1999 SS

iTrader: (3)

is there a ratio between a 3:73 and a 4:11 for a 12 bolt rear?

ls1mongrel

iTrader: (32)

3:90 for the 12 bolt !

EPP

iTrader: (22)

3.90 is a $45.00 option from Moser for the 12 bolt rears. Bob

Shamson5.7

iTrader: (5)

Go 4.11 and never look back

chicane

3.90's rock.

I didnt want to go too deep and scrub MPH potential and didnt want to go too short and kill the shift recovery point.

A first gear ratio of right about 10.5:1 is perfect. This combo will yield 10.37:1...... 9.9 for the 3.73 and....... 10.9 for the 4.10.

1999 SS

iTrader: (3)

i had a 4.10 in the 10 bolt before i got the 12 but traction was an issue. sometimes the tires would let go going into third if i was driving hard. ive got a 12 bolt now and alot more power i went with 3.73's for traction but am kinda missing the punch the 4.10 had.

SStheBest

iTrader: (2)

when i purchase the 12 bolt..3.73 was what i was going with as well...thats just b/c i like highway drivin and 4.10 could get annyoing as hell

Technoman64

iTrader: (6)

I choose the 3.73's also and like them. Pulls great and still decent gas mpg. I want to go with a turbo or supercharger so I did not want to low of gear for that reason also.