hey guys this might get asked alot sorry i wanna know what diff ratio is in my vy v6 manual and what the best diff is to put in it for better off the line thanks heaps
Hey mate Best way to know if have a look under the car where the diff is and on the diff near the fill plug i think it is there will be a sticker which stats the diff ratio Pretty sure its 3.08 most are also Non LSD on the V6's
for a manual vy it will be 3.46 even if its not an lsd... pretty common ones are 3.9 and 4.11 i believe from what i've read 3.70 is a nice compromise between acceleration and highway effeciency but they arent a common gear
depends where you get them and what state they are in really... you could get a brand new set from a diff place or a second hand set out of a wreckers
If your going with 3.73's or 3.9's go with genuine gears only. They wont whine if installed correctly by a reputable diff builder, the cheaper gears have a tendency to whine regardless. IMHO the difference between RPM @ 100km/h with 3.7s or 3.9s is pretty minimal, so go the 3.9's, you'll love it. Both gear sets came standard in VX HSV's (clubby 3.7s and gts 3.9's)
