Yes both are the same size, because some crashed gts had 83 while others had 82.I’m still confused because something doesn’t seem to add up.
It doesn’t make sense sport models didn’t come with an lsd but it does make sense that 82 is an lsd option otherwise the used market I don’t think would price it at that large of a premium over the 83. And I’m still not sure how to locate a 4.1 ring and pinion from a Quattroporte gt s which seems to be the same part number or why it would be a different ratio with the same part number if it is a different ratio than sport models at all.
my sources have been parts suppliers like scuderia and car and driver cross referenced against other websites. But something here or there is wrong. Maybe final drive ratio has to do with the manufacturer part number on the diff I’ve found a couple different ones like 3.33950.3, 3.51331.3 and not the part numbers we are discussing. Randy do you have any input on that how did you differentiate amongst ratio? That you referenced above. You also said both 82 and 83 in your research are the same external measurements is that correct?
I’ve also found another part number that some other website claim are relevant for certain years GranTurismo and Quattroporte 234007.
I will get my car on a lift in the next couple of days to see the part number it has and I will test for lsd by spinning the rear tires while in the air. So we can start to narrow it down a bit more and start to confirm some of this online info. Maybe we can get some clarification from the Quattroporte GT S owners as well.
Part details for Maserati 270982 - Differntial Assembly. Comprehensive original spare parts diagrams and information with ordering and international shipping for all modern luxury and performance models from Ferrari, Maserati, Lamborghini, Porsche, Aston Martin, Bentley and Audi.www.scuderiacarparts.com
Part details for Maserati 270983 - DIFFERENTIAL ASSEMBLY. Comprehensive original spare parts diagrams and information with ordering and international shipping for all modern luxury and performance models from Ferrari, Maserati, Lamborghini, Porsche, Aston Martin, Bentley and Audi.www.scuderiacarparts.com
2011 Maserati Quattroporte Sport GT S 4dr Sdn Quattroporte features and specs at Car and Driver. Learn more about Price, Engine Type, MPG, and complete safety and warranty information.www.caranddriver.com
I also verified by spinning one wheel, the other goes the same direction.
And I spoke to about 5 dealers, all had different prices but the two superseded part numbers are ending in 82 and 83.
You can get the part number and ratio on the side of the diff. Jack up passenger rear and it is engraved on the side. Look near the front mount. Top of diff is the ratio number not part, but it is also listed on the side with the part number.