Originally Posted by Kronix
Now that the 1LE has the 3:91 gears, I can't see why the dealer can't install then, while still maintaining the powertrain warranty, but then again like most have said I guess it depends on the dealer, but it's worth a shot.
You would think so and probably only for the manual and not auto since the 1LE only comes in manual
I had 3.73's installed in my 12 5.0 ( a factory option)and the dealer was cool about the overall powertrain warranty but if I had any issues with my rear end it would be on my dime...
Also make sure to find someone that knows what they're doing with gear installs. Ive had it done by so call experience professionals (one a dealer)and both times they made noise loud enough to hear over the radio.