TH200m to 200r4

[81Caleh]

No idea what gears I has its low I know that
199 d35 tt5 z49
72l d55 u19
72u d64 u21
77e gh2 u25
771 jm7 u26
a01 k35 u27
a31 k73 u29
a90 km7 u41
ac3 l39 u46
ar9 n33 u75
au3 n91 ue8
b79 nk1 un3
b85 nk3 up8
b94 nm4 vk3
bs1 nm5 y55
bx2 nm6 y71
c49 ny8 y78
c65 t46 ys1
cd4 t63 yt1

Thats all the rpo codes for the car maybe you could tell me what it has!

 

[truracer20]

Looks like 2.29 ratio. GH2 is the code

 

[81Caleh]

I knew it was a terrible ratio, maybe thats why the car feels like its being held back. if i swapped the 3.42's in with the current th200m will it rev crazy on the highway ?

 

[truracer20]

Not to bad. You could expect an extra 1000 RPM or so with the 3.42 at 65 MPH. Actual RPM depends on tire size.
If you are running 195/70-14 your RPM at 65 MPH would be @ 3200 RPM
If you are running 205/75-14 your RPM at 65 MPH would be @ 3100 RPM
With overdrive your RPM will drop @ 1000 RPM at 65 MPH.

With overdrive and 2.29 gears The engine will feel extremely sluggish while trying to gently accelerate.
Now if this is a warmed up 400, 425, or 455 it wouldn't seem too bad, still not ideal. But anything stock or close to stock will feel dead and unresponsive. You would find yourself accelerating harder than needed just to force a downshift. Or manually shifting.

 

[tobyp]

you need a 4 speed OD

 

[truracer20]

Your speedometer will also need recalibrated.

 

[tobyp]

Your speedometer will also need recalibrated.

just a new blue gear on side of transmission for a 3:42 on a 2004-r. Have a few