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3.73 Gears

1K views 11 replies 8 participants last post by  LAS97GT 
#1 ·
So i was wondering with a tr-360 and 3.73 what rpm i would be at around 65 mph, i saw the video with the 4.10's but that cant be, my car right now stock is a 2000rpm at 65 his said 2000rpm at 65 with 4.10's any one have any input?
 
#2 ·
With my 3.73's I run 70mph 2150rpm about 2k at 65mph

are you sure that you have a stock diff?? I know I dont i installed mine, but did you by car new. a quick check is to jack the rear up (both wheels) and spin the wheels on full turn and check the driveshaft. it should almost turn 4 times with 3.73's and 3.25 turns with 3.27's
 
#3 ·
Approximate RPM for 1999-2004 GT Manual with 3.73
Gear Speed
25 MPH 35 MPH 45 MPH 55 MPH 65 MPH 75 MPH
1 3888 5443 6998
2 2301 3221 4141 5061 5981 6902
3 1518 2126 2733 3340 3948 4555
4 1150 1610 2070 2531 2991 3451
5 782 1095 1480 1721 2034 2347

---------- Post added at 09:51 PM ---------- Previous post was at 09:48 PM ----------

Approximate RPM for 1999-2004 GT Manual with 3.73

Gear Speed
25 MPH 35 MPH 45 MPH 55 MPH 65 MPH 75 MPH
1 3888 5443 6998

2 2301 3221 4141 5061 5981 6902

3 1518 2126 2733 3340 3948 4555

4 1150 1610 2070 2531 2991 3451

5 782 1095 1480 1721 2034 2347

---------- Post added at 09:54 PM ---------- Previous post was at 09:51 PM ----------

Dumb formatting messed that up
 
#4 ·
I will have to check it out, i got the car from an older couple and they said the car was bone stock but ill just have to jack it up and take a look. Thanks guys
 
#7 ·
A way to check what gears you have, have the car stationary and then check how much the driveshaft moves per wheel rotation. With 3.73s the driveshaft should make 3 and about 3/4 turns at the point that the wheels make 1 full rotation.
 
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