R34 Gtt Lsds - Do All The Manual Models Have The Helical Lsd?

[benl1981]

I take it the helical diff in the R34GTT manual is an improvement over the R33 gtst viscous LSD.

Were these in all the manual R34gtt's or only after a certain year model?

Has anyone had problems with these/comments?

Does it prevent the inner wheel spinning that occurs with tired VLSDs?

[simons987]

Correct me if I'm wrong but I thought the R34 GTT diffs are only Vicious and a popular upgrade is to buy a 34 GTR diff as it is helical and has a higher ratio.

[GTSBoy]

All I can say, having recently bought one from a manual (it was 4.11 ratio) that was viscous....they're not helical. That's if any were helical at all. The R34 sales brochure says the manuals are helical and the autos are viscous, but that may well have only been after a certain date. I certainly have never seen a helical yet, and I've been looking.

[Beer Baron]

yeah they are vicous. 34 GTRs are not helical. they are a clutch pack mechanical type LSD. or if v-spec they have an active LSD which is similar but governs the amount of slip using hydraulic pressure in the diff (with an electric pump).

best bet is just buy one of the many available mech LSD options out there. there are plenty in the $1000-$1500 range and even cheaper to buy second hand. or use a 32 GTR diff and buy a set of nismo clutch disks for it. should be less than $800 all up and it's as good as a brand new mech LSD.