OrthoD
Enthusiast
I want to change the gears on my SRT10 coupe. Any suggestions on which gear to go with?
3:55 or 3:73 gears
- Thread starter OrthoD
- Start date
PhoenixGTS
Enthusiast
I think 3.55 are perfect in my Gen II and the equivalent gear with Gen III sized rear tires would be 3.73. BUT I have sticky rear tires.
Sleepersnake
Enthusiast
I have had 3.73 gears on my SRT-10 vert for almost a year. I have to shift like I did when I had my 02 M3. In the winter I had hookup problems due to the runflats, but it was very manageable. Overall, I have been very pleased.
SnakeEye
Viper Owner
3.55's get my vote.
lankhoss
Enthusiast
I know a guy with 3:73's that he's put in 2 SRT-10's, and he's very happy with them. I believe he mentioned he was still able to get a very high top speed (if that's something you are interested in).
I have ridden in my friend's Mustang Cobras with 3:55, and I love that gear. In my opinion, I think I'd rather have the 3:55's with the 6k redline. But in all honesty, I don't think you can go wrong with either.
(how's that for conclusive???)
I have ridden in my friend's Mustang Cobras with 3:55, and I love that gear. In my opinion, I think I'd rather have the 3:55's with the 6k redline. But in all honesty, I don't think you can go wrong with either.
(how's that for conclusive???)
DocAdam
Viper Owner
I have 3.55 and it seems perfect to me. 3.73 may be a little bit too much.
So did you need speedo/odo calibration?? I've been hearing both sides.
I've been considering gears but the thought of calibration boxes scares me... it is a MAJOR pain in the butt...
Fred(DrivingSchool)Kinder
Enthusiast
Back road driving, no or little freeway cruising, plowing, trailer pulling will be better with 3:73's.
Normal freeway, street and track driving will like the stock gears.
Or if you enjoy shifting a lot pick your poison, 3:33, 3:55 or 3:73.
Normal freeway, street and track driving will like the stock gears.
Or if you enjoy shifting a lot pick your poison, 3:33, 3:55 or 3:73.
just curious....
with these gears where are the shift points at and will the car redline in 6th gear with them?
something a lot of folks forget to consider is shift points. if ur 1/4 miling, will the lower ratio make u shift another gear and will the gains more than compensate for the extra shift? how abt 0-60? how abt top end? sometimes the lower gearing will actually yield a higher top end cause it will allow u to spin the engine higher.
just food for thought.
with these gears where are the shift points at and will the car redline in 6th gear with them?
something a lot of folks forget to consider is shift points. if ur 1/4 miling, will the lower ratio make u shift another gear and will the gains more than compensate for the extra shift? how abt 0-60? how abt top end? sometimes the lower gearing will actually yield a higher top end cause it will allow u to spin the engine higher.
just food for thought.
Fred(DrivingSchool)Kinder
Enthusiast
The lower gears will mean an added shift and more difficult for a good hole shot.
1DumpedViper
Enthusiast
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Wont it mean a faster car though? I thought one of the advantages for the Z was the better gearing. 3:42's versus 3:07's?
PhoenixGTS
Enthusiast
Maybe the aftermarket should come up with a Powerglide swap kit for all you guys that think taller gearing is faster. And as far as "shifting a lot," come on it is a Viper not an SL55.
If you ever get a chance to drive an SRT-8 Jeep - DO IT! And tromp on the gas from a standing start. Traction and short gearing will make you a believer.
If you ever get a chance to drive an SRT-8 Jeep - DO IT! And tromp on the gas from a standing start. Traction and short gearing will make you a believer.
Racer Robbie
Enthusiast
Who do you guys think make the best 3.55 gear set for the best price?
I've been debating this swap in my GTS, and I have decided to stick with stock gearing. I have no doubt that the shorter gears WITH traction are quicker, but on the street hole shots are too tough.
It is already difficult to get standing start traction with 3.07's and in the heat of a street race with two loud cars, I don't want to try and modulate the throttle for a possibly slightly quicker jump.
It is already difficult to get standing start traction with 3.07's and in the heat of a street race with two loud cars, I don't want to try and modulate the throttle for a possibly slightly quicker jump.
If you get me a DANA or SPICER P/N I get it at cost...
I am on the market as well, 3.55's
slightly off topic but related....
is there a chart or something that has what the speed is at the top of each gear?
then we can figure out the same thing with different gears.
this info may help people decide what gear ratio they want to go with.
is there a chart or something that has what the speed is at the top of each gear?
then we can figure out the same thing with different gears.
this info may help people decide what gear ratio they want to go with.
SnakeEye
Viper Owner
SnakeEye
Viper Owner
SRT-10 gear ratios:
1st- 2.66
2nd- 1.78
3rd- 1.30
4th- 1.00
5th- .74
6th- .50
1st- 2.66
2nd- 1.78
3rd- 1.30
4th- 1.00
5th- .74
6th- .50
Scott_in_FL
Viper Owner
From R&T: 2.66, 1.78, 1.30, 1.00, .74, .50
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I have run all of the gear sets below at various power levels. IMHO;
3.55's work well with stock Gen III tires.
3.45's work well with stock Gen II tires.
3.33's work well too if you can find them.
3.07's are best for higher power levels, i.e. Paxtons, etc. and work well at road racing events.
3.73's are too low for Viper, in my opinion.
If you are mostly stock, i.e. headers, intake and a tune, you won't have any real traction issues with either 3.33, 3.45 or 3.55 gear sets, especially with sticky tires.
Dana seems to make the best gear set and sell it as a Mopar part.
No speedo recalibration needed, the speed signal comes from the wheel speed sensors as stated above. Your speedo will be off slightly if you change tire sizes from stock.
Call Unitrax for parts. They are the best.
Good luck,
Dan
3.55's work well with stock Gen III tires.
3.45's work well with stock Gen II tires.
3.33's work well too if you can find them.
3.07's are best for higher power levels, i.e. Paxtons, etc. and work well at road racing events.
3.73's are too low for Viper, in my opinion.
If you are mostly stock, i.e. headers, intake and a tune, you won't have any real traction issues with either 3.33, 3.45 or 3.55 gear sets, especially with sticky tires.
Dana seems to make the best gear set and sell it as a Mopar part.
No speedo recalibration needed, the speed signal comes from the wheel speed sensors as stated above. Your speedo will be off slightly if you change tire sizes from stock.
Call Unitrax for parts. They are the best.
Good luck,
Dan
Scott_in_FL
Viper Owner
Ah, beat me to it. I would be in the market for 3.33 if anyone is interested in putting together a group buy. Should be good for a couple of tenths and still not kill the top end too much. I remember moving from 3.08 to 3.27 on my old mustangs was the perfect change. My car use to annihilate all the Buick GN's, which were the hot item back in the late '80's.
Racer Robbie
Enthusiast
Great info, Viperx. And SnakeEye, thanks for the great tool.
Thanks.
Robbie
Thanks.
Robbie
