3.55's should be in every gen3

[pony23]

Just had my recall done on my 03. So while I was there why not have them install a set of 3.55's that I had picked up. Hands down this is worth every penny. Makes the car that much more of a pleasure to drive. The enjoyment level just went up a lot!!!!! :)

[Mr. Bill]

Agreed! Best mod for the money.

[St.Char]

I'm scared shi^less to have that recall done, I'll have more squeaks,rattles and damage to my pristine interior. Waiting for someone around town to have it done first....

[Mr. Bill]

I'm scared shi^less to have that recall done, I'll have more squeaks,rattles and damage to my pristine interior. Waiting for someone around town to have it done first....

What recall are you guys refering to?

[FrgMstr]

3.55s in the Gen III, totally agreed, best mod ever.

[Sybil TF]

Gears in any year I think. 3:73 feel pretty good as well..;)

[J TNT]

Did 3.55's as well as Wavetrac Posi and the car is way better now coming out of the corners at the track :)

[AbsolutHank]

Yup I did it in 2 of my 3 Gen IIIs. Such a great mod, and with our 6th gear, it doesn't really raise cruising RPMs at all

[St.Char]

What recall are you guys refering to?

Airbag...hear they have to remove the dash.

[Derek Short]

Nice, how much was the install and parts total on 3.55's?
I am really considering doing this upgrade on my gen 4

[pony23]

I bought the 2013 3.55 gear kit (includes new bolts,nut,gears, and crush) for $450. The install was around $650 and they had to buy a few things like fluid and a new bearing.

[slowhatch]

Cant wait to do the same to my gen 4, loved them on my gen 3. It is the best bang for the mod you can do for these cars, period.

[SlateEd]

I keep debating this one.. I do a lot of highway with my car and I like the top-end now but it's so tempting.

One thing's for sure Pony - It's one more reason to get rid of those run-flats soon :-)

[pony23]

Ed, you hit the nail on the head with that one. Finally closed on my new house so hopefully soon.

[TowDawg]

I've got 3.33's in mine, but I've also got the revised 5th and 6th in the transmission. 3.55's would be fun, but probably kill too much top end and run too high of RPM's on the highway with the updated trans gears. Plus, since I'm done road racing the car, I might go FI in the future. :)

[No hemi]

Yup, Have them in mine, LOVE 'em!!prob go to 3.33's when i go FI, but for now, enjoying them!!!

[steve911]

Yup, Have them in mine, LOVE 'em!!prob go to 3.33's when i go FI, but for now, enjoying them!!!

Unless things have changed within the past 2 weeks, no one is making a VIPER rated 3.33. There are Corvette ones floating around out there which you do not want to use (pinion gear snout much smaller) and they put a spacer to upsize it for the Viper diff bearings. I've seen several sheared off under heavy use.

[brifri11]

Do these 3.55 gears help with speed, as in, 1/4 mile times? Or mainly just for cruising speeds?

[No hemi]

It's like putting 80 more( or so) hp to to your viper , if you want to know more ask Jon B, he knows a thing or two about gears!!

[Steve M]

Do these 3.55 gears help with speed, as in, 1/4 mile times? Or mainly just for cruising speeds?

It would help get you off the line better, and I know for the Gen 4 guys it would put you in a better spot crossing the traps.

[SlateEd]

Do these 3.55 gears help with speed, as in, 1/4 mile times? Or mainly just for cruising speeds?

quarter mile definitely help. 1/2 mile or standing mile maybe not. you will limit your top speed by increasing the rear-end gear ratio, but in a 1/4 mile you're nowhere near that anyway and your acceleration will be better. (but also a little bit trickier to get traction from the start)

[SlateEd]

It would help get you off the line better, and I know for the Gen 4 guys it would put you in a better spot crossing the traps.

absolutely - changes your shift timing within a run (you'll be shifting quicker). I finish a 1/4 mile always on the border of shift to 4th or rev-limiter in 3rd for 100 feet. If I had 3.55 I would definitely be in 4th and pulling across the finish.

[FrgMstr]

This is a good calc sheet (http://xse.com/leres/bin/gearratio?title=SS+%23670+with+MM6+manual+and+3.73 +gears&rpm=6500&mph=60&gear1=2.66&gear2=1.82&gear3=1.30&gear4=1.00&gear5=0.80&gear6=0.50&reverse=2.90&axle=3.07&tire=diameter&diameter=27.00&circumference=84.82&revs=747&section=&profile=&wheel=) to put your values in to figure out where you are when changing rear gears, tires, or transmission gearing.

[dadstoy]

what is the mph effect on top speed with 3.55's versus stock.

I went from 3.42's to 4.56's in my 2001 TA. cut the top end from 188 down to 155. But picked up on the 1/4 mile times.

[FrgMstr]

what is the mph effect on top speed with 3.55's versus stock.

I went from 3.42's to 4.56's in my 2001 TA. cut the top end from 188 down to 155. But picked up on the 1/4 mile times.

Use the sheet I just linked above.

[J TNT]

Use the sheet I just linked above.
The numbers look interesting with 3.55's and 7000 RPM ;)

[TowDawg]

I haven't looked in a while, but Unitrax installed my 3.33's when I had the Quaife put in, so I doubt it's not Viper rated. Plus, it's survived for a few years and a lot of miles (street and track) and never missed a beat.
I haven't looked at the chart yet, but when I just had the gears, I would actually say my top speed increased over stock. Simply because our cars top out in 5th gear stock and can't pull anymore in 6th. With the gears, my speed per gear is lower, but I can keep pulling in 6th.
With just the gears, I saw an indicated 198mph (I'm sure that's not all that accurate) with a little more to go, but ran out of road. Damn Mexican roads aren't long enough!

[Cowger]

Did 3.55's as well as Wavetrac Posi and the car is way better now coming out of the corners at the track :)

Jay, glad to hear that you pulled the trigger on this upgrade! Couldn't agree more... : )

Bryan

[Fangs]

3.55's plus Paxton here. Lets me reach my driving skill limit very quickly...

[Mamba52]

355 plus aluminum flywheel. Clutch fells great!!!! Next up superchager or N/A build.

[J TNT]

Jay, glad to hear that you pulled the trigger on this upgrade! Couldn't agree more... : )

Bryan
Thanks Bryan ! Your post was inspirational ! I also did the MCS Suspension upgrade , track alignment and corner balancing . Looking at new wheels ,tires and rotors for next year to shave off some rotating mass , you got me on a roll now......lol ! ;)

[plumcrazy]

333 is the most i would ever do. drove one with 355 and did not like it for highway runs

[MR Viper]

what is the mph effect on top speed with 3.55's versus stock.

I went from 3.42's to 4.56's in my 2001 TA. cut the top end from 188 down to 155. But picked up on the 1/4 mile times.

The Gen 3/4 with a 3.55 rear gear will top out at 185 in 5th gear (bouncing off the rev limiter @ 6,700rpm). But this is just beyond the standing mile, so unless you're running flat out for a reeeeeally long time, most owners will never notice this reduction in top speed. The steeper rear gear puts 15% more torque to the rear wheels in any given gear, and higher round-town engine speeds in any given gear, so the car becomes much livelier at moderate engine speed, feels lighter on it's feet. But you will add a 3-4 upshift in the 1/4 mile, so the quarter time improvement is less noticeable due to lost momentum during the shift. Check out the calculator above - it's easy to use and looks pretty accurate.

[kirkinsb]

My 3.55s went in yesterday. I could tell on the way home that I am REALLY going to like it better as a daily driver!!!!

[Ripper]

My 3.55s went in yesterday. I could tell on the way home that I am REALLY going to like it better as a daily driver!!!!

Nice!

I will be installing a set soon. Great mod!