Gear Box

[who's next]

hey its been a while, quick question which one is the better gearbox, the rb25 big box or the rb20? and how easy is it 2 instal, are they the same amount of work one is it more difficult to fit the big box vs the rb20

thanks

Roger

[Nic_A31]

RB20 = straight fit.

RB25 is a stronger box but you need to make up a speedo drive for it. Quick search brings up a few tutorials on how to do that. Otherwise, the 25box does go straight in, think the yoke is different so you gotta make up a driveshaft too ? I'll let one of the other guys answer that.

[Kris..]

mount needs modding

tailshaft needs modding

need an r33 slave and shifter

other than that pretty easy to do

[who's next]

thanks guys

[SirRacer]

It depends on how much power you are making really and the price difference you can get the boxes for.

If the car is an auto as well, the crossmember will work perfectly (the auto one).

[brada31ke70]

by the time you rebuild or replace a couple of rb20 gearboxes you would have paid for a strong rb25 gear box. you dont need to change the master cylinder and the slave cylinder will generally come with the gearbox, as old mate mentioned, an auto crossmember fits perfectly in a cefiro, your clutch will fit, make sure you get a push type gearbox out of a series one r33, just get some one to join the rear of your drive shaft with the front of a r33 front drive shaft, next is the speedo drive, nissan navara speedo drive tuned upside down with a r33 gear on it, not that hard really. factor in selling your rb20 gearbox when it is not smashed and the tow truck to pick you up after you are left stranded some where with a blown gear box and the answer is simple really,

[who's next]

thanks, i would go hunting for one this weekend