has some sort of trait that
is objectional to most people
gm has never used a locker oem.
btw
factory style posi's use clutch style plates to achive traction at both
wheels. i agree they don't do the job 100%
you have several options for carriers
factory plate (factory or eaton)
cone (alburn)
helixical gear (torsen)
locker (power trax or detroit locker)
spool (strange, ect)
need to look at all options choose the best for your needs
of all of the carriers the eaton is one that should work on any street
car. i understand these are h.d and don't have any other issues.
everything else either is weaker or has some sort of trait that
is objectional to most people
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10 Second Club
Joined: Jun 2002
Posts: 1,884
Likes: 4
From: H-town
http://www.chevrolet.com/silverado/#z71
check out this ad. if you look at the description of the Z71, is specifically says it comes with a heavy dudy locking differential. this is the G80 found on most 1500 trucks with that option. the Z71 comes with it standard. although it is not nearly as strong as the detroit, it is a true locker. once on tire spins a certain speed different then the other, it locks them together. there is no slip.
check out this ad. if you look at the description of the Z71, is specifically says it comes with a heavy dudy locking differential. this is the G80 found on most 1500 trucks with that option. the Z71 comes with it standard. although it is not nearly as strong as the detroit, it is a true locker. once on tire spins a certain speed different then the other, it locks them together. there is no slip.
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Originally Posted by BlackBeaSSt
Is it true that if you order your rear with a spool, then it doesnt come with ABS? I dont have TCS, but I do have ABS and I would like to keep it for the time being. I need to figure out what carrier is going to work best for me. Can someone help me decide? I drive the car here and there on the street, but just for cruising purposes. It may come out once or twice a week if that and its usually on a weekend to a meet up. Other than that, it sees the drag strip about once or twice a week. In the hotter season, it doesnt see much track use, however, in the cooler season, I plan to take it out at least twice a week. The car doesnt have an extreme set up, but I hope to break into the 10s with cam only after my changes. As time goes on and I save up more money, I plan to do more, but I dont know what yet. What do you think I should go with? Thanks.
ABS won't effectively work as the factory designed because with the spool no l/r tire spin difference is either noticed by the sensors or allowed by the spool. Most track guys going 10's say the ABS feels funny trying to stop at the end of the track.
I also want to retain my ABS because my car sees rainy drives sometimes and that's it. If the roads were alwys clean and dry I don't think you'll miss the ABS. Think of the last time you actually felt it help you avoid collision or stop better....
Street car that is sometimes raced = posi with ABS
Race car driven sometimes on the street = spool no ABS
Thread Starter
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From: Houston, TX
Well, the car NEVER sees rain even before it started becoming more and more of a race car. The car doesnt have the windshield washer fluid resevoir or wipers on it, so I dont see my car ever seeing the rain again. I only take the car out when its sunny and I know for sure its not going to rain that day. The only set of wheels and tires I have for the car are Bogarts with skinnies in front and ET Streets in back. I wouldnt necessarily call it a race car, but yes, it does see more track time then it does street. However, the car hasnt moved in quite some time because Im making some changes, some in which I cant do at the moment. So with a spool, both tires spin at the same time, same rate, etc. all the time? Is it even possible to cruise on the street with a spool and no ABS? Thanks everyone for your help so far.
Originally Posted by BlackBeaSSt
Is it even possible to cruise on the street with a spool and no ABS? Thanks everyone for your help so far.
Thread Starter
9 Second Club NA
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From: Houston, TX
So if I order the rear with no ABS, does that mean its not going to have ABS in the rear or no ABS at all? If none at all, I might as well remove everything that has to do with ABS because it will be useless and extra weight. How do I remove ABS? Also, will I still have the emergency/parking brake with a rear with a spool and no ABS? Thanks.
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Joined: Jun 2002
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From: H-town
Originally Posted by Turo
do they make lockers for the 12 bolt? all i see the sponsors selling are posis or spools.
Originally Posted by BlackBeaSSt
So if I order the rear with no ABS, does that mean its not going to have ABS in the rear or no ABS at all? If none at all, I might as well remove everything that has to do with ABS because it will be useless and extra weight. How do I remove ABS? Also, will I still have the emergency/parking brake with a rear with a spool and no ABS? Thanks.
I would like to know about what he asked also....... I am looking at a spool and i see alot of people driving them on the street. I hear freeway driving isnt to bad... its just the big slow turns that you can feel and that eat up the tires.... True?
Thanks
Kyle
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From: H-town
yup, your tires will get eating up pretty quick if you do a lot of slow turning. also in the rain, you really have to watch the turns since there is no slippage, could loose control pretty easy. and if you are really planning on doing it, dont do it with stock axle shafts. main reason is because you will have a higher chance of breaking one, and when you break an axle on a spool, you got your self a very nasty hard right/left turn since you will still have power to the remainding axle. i have seen people hit the wall like this.
Originally Posted by taqwache
GM has offered lockers for some time. i got one in my 96 Z71 and in my 2002 camaro. It is also an option on most of there trucks. they offer it for almost every axle out there.
i don't have any experiece with gm trucks but, cars (f-bodies)
the only optional posi used (that i know of) was the base torsen.
this is not a locker...
