I saw this question posted before,but I didnt here any AOD guys,just 5-speeds.Im putting in 3.73 this tues.(from 2.73),any feedback would really boost my moral!Thanks
AOD-2.73 to 3.73
- Thread starter willys1
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mike keirstead
New Member
You are going to be very very very happy. If its a strip car that gear change could shave .5 second off.
You are going to love it. I promise. Post back here when you get it done. I would like to here what you say.....I am happy for you. You will love it.
You are going to love it. I promise. Post back here when you get it done. I would like to here what you say.....I am happy for you. You will love it.
Thanks Bro,yea I will post dont worry!The only other big mod I have is a PI torque converter,this car should really come alive!!!!!!!!mike keirstead said:
Michael Yount
Mustang Master
Rear tire size (diameter) impacts speed vs. rpm; plus factory speedos and tachs are known to not be the most accurate. Also, the T-5's can have a .59, .63 or .68 5th gear ratio which also changes things. So if you're planning on trying to get closer than 100 or 200 rpm on aod vs 5 speed rpm/speed comparisons, it may be a waste of time.
mike keirstead
New Member
DUDE, I wont have my 3.73's till Tuesday,Im just going by what Ive read about the gears,so yes,an auto will do less RPM then a 5--speed!!!!!!!!!!5spd GT said:
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mike keirstead
New Member
Hi,
You'll really like the 3.73s. I chose them for several reasons:
Top speed in 3rd = 120 MPH @ 6200 RPM with my 255/40ZR17s which give 829 revs/mile.
2100 RPM @ 60 MPH in OD
3100 RPM @ 60 MPH in 3rd
A friend of mine had 4.10s and was running out of RPMs at the 1/4 so he had to go with a bigger diameter tire.
Most 5.0s can't rev. over 6200 due to valve float anyways. So with 3.73s a stall converter, good shift kit and good control arms you'll out lauch those 5 speeds
Good Luck, Don
You'll really like the 3.73s. I chose them for several reasons:
Top speed in 3rd = 120 MPH @ 6200 RPM with my 255/40ZR17s which give 829 revs/mile.
2100 RPM @ 60 MPH in OD
3100 RPM @ 60 MPH in 3rd
A friend of mine had 4.10s and was running out of RPMs at the 1/4 so he had to go with a bigger diameter tire.
Most 5.0s can't rev. over 6200 due to valve float anyways. So with 3.73s a stall converter, good shift kit and good control arms you'll out lauch those 5 speeds
Good Luck, Don
I know, I know you meant rpm's I just thought that was pretty radical(awsome!)mike keirstead said:
Thanks Don,yea,I forgot to mention Im getting a trans-go kit installed the same day,Thanks Ive been waiting for someone to tell me that!!gt90stang said:Hi,
You'll really like the 3.73s. I chose them for several reasons:
Top speed in 3rd = 120 MPH @ 6200 RPM with my 255/40ZR17s which give 829 revs/mile.
2100 RPM @ 60 MPH in OD
3100 RPM @ 60 MPH in 3rd
A friend of mine had 4.10s and was running out of RPMs at the 1/4 so he had to go with a bigger diameter tire.
Most 5.0s can't rev. over 6200 due to valve float anyways. So with 3.73s a stall converter, good shift kit and good control arms you'll out lauch those 5 speeds
Good Luck, Don
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