3.23 3rd Member

[R0K3_B3aRd]

Yea i just bought a Open 3.23 3rd member for $175 to go into my 742 8 3/4 rearend housing. I was wondering should i get the suregrip or leave it as is. Putting it into my 65 cuda once i get a bigger engine. Also what does it mean by its open 3.23?? Im not racing or anything i just want a fast street car which is why I'm building the rearend. Thanks

 

[Andyz]

"Sure grip" is a 2 wheel drive under hard acceleration. "Open" is 1 wheel drive no matter how hard you drive. With a lower power car, I wouldn't worry about sure grip. A sure grip unit for a 742 case isn't cheap, so you may want to wait until you get more power and need it.

 

[amx364]

Funny thing is that the Suregrip does well on dry roads, but never use it on glare ice. Open rear can go to 50 without problems. A posi unit when you get above 10 tends to want to swap ends, under feather throttle conditions. They are good for a summer only car.

 

[Bad Sport]

Funny thing is that the Suregrip does well on dry roads, but never use it on glare ice. Open rear can go to 50 without problems. A posi unit when you get above 10 tends to want to swap ends, under feather throttle conditions. They are good for a summer only car.

I guess that may be true in a high performance situation, but I have owned and driven many older vehicles with the limited slip in the winter. Never had any issues.