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Discussion Starter · #1 ·
I had the 2.73's taken out of my 95 Gt 5 speed today and had 3.73's put in.I noticed on the way home on the highway my car was at about 2900 to 3000 rpm at 80 mph does this sound right?I drive a mix of highway and city mostly everyday were these a good choice?I had my mind set on 3.55's but when i got to the shop i was talked into the 3.73's!thanx
 

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Did they change the speedo gear to correct the speedmeter? That rpm sounds a bit high.
With 3.73's at 80 I'm running around 2700 rpms, that is with the speedo corrected, 7 tooth internal drive gear and 21 tooth.
You will need a 23 tooth gear to get close, within 5%.
 

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Discussion Starter · #3 ·
I am just looking over my receipt and yes a 23 tooth speedo gear was installed.I am going to take it for a blast on the highway in a little while to re-check the rpm's!
 

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Discussion Starter · #4 ·
You are absolutely correct i just got back.I took a nice run on the highway to JFK(airport)and back and at 80 mph the tach was reading right at 2600,2700 rpm!I wonder why some guy on stangnet.com with a 95Gt says i should be at 3000 at 80!Anyway now iam happy 3000 would be a bit much at that speed!thanx
 
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