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Home > Performance Mods > Transmission / Drivetrain > Doc I or K2?

Doc I or K2?

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diego11032000

Reg'd: Oct 07, 2007

Detailer

I'm in the process of choosing a short shifter for my tc but i'm stuck between the Doc I and the K2 shifter. Which one is better quality and will give better performance?

[#] Jun 30, 2008 01:26pm
FrAnkRYzzO

Reg'd: Oct 21, 2005

$upervillain
for Hire

Doc I FTW. You can get a full preassembled cage from him that is built to withstand a lifetime of use. Just drop it in and send him your stock cage for the core charge.

...............

Donate or one of these adorable kittens WILL DIE!
[#] Jun 30, 2008 01:29pm
diego11032000

Reg'd: Oct 07, 2007

Detailer

ya its about twice as expensive as the k2. I was referring to the doc I gearswitcher premium

[#] Jun 30, 2008 01:30pm
SqMK

Reg'd: Dec 31, 1969

Ultimate Window Washer

I have gearswitcher from Doc I. It's great. I switched from a K2 to docs ;)

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[#] Jun 30, 2008 01:30pm
Mayo

Reg'd: Feb 14, 2007

The Guru

I got K2, its decent. Kinda wish the throws were a little shorter though. Maybe its a good idea to go with Doc I.


"gonna wash my car before i take a nap.. can't rest well knowing i've got the entire cast of A Bug's Life on my bumper" - Vicious
-- Want to post a "For Sale" thread? Check out the rules first.
[#] Jun 30, 2008 02:05pm
diego11032000

Reg'd: Oct 07, 2007

Detailer

so doc I has a shorter throw. sounds good. I was thinking maybe getting that with a 2.0 inch drop. Anyone have this setup?

[#] Jun 30, 2008 03:52pm
FrAnkRYzzO

Reg'd: Oct 21, 2005

$upervillain
for Hire

I don't have that setup, but I've seen it, and 2" is a good happy medium. Not too short that it makes shifting hard, but not so tall that it looks stock.

...............

Donate or one of these adorable kittens WILL DIE!
[#] Jun 30, 2008 04:03pm
SquallLHeart

Reg'd: Sep 09, 2004

The Techie

well, you can pretty much trust doc i vs. some off brand thing that i've only seen sold on ebay

that and you can customize your gearswitcher to whatever dimensions you want pretty much. he's a great guy.

LED questions? AIM: 'SquallLHeart TN'

LED Swaps and parts available! PM me for details, questions and/or quotes.

There's Strong, and then there's RETARD Strong.
Decelerate your life.
The Few, the Proud... (they never really tell you what they're really "proud" of, eh?)
Below All (USAF - Uncle Sam's Academic Failures)
[#] Jun 30, 2008 05:26pm
Web

Reg'd: Apr 17, 2006

THE SHADOW

I haven't had any issues at all (70K) with my K2 setup. Just to give you the flip side.


Ignorance is bliss....305 fo life!...haha...Poser
[#] Jun 30, 2008 10:11pm
diego11032000

Reg'd: Oct 07, 2007

Detailer

how much of a drop is the k2 shifter?

[#] Jun 30, 2008 10:53pm
Web

Reg'd: Apr 17, 2006

THE SHADOW

Only .5"....I didn't want drop, I wanted throw reduction. The throw is reduced quite a bit from stock and with the longer handle, you utilize leverage to engage the gears with a bit more ease.


Ignorance is bliss....305 fo life!...haha...Poser
[#] Jun 30, 2008 11:09pm
diego11032000

Reg'd: Oct 07, 2007

Detailer

true but the shorter lever looks better and makes for shorter throws because of the decreased radius.

[#] Jun 30, 2008 11:49pm
Web

Reg'd: Apr 17, 2006

THE SHADOW

No, height has nothing to do with throw reduction. It's all in the pivot point of the shaft, not the height. Look at Doc I's extremely LONG shaft...hahaha....it's about 2 feet long and still a shift reduction.


Ignorance is bliss....305 fo life!...haha...Poser
[#] Jul 01, 2008 08:56am
diego11032000

Reg'd: Oct 07, 2007

Detailer

no it actually does. And i know the short throws are based on the pivot point but in addition to that, the shorter the height from the pivot point to the top of the shaft the shorter the throws assuming that everything else is constant. Its simple physics, think of the length of the throws as the edge of a circle and think of the shaft height from the pivot point to the top of the shaft as the radius of the circle. The shorter the radius the shorter the arc length.

[#] Jul 01, 2008 03:56pm
Web

Reg'd: Apr 17, 2006

THE SHADOW

Only loop hole in that is when you lengthen the overall length of the shaft, you change the bend as well. The longer the shaft, the more dramatic the bend towards the driver. That's how Mustangs are setup with their S-shaped shifter. The pivot is in the center and from that center, the shaft is bent towards the driver. You lengthen the arm (make it closer to the driver) and reduce the overall throw.

..from Dr. I's profile:


Look at the extra S-bend he has right above the collar. With that extra bend, he has a shorter gear throw than even the TWM stage II shifter which is about 4.5 inches tall.


Ignorance is bliss....305 fo life!...haha...Poser
[#] Jul 01, 2008 08:26pm
diego11032000

Reg'd: Oct 07, 2007

Detailer

that just brings the shifter closer to you it doesn't actually reduce the distance of the throw from say 1st to 2nd. And who says theres a bend. I thought tc shifters are straight from the pivot point up.

[#] Jul 01, 2008 09:26pm
Web

Reg'd: Apr 17, 2006

THE SHADOW

No, they have a certain degree bend. You'll see it when you take the boot housing off. There's a bend right at the top of the pivot collar, usually a bit off to the right and down.

I would PM Dr. I, or maybe he can write a comment in this thread, to figure out the angles of reduction he uses....just at the pivot or at both the pivot and the shaft handle.


Ignorance is bliss....305 fo life!...haha...Poser
[#] Jul 01, 2008 09:49pm
diego11032000

Reg'd: Oct 07, 2007

Detailer

its ok i already ordered a shifter from doc i with a 2.0 inch drop i just wanted people to know that when you go for a shorter shaft heigh (given that the shifter is straight) you're basically trading leverage for slight shorter shift throw.

[#] Jul 01, 2008 10:21pm
Web

Reg'd: Apr 17, 2006

THE SHADOW

^Gottcha......I can agree with that since it's the leverage that enhances the shorter feel. Without it, the throws take a bit more arm stretch in the seated driver's position.


Ignorance is bliss....305 fo life!...haha...Poser
[#] Jul 01, 2008 11:54pm
AndrewF

Reg'd: Jun 10, 2008

Tire Changer

I just installed the Doc I 1.5" drop on his recommendation. I am very happy with it but wish I went with a little bit longer handle. Maybe the .5" drop, but it's not a huge deal. The throws are incredibly short, overall very happy.

[#] Jul 02, 2008 01:17am
diego11032000

Reg'd: Oct 07, 2007

Detailer

cool guys , thanks for the help. I sent doc an email about the shaft height i wanted but he didnt respond. Is that normal?

[#] Jul 02, 2008 03:47am
MoiBoi

Reg'd: Jul 26, 2007

Tech Advisor

I have docs and i say go with him, awesome products here are some pics of my 2.5 height reduction.

Doc shifter


Stock Shifter Installed


Doc Shifter Installed


Stock LEFT Doc RIGHT


Fhinished Result



My review Showing the throws
[#] Jul 02, 2008 04:27am
Vicious

Reg'd: May 03, 2005

El Chupacabra

I have the k2 shifter, makes a huge difference over stock. And I've heard nothing but good things about Doc's shifters too. So I think you'll be fine either way



The Thread Killah
[#] Jul 02, 2008 06:25am
SquallLHeart

Reg'd: Sep 09, 2004

The Techie

diego11032000 wrote:
cool guys , thanks for the help. I sent doc an email about the shaft height i wanted but he didnt respond. Is that normal?

give him some time to respond.

he's only one person afterall, and i've been to his house once... alot of orders come in sometimes and all you see him do is work all day on making these gearswitchers of his, with is pretty labor intensive.

it's quite amazing, and you gotta give the guy alot of respect that despite it takes alot of time to transform a stock shaft into one of his shifters, he doesn't charge that much for them.

that's why i recommend him. he'll get back to you when he's free or taking a break

LED questions? AIM: 'SquallLHeart TN'

LED Swaps and parts available! PM me for details, questions and/or quotes.

There's Strong, and then there's RETARD Strong.
Decelerate your life.
The Few, the Proud... (they never really tell you what they're really "proud" of, eh?)
Below All (USAF - Uncle Sam's Academic Failures)
[#] Jul 02, 2008 12:43pm
diego11032000

Reg'd: Oct 07, 2007

Detailer

Hey web , so i got my doc I and i saw the bend you were talking about and just wanted to let you know that that bend will not change what I said. The angle is constant so the shorter the shaft the shorter the throws and vice versa.

[#] Jul 05, 2008 03:57pm

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