Living la vida loca!
AO Silver Member
Join Date: Jul 2005
Sorry to say, no LSD available in the range. I have a late 24v Super/QV box in my car I bought brand new from OK Parts and it is valid for both the QV and V6 Super, there is absolutely no difference between boxes. The 12v cars I believe had different ratios but no LSD.
The only 164 that did have a limited slip diff was the Q4 'Viscomatic' but no retro fit available unless you are very brave. The box in that car was a Getrag 'non maintenace' 6 speed box with no LSD either. The centre diff was a viscous coupled diff positioned in the centre and electrónically controlled via the Viscomatic ECU that used throttle angle, steering input data, ABS and ECU data to make necesary adjustments to the traction. A 250 kilo extra that makes the Q4 sluggish to the say the least.
But you can retro fit the Q2 diff into a 164 box although you will need to take make modifications to the cog/wheel that runs the speedo mechanism in order to have a working speedo. Quaife also make a direct fit diff for the 164 but I believe people who have installed one say that it is a bit 'lumpy' when manouvering. Might be OK for your Montecarlo although I would use the 24v box for sure as it has the stronger roller bearings and tends to be a much sturdier box on the whole.
Past glories: Sud 1.5ti, Alfetta GTV, GTV6, 33 1.5ti, 33 1.7ie, 164 3.0 V6, 164 3.0 V6, GTV 1.8TS, 156 1.6 TS.
Now: 159 2.4 JTDm QTronic, 164 V6 24v Zender Alfa Sport, Ford Mondeo 2.0 TDCi (Mothership).