Thread: MFactory Forged Gear Sets - The #1 Gear Set for your sr20

Hello sr20-forum,

our #1 best-selling Forged Gear Sets are always in stock and ready to ship!

Close Ratio Gears - Road/Race (image is of our Honda gear set. I will post up an image of the SR20DET set asap)


Suitable for: Street Cars, Road/Race
Power Rating: ~500whp
Warranty: Manufacturers Defects upon Receipt & Initial Installation
Why MFactory?: Our Close Ratio Gears have been proven to be Stronger, Lighter and better performing than our competition

Fitment: SR20DET (Straight-Cut Synchronous Engagement)
1st - 2.600
2nd - 1.742
3rd - 1.285
4th - 1.000
5th - 0.844

Price: $2999.95 inc FREE Shipping within Mainland US


Final Drive Gears (image is of our Honda final drive. I will post up an image of the SR20 set asap)


Suitable for: Street Cars, Road/Race
Power Rating: ~300whp
Warranty: Manufacturers Defects upon Receipt & Initial Installation
Why MFactory?: Our Final Drive Gears have been proven to be Stronger, Lighter and better performing than our competition

By changing your final gear ratios, you can experience a dramatic increase in acceleration, giving you on average, a 10-15% increase in torque throughout the entire rev-range over the OEM Final Drive. CLICK HERE to see how much power you could gain!

Fitments:
Part# MF-TRS-02NIS45 - Nissan SR20DET - 4.50
Part# MF-TRS-02NIS47 - Nissan SR20DE (with OEM LSD) - 4.785

Price:
All Fitments - $579.95 inc FREE Shipping within Mainland US

How to order: Please send us a PM

<---------- IMPORTANT NOTICE ---------->
We have recently become aware of cheap and inferior "copies" of our Final Drives & Close Ratio Gear Sets, including our own custom ratios, being made available on the market. These DO NOT go through the same forging and heat treatment processes and will compromise your safety if installed on your vehicle. STAY SAFE and only purchase your Final Drives & Close Ratio Gears Sets from an Authorized MFactory Dealer
<---------- IMPORTANT NOTICE ---------->

how about a. custom 4th gear for the sr20/sr16 box

Which trans is this for? When you say SR20DET are you referring to the 50 box or to a USDM 32 or 70 box?

mercado ser - We can make a custom fitment if we can get a minimum of 10 confirmed buyers

LAM-PARK - It's for the RS5F50A

Do you think that will be possible to develop a 1.000 4th gear to work with the OEM input shaft just by replacing the gear of the output shaft???

The 4th gear is a "set" i.e Mainshaft Gear + Countershaft Gear, so would need to be replaced as a pair

Sorry if this hasw been asked before but, would the final drive work in an RS5F70A? If not would it work if I installed an lsd?

I'm not too sure of the differences between the lsd and non-lsd transmission, whether the only difference is the ring gear or the pinion as well?

Yeah, see I'm pretty ignorant about diffs and final drives and trannys and all that. I just want a tranny setup that will make up for my short comings in power. I know final drives help with that and I've heard good things about you guys, but obviously I don't want to purchase something that isn't going to work. If it will work I'll definitely be investing in one though.

Hello! Willing to make Nissan SR20DE (with OEM LSD) - 4.785 for an open diff trans? Its very similar, i think it has just different bolt pattern which wont be a problem right?