'85 Pontiac Grand Prix 3.8 Differential Size and Rear Gear Swap?

[Shinobi68]

LS1/4L60E pairs really well with 3.42 gears.

3.42s it is then.

 

[64nailhead]

LS1/4L60E pairs really well with 3.42 gears.

And sucks with 3.08 or 2.__.

 

[ck80]

Thanks for the reply. I’m not on here much, we have several g body projects..
I’d be down for a weekend road trip. I have a 3:08 but with the 406 on the way I need more gear. I’m committed to car shows the next 2 weekends but after that I can drive down.. let me know..

No promises yet, but, it's "possible" I may be buying a wrecked GTA to use for parts in Navarre FL. If I can strike a deal, that would save a good 4 hours off your trip, if you were still interested.