1989 GT gear question

Billy the Kid · 10-11-2009, 02:54 PM

I currently have 4.10's but dont want them anymore. I have an AODE trans and want to drive the car more as a street strip car not strip only. Should i stay with a stock gear off 3.55 or use 3.73? What would be the difference between the two?

Rick@cjponyparts · 10-12-2009, 09:29 AM

3.73s would be about 200 RPMs less at 70 mph and 3.55s would be another 100 rpm less.

Tyler5.0 · 10-23-2009, 01:47 PM

Quote:

Originally Posted by Billy the Kid

I currently have 4.10's but dont want them anymore. I have an AODE trans and want to drive the car more as a street strip car not strip only. Should i stay with a stock gear off 3.55 or use 3.73? What would be the difference between the two?

I would say go with the 3.73s my friend has them on his 93 5.0 and there great the acceleration is much improved.

Good luck with your gears!

Joe@cjponyparts · 11-03-2009, 03:19 PM

3.55 and 3.73 are both a good rear axle ratio but i think if the car is going to be at the track on occasion i would go with the 3.73

10-11-2009, 02:54 PM	#1
Billy the Kid Junior Member Join Date: Nov 2007 Posts: 4	1989 GT gear question I currently have 4.10's but dont want them anymore. I have an AODE trans and want to drive the car more as a street strip car not strip only. Should i stay with a stock gear off 3.55 or use 3.73? What would be the difference between the two?

10-12-2009, 09:29 AM	#2
Rick@cjponyparts CJ Pony Parts Moderator Join Date: Oct 2006 Location: Harrisburg, PA Posts: 1,775	3.73s would be about 200 RPMs less at 70 mph and 3.55s would be another 100 rpm less. __________________ Rick - Purchasing 93 Calypso Green LX Built 306, MM suspension bits and 5 lug Disc Brakes 90 Black on Black GT Basic bolt-ons

11-03-2009, 03:19 PM	#4
Joe@cjponyparts CJ Pony Parts Employee Join Date: Oct 2009 Location: WILLIAMSTOWN,PA Posts: 3	3.55 and 3.73 are both a good rear axle ratio but i think if the car is going to be at the track on occasion i would go with the 3.73