Hey Gang,
I'm trying to locate an LSD for my GT. I have read and have found only 3 types for the GT.
Quaife:
Plus: Supposedly the best for the Opel - much better than the ZF and in a different class than the Phantom Grip. Replaces weak spiders. No clutches to wear out. Proven. limited lifetime warranty.
Minuses: Costs new usually $1495, can be found for $1295 including shipping.
ZF:
Plus: Decent LSD unit. Replaces weak spiders. Note 40% locking.
Minus: Harder and harder to find, costing more and more, never know what condition the clutches are in or if the unit is shot. Also, if you're using gears 3.67 and up you need a 3.67 and up LSD unit, otherwise it won't fit. The cost of these units are now in the $550-900 range.
Phantom Grip:
Plus: It's cheap.
Minuses: Still uses the weak spider gears. $300-400.
My questions:
1) Does the Quaife make sense to buy at 1295 or is it better to take a risk and buy a ZF and not really know what you're getting?
2) I've heard of ZF coming in 75% locking but do these units fit the manta a/opel gt rear? Who rebuilds ZF units? Where can you buy a rebuild kit? Can you rebuild them with 75% lock?
3) Is the Quaife that much better than the ZF?
4) Because of the cheap cost of the Phantom Grip it seems like it can't be all that good of a unit. Not trying to condemn the unit, just skeptical. Almost sounds too good to be true. What's the opinions?
5) If anyone has a good used ZF or Quaife for a 3.67 ratio, I'm interested in buying. Let me know.
As always, thanks for the help,
Francis
I'm trying to locate an LSD for my GT. I have read and have found only 3 types for the GT.
Quaife:
Plus: Supposedly the best for the Opel - much better than the ZF and in a different class than the Phantom Grip. Replaces weak spiders. No clutches to wear out. Proven. limited lifetime warranty.
Minuses: Costs new usually $1495, can be found for $1295 including shipping.
ZF:
Plus: Decent LSD unit. Replaces weak spiders. Note 40% locking.
Minus: Harder and harder to find, costing more and more, never know what condition the clutches are in or if the unit is shot. Also, if you're using gears 3.67 and up you need a 3.67 and up LSD unit, otherwise it won't fit. The cost of these units are now in the $550-900 range.
Phantom Grip:
Plus: It's cheap.
Minuses: Still uses the weak spider gears. $300-400.
My questions:
1) Does the Quaife make sense to buy at 1295 or is it better to take a risk and buy a ZF and not really know what you're getting?
2) I've heard of ZF coming in 75% locking but do these units fit the manta a/opel gt rear? Who rebuilds ZF units? Where can you buy a rebuild kit? Can you rebuild them with 75% lock?
3) Is the Quaife that much better than the ZF?
4) Because of the cheap cost of the Phantom Grip it seems like it can't be all that good of a unit. Not trying to condemn the unit, just skeptical. Almost sounds too good to be true. What's the opinions?
5) If anyone has a good used ZF or Quaife for a 3.67 ratio, I'm interested in buying. Let me know.
As always, thanks for the help,
Francis