how do i go from limited to posi?

91cobra5.0 · March 7th, 2008, 10:45 PM

isnt there something that can lock the spyder gears together?

ryans88gt · March 7th, 2008, 10:55 PM

A mini spool?

91cobra5.0 · March 7th, 2008, 10:58 PM

lol iono u tell me, isnt there some type of locker?

e3sean · March 7th, 2008, 11:38 PM

a welder

lol or just find someone to build the clutches real tight..

91cobra5.0 · March 7th, 2008, 11:46 PM

how reliable is the welder? ive heard that ghetto rigged way b4

dag545 · March 8th, 2008, 12:49 AM

A mini spool or full spool to lock the axles up (and go chirping around every corner you come up to. lol) or a Detroit Locker. I would do a locker if you have the money.

teal89 · March 8th, 2008, 01:20 AM

I'd have to go with a mini spool. Don't ghettofy your rear end with welds that will not hold up to the power you might plan in the future. If those welds break, so does your rear end. I'd just spend the 130 bucks from jegs for a spool and get it done right the first time if you want to lock up both tires. Hell now a days, the whole differential can run you about $375.00 for a good street one. if you like spending money, get a richmond diffy that runs $700 and never worry about your "rear-end"

Black Five 0h · March 8th, 2008, 04:32 AM

i welded the spyder gears on my woods beater 89 blazer and they never broke and i beat the piss out of it but it would be diff if you were making good power

tom2000r · March 8th, 2008, 06:58 AM

Originally Posted by teal89

I'd have to go with a mini spool. Don't ghettofy your rear end with welds that will not hold up to the power you might plan in the future. If those welds break, so does your rear end. I'd just spend the 130 bucks from jegs for a spool and get it done right the first time if you want to lock up both tires. Hell now a days, the whole differential can run you about $375.00 for a good street one. if you like spending money, get a richmond diffy that runs $700 and never worry about your "rear-end"

look on ebay-----8.8 posi unit

1slo5.0 · March 8th, 2008, 07:17 AM

To answer the original question.........limited slip, posi, traction lock and sure grip are all the same thing. Posi is not an upgrade of limited slip. Posi is limited slip. The only way to have a fully locked rear end is with a spool or an air locker.

tom2000r · March 8th, 2008, 08:32 AM

Originally Posted by Darrell

To answer the original question.........limited slip, posi, traction lock and sure grip are all the same thing. Posi is not an upgrade of limited slip. Posi is limited slip. The only way to have a fully locked rear end is with a spool or an air locker.

there showing some lockers on ebay ...8.8 posi unit

ThreeHonks302 · March 8th, 2008, 08:42 AM

Posi Trac is just GM's name for limited slip... Ford calls theirs Trac-Lok They are both limited slip and do the same thing, just different names

91cobra5.0 · March 8th, 2008, 10:13 AM

eBay Motors: Mini Steel Spools Ford 8.8 / 28 Spline 8620 Steel (item 160184852565 end time Mar-25-08 09:44:15 PDT)

is this what you guys are talking about? what is the spline count for, and this just goes in place of the spider gears right?

trueblue01 · March 8th, 2008, 11:26 AM

28 spline is stock. If I remember correctly, you need an "open" center section to install a mini spool. If you have a limited slip unit, you will have to come up with an open center as well.

91cobra5.0 · March 8th, 2008, 11:35 AM

jezzz this is sounding like a headache

trueblue01 · March 8th, 2008, 11:49 AM

Why the interest in "lockers"? The factory unit is normally more than adequate unless your getting real serious about more HP and drag racing. I run a full spool on the street with ET Streets and don't have any real issues with dry roads. As for wet roads, they suck. A good rebuild kit in the stock unit should work well and it will have better street manners. I raced a stock unit for a couple of years running high 12's with 1.60 60 foot times and had no problems and that was using ET Streets. Never ended up with the dreaded "one wheelie peelie".

rodthrower2.3T · March 8th, 2008, 01:05 PM

alot of people just take out a shim and add more clutches when they rebuild it

Iwannagofast · March 8th, 2008, 01:48 PM

im pretty sure a good rebuild for the stock tlock will be fine for what you are wanting man

teal89 · March 9th, 2008, 12:40 AM

Originally Posted by 91cobra5.0

jezzz this is sounding like a headache

Don't focus so much on one thing, that's why it's a headache, not to mention 9 people told you 9 different things. You're wondering about locking the wheels so you won't be embarrased at the track with that "daisy-wheel" burnout. SO it's determined that POSI-trak, limited slip and those other fancy pants marketing names come out to be the same right? So your concern is, HOW TO MAKE BOTH DAMN WHEEL SPIN!!!. Just pick up a jegs mag or summit, look for a mini-spool or an actual diofferential for 87-93 stangs, place your order, get your order and install or take it to a shop and have them do it. Do worry about if it will work, the description in this case will say 87-93 stang lx/gt or LX or GT. Look for your model and have no fear. Splines? 28sp will be just fine

Iwannagofast · March 9th, 2008, 01:04 AM

keep in mind a spool keeps both wheels locked constantly......if you go around a curve they will spin at the same speed instead of have one spin slightly slower than the other

March 7th, 2008, 10:45 PM	#1
91cobra5.0 Hardcore Enthusiast 98 Cobra Join Date: Jan 2008 Location: Bay Area, Ca Posts: 2,057 iTrader: 0 reviews	how do i go from limited to posi? isnt there something that can lock the spyder gears together?

March 7th, 2008, 10:55 PM	#2
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 4,737 iTrader: 0 reviews	A mini spool? __________________ 88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it

March 7th, 2008, 11:38 PM	#4
e3sean I Post Entirely Way Too Much 1988 lx 9.68@142 Join Date: Nov 2007 Location: goldsboro NC Posts: 5,609 iTrader: 0 reviews	a welder lol or just find someone to build the clutches real tight.. __________________

March 8th, 2008, 01:20 AM	#7
teal89 Enthusiast 89 Mustang Lx Join Date: Feb 2008 Location: Rockwall, Texas Posts: 527 iTrader: 0 reviews	I'd have to go with a mini spool. Don't ghettofy your rear end with welds that will not hold up to the power you might plan in the future. If those welds break, so does your rear end. I'd just spend the 130 bucks from jegs for a spool and get it done right the first time if you want to lock up both tires. Hell now a days, the whole differential can run you about $375.00 for a good street one. if you like spending money, get a richmond diffy that runs $700 and never worry about your "rear-end" __________________ 94-95 306, B-Cam, Off-brand BBK Like Headers, H-Pipe, 3.73's, Nitrous Wet Shot 175 Shot

March 8th, 2008, 04:32 AM	#8
Black Five 0h Enthusiast 02 Mustang GT Cant wait to find out Join Date: Mar 2007 Location: Connecticut Posts: 567 iTrader: 1 reviews	i welded the spyder gears on my woods beater 89 blazer and they never broke and i beat the piss out of it but it would be diff if you were making good power __________________ 02 Mustang GT "We build it up, run it hard, we know whats breaking and we enjoy it breaking, we dump money into it, we re-build it stronger, run it harder in anticipation of it breaking again. We are sick individuals."

March 7th, 2008, 10:58 PM	#3
91cobra5.0 Hardcore Enthusiast 98 Cobra Join Date: Jan 2008 Location: Bay Area, Ca Posts: 2,057 iTrader: 0 reviews	lol iono u tell me, isnt there some type of locker?

March 7th, 2008, 11:46 PM	#5
91cobra5.0 Hardcore Enthusiast 98 Cobra Join Date: Jan 2008 Location: Bay Area, Ca Posts: 2,057 iTrader: 0 reviews	how reliable is the welder? ive heard that ghetto rigged way b4

March 8th, 2008, 12:49 AM	#6
dag545 Regular 1995 Mustang GT N/A Join Date: Dec 2007 Location: Virginia Posts: 102 iTrader: 0 reviews	A mini spool or full spool to lock the axles up (and go chirping around every corner you come up to. lol) or a Detroit Locker. I would do a locker if you have the money.

March 8th, 2008, 07:17 AM	#10
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	To answer the original question.........limited slip, posi, traction lock and sure grip are all the same thing. Posi is not an upgrade of limited slip. Posi is limited slip. The only way to have a fully locked rear end is with a spool or an air locker. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

March 8th, 2008, 08:42 AM	#12
ThreeHonks302 Regular Trans Am WS6 Join Date: Jan 2008 Location: Michigan Posts: 288 iTrader: 0 reviews	Posi Trac is just GM's name for limited slip... Ford calls theirs Trac-Lok They are both limited slip and do the same thing, just different names

March 8th, 2008, 10:13 AM	#13
91cobra5.0 Hardcore Enthusiast 98 Cobra Join Date: Jan 2008 Location: Bay Area, Ca Posts: 2,057 iTrader: 0 reviews	eBay Motors: Mini Steel Spools Ford 8.8 / 28 Spline 8620 Steel (item 160184852565 end time Mar-25-08 09:44:15 PDT) is this what you guys are talking about? what is the spline count for, and this just goes in place of the spider gears right?

March 8th, 2008, 11:26 AM	#14
trueblue01 Enthusiast 1989 Mustang LX 10.98@126.7 NA Join Date: Feb 2008 Location: N.E. Ohio Posts: 698 iTrader: 0 reviews	28 spline is stock. If I remember correctly, you need an "open" center section to install a mini spool. If you have a limited slip unit, you will have to come up with an open center as well. __________________ Never fast enough.

March 8th, 2008, 11:35 AM	#15
91cobra5.0 Hardcore Enthusiast 98 Cobra Join Date: Jan 2008 Location: Bay Area, Ca Posts: 2,057 iTrader: 0 reviews	jezzz this is sounding like a headache

March 8th, 2008, 11:49 AM	#16
trueblue01 Enthusiast 1989 Mustang LX 10.98@126.7 NA Join Date: Feb 2008 Location: N.E. Ohio Posts: 698 iTrader: 0 reviews	Why the interest in "lockers"? The factory unit is normally more than adequate unless your getting real serious about more HP and drag racing. I run a full spool on the street with ET Streets and don't have any real issues with dry roads. As for wet roads, they suck. A good rebuild kit in the stock unit should work well and it will have better street manners. I raced a stock unit for a couple of years running high 12's with 1.60 60 foot times and had no problems and that was using ET Streets. Never ended up with the dreaded "one wheelie peelie". __________________ Never fast enough.

March 8th, 2008, 01:05 PM	#17
rodthrower2.3T Regular 88 TurboChicken 8.40/83.4 Join Date: Sep 2007 Location: hobart, IN~W.Lafayette@Purdue Posts: 148 iTrader: 0 reviews	alot of people just take out a shim and add more clutches when they rebuild it

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