Which gears are in my car?

red01 · October 31st, 2010, 11:57 AM

been having a debate with a friend about which gears are in my car, no doubt the car has gears but which gear is the question. We did the turn the driveshaft thing and came out with 3.55's. I think they are more like 3.73's, she just jumps up to hard for 3.55's. When i got the car the speedo was off by about 30mph, I put in a speedo gear for 3.73's and now its reads about 5mph to fast. in first gear the car is at about 3200rpm's at 20mph, cruising at 70 in 5th the car is at about 2600rpm's. Any ideas?

BAD98GT · October 31st, 2010, 03:36 PM

you got 3.55.

tfofkyle · October 31st, 2010, 07:47 PM

70 in 5th at 2600 rpms doesnt sound right to me. im at 2510 rpms at 70 in 5th with 4.10s corrected via dm speedcal.

KV007 · October 31st, 2010, 07:53 PM

what. with my 4.10s im at like 2600 rpms in 5th

red01 · October 31st, 2010, 09:23 PM

Maybe my tach is off? I have a shift light and it matches what the tach is reading.

October 31st, 2010, 11:57 AM	#1
red01 Regular Join Date: Jun 2006 Location: Central Florida Posts: 330 iTrader: 0 reviews	Which gears are in my car? been having a debate with a friend about which gears are in my car, no doubt the car has gears but which gear is the question. We did the turn the driveshaft thing and came out with 3.55's. I think they are more like 3.73's, she just jumps up to hard for 3.55's. When i got the car the speedo was off by about 30mph, I put in a speedo gear for 3.73's and now its reads about 5mph to fast. in first gear the car is at about 3200rpm's at 20mph, cruising at 70 in 5th the car is at about 2600rpm's. Any ideas? __________________ 1997 Mustang GT 04 PI 2V, bolt ons, gears, tune 255/292 www.covertmotorsports.net

October 31st, 2010, 07:47 PM	#3
tfofkyle Hardcore Enthusiast 02 Mustang GT Join Date: Dec 2009 Location: SE Michigan Posts: 1,682 iTrader: 0 reviews	70 in 5th at 2600 rpms doesnt sound right to me. im at 2510 rpms at 70 in 5th with 4.10s corrected via dm speedcal. __________________

October 31st, 2010, 07:53 PM	#4
KV007 Hardcore Enthusiast 2003 Mustang Gt Slow Join Date: Jul 2009 Location: redding,california Posts: 2,532 Blog Entries: 2 iTrader: 2 reviews	what. with my 4.10s im at like 2600 rpms in 5th __________________ 409rwhp at 4500 rpms.Vortech V1 Intercooled,kurgan motorsports powerpipe, 3.12 pulley, all Mac Exhaust,Sct Tuner,Bolt Ons,Cobra Brakes,MM cc plates,Vis 2000 cobra r hood,MGW shifter,Strange 31 Spline axles,Eaton Possi

October 31st, 2010, 09:23 PM	#5
red01 Regular Join Date: Jun 2006 Location: Central Florida Posts: 330 iTrader: 0 reviews	Maybe my tach is off? I have a shift light and it matches what the tach is reading. __________________ 1997 Mustang GT 04 PI 2V, bolt ons, gears, tune 255/292 www.covertmotorsports.net

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October 31st, 2010, 03:36 PM	#2
BAD98GT Enthusiast Join Date: Feb 2010 Posts: 953 iTrader: 0 reviews	you got 3.55.

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