Limited Slip, one legger, or posi?
#1
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Limited Slip, one legger, or posi?
I put my 87 camaro up on blocks today, and i turned the Drum brakes in the back, and the other drum brake turned the opposite way. I had my friend hold the other side, while i turned mine, and the same thing happened. Does this mean i have a limited slip rear end, or possibly posi?
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#2
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Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
When one wheel turns forward and the other turns backward you have an open differential. You could still have a locking diff (Gov-lock). It will lock the diff when one wheels starts to spin but you can't do it by spinning the wheels by hand.
If you turn one wheel forward and the other also turns forward then it's a true posi. The clutches hold the spiders allowing both to turn at the same speed. When you go around a corner, friction allows one wheel to turn faster than the other overcoming the friction of the clutches.
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and check out the race car
87 IROC-Z SuperPro ET Bracket Race Car
461 naturally aspirated Big Block
Best ET on a time slip: 11.242 altitude corrected to 10.89
Best MPH on a time slip: 121.52 altitude corrected to 125.89
Altitude corrected rear wheel HP: 497.9
Best 60 foot: 1.546
Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association
87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley
If you turn one wheel forward and the other also turns forward then it's a true posi. The clutches hold the spiders allowing both to turn at the same speed. When you go around a corner, friction allows one wheel to turn faster than the other overcoming the friction of the clutches.
------------------
Follow my racing progress on Stephen's racing page
and check out the race car
87 IROC-Z SuperPro ET Bracket Race Car
461 naturally aspirated Big Block
Best ET on a time slip: 11.242 altitude corrected to 10.89
Best MPH on a time slip: 121.52 altitude corrected to 125.89
Altitude corrected rear wheel HP: 497.9
Best 60 foot: 1.546
Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association
87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley
#3
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Car: Take
Engine: Your
Transmission: Pick
Usually, that indicates that you have an open rear (peg-leg), however, you could have a posi, and the clutches are burnt alowing them to slip, even w/ the pre-load springs (like Stephen touched apon), but a burnt posi is as worthless as an open rear, so you may as well say its an open.
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'87 Trans Am
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------------------
FREE CARFAX Record Check
If you live in Southeastern US, check us out!
South East Thirdgen
GM Master Tech
ASE Master Tech + L1
Savannah, GA
'87 Trans Am
S/D TPI retrofit including functional PassKey,
22# injectors,
Whatever chip I feel like burning,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
SSM SFC, KYB Shocks, Boxed LCAs, Wonder Bar,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
3.73 Posi
4wheel Disc Brakes
Summit 1-5/8" headers, 2.5" Dynomax catback.
Best 1/8: 9.519@72.74
'97 Bonneville SSE
#4
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Car: 84 Z-28 Camaro
Engine: 383
Transmission: T-56
Axle/Gears: richmond 3.73, eaton posi
was the car in nuetral(sp?)if both tires spin in the same direction you have posi. if you spin the tire and the driveshaft spins OR the other tire spins in the OPPSIDE(sp?)direction you have an open rear hope I cleared some confusion up.
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