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VIPER HUNTER
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835 Posts
Discussion Starter #1
OK SEARCHED IT!

what is the rear gear ratio in the 89 turbos.and the non turbos,

I always always under the impression that the turbos had 3:73 gears in them,is this true.???

If so if i ran 275 50s 17s on the back what would that make my final drive?How much would that change.
 

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No One Ever Listens To Me
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5,467 Posts
err i wanna say 3.79 for turbo and 4.10 for NA....im also thinking they changed during a year or something..... im sure someone will chime in and give the yeah thats right or no youre an idiot response :)
 

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ma70-7m=1JZ
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2,517 Posts
275/50 will be too big in the back, a 50 sieries tire will be like 4-5" tall, a 35 or 40 will look the best.
 

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VIPER HUNTER
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835 Posts
Discussion Starter #5
I know this,im getting the tires for free,im still waiting for the new ones to come,and the ones on there now (285 40 17s) are dead.So im mounting up the 275 50s just till the new ones come in.

just wanted to know on the gear ratios
 

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"DANNY TANNER!!!"
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1,847 Posts
i can tell you that with my 87 T stock rear end with 275/40./17 my speedo is off by 10 KPH, 6.25 MPH for you
 
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