youngmonte71 Posted October 13, 2010 Share Posted October 13, 2010 In a 71 monte with a 350 turbofire engine 350 turbo tranny and a 12bolt rear end what is the gear ratio in the rear end? Quote Link to comment Share on other sites More sharing options...
Canuck Posted October 13, 2010 Share Posted October 13, 2010 A 273 rear end was very common for A 350/350 Car. Quote Link to comment Share on other sites More sharing options...
Chevyss Posted October 13, 2010 Share Posted October 13, 2010 That's what was in my Monte when I first got it. Quote Link to comment Share on other sites More sharing options...
stangeba Posted October 13, 2010 Share Posted October 13, 2010 2.73 in mine. Bruce Quote Link to comment Share on other sites More sharing options...
ThirdMC Posted October 13, 2010 Share Posted October 13, 2010 Look under the Tech Info section. If nothing has been changed it will give you the codes to decipher your ratio. It's also on the build sheet if you're able to find it. Â Mine is also 2:73. Quote Link to comment Share on other sites More sharing options...
Heff Posted October 14, 2010 Share Posted October 14, 2010 Unless its a 4 speed or powerglide transmission, or an ss car it would be a 2.73, although it could be ordered as a posi Quote Link to comment Share on other sites More sharing options...
TommyP Posted October 14, 2010 Share Posted October 14, 2010 My 12 bolt also had 2.73 gears. Quote Link to comment Share on other sites More sharing options...
Mike 57 Posted October 14, 2010 Share Posted October 14, 2010 Mine was originally a 402 th400 with a 2.73 open Quote Link to comment Share on other sites More sharing options...
Ian Posted October 14, 2010 Share Posted October 14, 2010 I now have 3.42's and a Posi Quote Link to comment Share on other sites More sharing options...
Mike 57 Posted October 14, 2010 Share Posted October 14, 2010 Needless to say mine is not a 2.73 open anymore either! Quote Link to comment Share on other sites More sharing options...
monte70car Posted October 14, 2010 Share Posted October 14, 2010 Mine still sports the org. 2.73 gears but with a power trax unit gets about 16mpg with a big block and a 700r4. Quote Link to comment Share on other sites More sharing options...
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