Lsd
12-14-01, 01:52 PM
#2
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Are you sure you even have an LSD. Your car might not have come with one or else it could have been broken or taken out by the previous owner. Jack up the rear and find out if there is one by spinning one wheel.
12-14-01, 02:15 PM
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I have seen many different stories as to whether 1989-91 GXLs had an LSD. Mine is a 1990, and I leave 2 marks when I do a burnout, but I've been told I do not have an LSD. If I jack up the back and spin one, what should the other one do or not do to determine if I have an LSD? Thanks.
12-14-01, 02:32 PM
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When I was in tech school, my friend bought a Chevy LSD from a junkyard for his brother's truck. When we checked it out and spun one side, the other side spun in the opposite direction, like a normal diff. We complained, but the guys at the yard said that LSDs only put power to both wheels if the wheels are on unequal traction surfaces.... There is a type of clutch in there, isn't it? Beats me....
12-14-01, 02:36 PM
#7
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Originally posted by Josh
I thought all 89+ GXLs had it. I'll check.
I thought all 89+ GXLs had it. I'll check.
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12-14-01, 08:20 PM
#8
Former Moderator. RIP Icemark.
The series 5 cars only had the LSD on the T2 and the GTUs. It did not come on the GXL, GTU or coupe (with the exception of a very small amount of 91 coupes that had both leather and the 4 pot front brakes).
Not having a LSD doesn't mean you can't do burnouts with both rear tires. When both rear tires are spinning, that just means you have a lack of traction.
All a LSD does is makes it so that if one tire is spinning, then the engine doesn't send all its power to that spinning tire, but trys to send it to both.
There are two types of LSD used in the 2nd Gen cars. The series 4 cars got the clutch type LSD. The few series 5 cars that got it, got the fluid type. There is nothing to wear out in the fluid type other than the actual diff oil.
The Chevy/GM clutch type that is mentioned above is the most common pre '90s LSD.
The Fluid types are difficult to test, as they need to see one wheel not moving (or moving considerably slower than the other) for the fluid to lock the diff.
Not having a LSD doesn't mean you can't do burnouts with both rear tires. When both rear tires are spinning, that just means you have a lack of traction.
All a LSD does is makes it so that if one tire is spinning, then the engine doesn't send all its power to that spinning tire, but trys to send it to both.
There are two types of LSD used in the 2nd Gen cars. The series 4 cars got the clutch type LSD. The few series 5 cars that got it, got the fluid type. There is nothing to wear out in the fluid type other than the actual diff oil.
The Chevy/GM clutch type that is mentioned above is the most common pre '90s LSD.
The Fluid types are difficult to test, as they need to see one wheel not moving (or moving considerably slower than the other) for the fluid to lock the diff.
12-14-01, 08:42 PM
#9
Originally posted by Icemark
The series 5 cars only had the LSD on the T2 and the GTUs. It did not come on the GXL, GTU or coupe (with the exception of a very small amount of 91 coupes that had both leather and the 4 pot front brakes).
The series 5 cars only had the LSD on the T2 and the GTUs. It did not come on the GXL, GTU or coupe (with the exception of a very small amount of 91 coupes that had both leather and the 4 pot front brakes).
Last edited by JerryLH3; 12-14-01 at 09:01 PM.
12-15-01, 10:55 AM
#11
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An easy way to determine if you have lsd is to find a stop sign with a loose surface (small gravel chunks on the road or something like that)
dont "drop" the clutch but take off and cut the wheel hard so your inside wheel would naturally get loose and spin. If your car starts shaking and bouncing you out of your seat...well...that is lsd. if you dont have it your inside wheel will just squeel like a bitch (might just hiss depending on your tread)
Justin
dont "drop" the clutch but take off and cut the wheel hard so your inside wheel would naturally get loose and spin. If your car starts shaking and bouncing you out of your seat...well...that is lsd. if you dont have it your inside wheel will just squeel like a bitch (might just hiss depending on your tread)
Justin
12-17-01, 02:09 PM
#12
Rotary Enthusiast
Originally posted by Icemark
The series 5 cars only had the LSD on the T2 and the GTUs. It did not come on the GXL, GTU or coupe (with the exception of a very small amount of 91 coupes that had both leather and the 4 pot front brakes).
Not having a LSD doesn't mean you can't do burnouts with both rear tires. When both rear tires are spinning, that just means you have a lack of traction.
All a LSD does is makes it so that if one tire is spinning, then the engine doesn't send all its power to that spinning tire, but trys to send it to both.
There are two types of LSD used in the 2nd Gen cars. The series 4 cars got the clutch type LSD. The few series 5 cars that got it, got the fluid type. There is nothing to wear out in the fluid type other than the actual diff oil.
The Chevy/GM clutch type that is mentioned above is the most common pre '90s LSD.
The Fluid types are difficult to test, as they need to see one wheel not moving (or moving considerably slower than the other) for the fluid to lock the diff.
The series 5 cars only had the LSD on the T2 and the GTUs. It did not come on the GXL, GTU or coupe (with the exception of a very small amount of 91 coupes that had both leather and the 4 pot front brakes).
Not having a LSD doesn't mean you can't do burnouts with both rear tires. When both rear tires are spinning, that just means you have a lack of traction.
All a LSD does is makes it so that if one tire is spinning, then the engine doesn't send all its power to that spinning tire, but trys to send it to both.
There are two types of LSD used in the 2nd Gen cars. The series 4 cars got the clutch type LSD. The few series 5 cars that got it, got the fluid type. There is nothing to wear out in the fluid type other than the actual diff oil.
The Chevy/GM clutch type that is mentioned above is the most common pre '90s LSD.
The Fluid types are difficult to test, as they need to see one wheel not moving (or moving considerably slower than the other) for the fluid to lock the diff.
12-17-01, 05:56 PM
#13
Former Moderator. RIP Icemark.
Originally posted by Hot_Dog
Don't know where you got your information about a limited number of 91 coupes having LSD, but it wasn't from a Mazda source. For 1991, the only car that Mazda lists as having LSD as standard equipment is the TII model.
Don't know where you got your information about a limited number of 91 coupes having LSD, but it wasn't from a Mazda source. For 1991, the only car that Mazda lists as having LSD as standard equipment is the TII model.
Now they could have been retrofits, but I doubt it unless they replaced every bolt as well, not one was marked as being removed and re-installed as will often happen on taking apart any car.
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