Open Diff

[Jack Russo]

After loosing my GN in an accident many years ago, i've been looking around for another. I have seen a few, some fakes, some dirty dogs, and today saw the first nice one.
This one has about 35,000 miles and is in mint condition. 100% stock. 2 owners.
The one thing is that it doesn't have a posi rear. It lacks the g80 code on the RPO, so it's an open differential.
Question is, should this deter me from making an offer?
I know the differences between an open and a posi, but does performance hurt? how is the open? Ive never actually seen a non posi until today.
Also, does it lower the value of the car?
Thanks!

 

[1KWIKV6]

My GN that I purchased new in Dec 86 had an open end rear. Picked up a rebuilt center section in 87 and had it installed. 121,000 miles later and no issues to this day . I don't think it devalues the car much in fact it probably may add something because it likely was never raced .

 

[Jack Russo]

Cool. Thanks, this car is very nice and seems to have been babied. Was it a big job to swap?
Did you notice a difference in performance with the posi compared to the open?
Thanks again!

 

[nonosv6]

More traction with a posi unit. Both rear wheels spinning as opposed to one. I have a stock posi unit that I might sell if ur looking for one. Joel.

 

[nonosv6]

And as long as you use the same gears and put everything back the way it came out ,u can swap it fairly easy.

 

[GNRick]

Mine is on Ebay right now. Open diff and t-tops. Only 26k miles and very close to mint. A/C doesn't work but new tires helps to make up for it! http://cgi.ebay.com/ebaymotors/1986...9913391?pt=US_Cars_Trucks&hash=item20d0ac68af

 

[novaderrik]

a posi isn't the way to go for anything you will ever drive in the winter time- unless you like the idea of getting stuck in an inch of snow because your tires just spin- but it's the way to go for summer time...