Jump to content
SAU Community

Recommended Posts

  • 6 months later...

Just a bit of info for those who want to do this.

The front diff in a GTR or GTS4 is an r180 short nose. This is the same diff as many nissans incuding n/a s13's, terrano front, pathfinder front, navara front, pulsar gtir rear to name a few. They aren't always r180's so check first as some are r200 depending on model etc.

I have not done this and won't be as I don't have a 4wd nissan. But in theory you should be able to use the insides from any short nose r180 in your sump. This will make matching ratios easier and open up more available ratios.

An exampe would be using the insides (crown wheel and pinion) from a mid '80's Navara, this is an r180. You could then use the insides from an r200 from the front of a terrano for the rear. Giving you a 4.6 ratio. These 4wd's have a number of ratio's and a number of diff combos. Ratios are 4.3, 4.6 and 4.8 but there may be others too. Navara and Terrano/Pathfinder front diffs can be r180's or r200's.

  • 3 weeks later...

just to clarify that.....workshop manual calls it an F160 not F180. From that I assume it is a 160 size not 180. I'm not sure either way, that's just what the manual calls it.

yeah like the d-man said to the best of my knowledge the front is a F160 not a F180. F being front and R being rear incase anyone is wondering why there are R200, R180 etc. front GTR diffs are tiny.

it's still worth looking into though if there are other 160 diffs out there but you need to figure out for sure if there are any differences between the F and the R models. I assume crown wheel is the same but the pinnion shaft could be very different.

  • 2 weeks later...

Like I said I have not done it and never will, but I have always been told the front diff was an R180 in the GTR and GTS4. I have seen references to the F160 which does put some doubt over it.

If someone has an R180 and a front sump from a 4wd skyline measure them both. That will clear it up.

I have never seen or heard of any short nose R160 diff though, so if it is in fact an R160 there would possibly be no other ratios available.

I doubt that an entirely new diff type was designed and built for only 1 car with only 2 ratios. So I would assume that if it is in fact a 160 there should be other short nose 160's found in something, somewhere.

Long nose 160's and 180's have been around for more than 40 years. They are found in Nissans and Subarus. They are largely interchangeable with minor differences that can be overcome. Short nose 180's and 200's have been around for 25 years plus too. Most of the minor differences can be overcome also.

These diffs are made by Hitachi not Nissan, so they are possibly found in other makes.

Short nose 160's would have to be available from something else, imo. I could be wrong though.

  • 1 year later...

Bump :)

Ok, Rb26 is going into my GTs4, so ive already got the gear ratio you are all talking about.

Would there be any implications leaving it as is?

And is this added aceleration not practial for street driving, OR its not that much of a differance.

Surely i must need to change some parts of the Drive train to suit the 26 going in.

Bump :)

Ok, Rb26 is going into my GTs4, so ive already got the gear ratio you are all talking about.

Would there be any implications leaving it as is?

And is this added aceleration not practial for street driving, OR its not that much of a differance.

Surely i must need to change some parts of the Drive train to suit the 26 going in.

Dont change anything, 4.3s are perfect

i have a set of front and rear crown wheels and pinions sitting at home, still tossing up whether to go to the trouble of getting it installed, around 1k mark if i recall correctly

car is mainly used for short drives and not much highway cruising unless going inter-state which will be interesting with higher revs

26 does lack below 4k, so it should liven things up

@dean - are you using the 4.375 diffs in your drag clip at WSID?

  • 1 year later...

How much better is acceleration down low?

acceleration will improve down low, by how much is all a matter of personal opinion, some will say it so a lot better and others will say a little bit
  • 3 years later...

Ok i'm resurrecting an old thread instead of starting a new one. I have a R34GT-4 manual, it comes with RC 4.3. I'm planning on getting a 33GTR gearbox series 3 as it is stronger. Are there any issues with using a GTR gearbox and the 4.3 ratio?

no, there is not. gearbox and diff choices are not linked. plus, r32 gts4 came exactly that way from the factory (4.4s and gtr box that is). I bet r33 gts4 is the same from factory as well

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Hi all,   long time listener, first time caller   i was wondering if anyone can help me identify a transistor on the climate control unit board that decided to fry itself   I've circled it in the attached photo   any help would be appreciated
    • I mean, I got two VASS engineers to refuse to cert my own coilovers stating those very laws. Appendix B makes it pretty clear what it considers 'Variable Suspension' to be. In my lived experience they can't certify something that isn't actually in the list as something that requires certification. In the VASS engineering checklist they have to complete (LS3/NCOP11) and sign on there is nothing there. All the references inside NCOP11 state that if it's variable by the driver that height needs to maintain 100mm while the car is in motion. It states the car is lowered lowering blocks and other types of things are acceptable. Dialling out a shock is about as 'user adjustable' as changing any other suspension component lol. I wanted to have it signed off to dissuade HWP and RWC testers to state the suspension is legal to avoid having this discussion with them. The real problem is that Police and RWC/Pink/Blue slip people will say it needs engineering, and the engineers will state it doesn't need engineering. It is hugely irritating when aforementioned people get all "i know the rules mate feck off" when they don't, and the actual engineers are pleasant as all hell and do know the rules. Cars failing RWC for things that aren't listed in the RWC requirements is another thing here entirely!
    • I don't. I mean, mine's not a GTR, but it is a 32 with a lot of GTR stuff on it. But regardless, I typically buy from local suppliers. Getting stuff from Japan is seldom worth the pain. Buying from RHDJapan usually ends up in the final total of your basket being about double what you thought it would be, after all the bullshit fees and such are added on.
    • The hydrocarbon component of E10 can be shittier, and is in fact, shittier, than that used in normal 91RON fuel. That's because the octane boost provided by the ethanol allows them to use stuff that doesn't make the grade without the help. The 1c/L saving typically available on E10 is going to be massively overridden by the increased consumption caused by the ethanol and the crappier HC (ie the HCs will be less dense, meaning that there will definitely be less energy per unit volume than for more dense HCs). That is one of the reasons why P98 will return better fuel consumption than 91 does, even with the ignition timing completely fixed. There is more energy per unit volume because the HCs used in 98 are higher density than in the lawnmower fuel.
    • No, I'd suggest that that is the checklist for pneumatic/hydraulic adjustable systems. I would say, based on my years of reading and complying with Australian Standards and similar regulations, that the narrow interpretation of Clause 3.2 b would be the preferred/expected/intended one, by the author, and those using the standard. Wishful thinking need not apply.
×
×
  • Create New...