S14/S15/R33/R34 デフケース流用マウントZ33/Z34

Q: What is backorder?
When a product is on backorder, it means that we have sold out and we are opening a back order due to popular demand. This is essentially a queue, when new stock arrives from production, we’ll send your order.

Q: How long does backorder take?
If an ETA isn’t currently set, we are working with production to confirm an ETA. We will normally have this confirmed within 5 days so please check back shortly.

Q: Will items in my order that are in stock be shipped out first?
We will send your order altogether once your backorder item is ready! You may wish to place separate orders if you want an item before the other is due back in stock.

From ¥7,150

To ¥8,910

The GKTECH S/R Chassis to 350z/370z Diff conversion bushes allow you to bolt in the stronger 350z/370z/G35/G37 differential to your 2 bolt R200 S14/S15/R33/R34 subframe.

The bushes are CNC Machined from 6061-T6 aluminium and require no further modification to the subframe, just simply press the two bushes into the diff, while pressing the other in the subframe.

You will notice there are two options to choose from, most commonly people have the single bolt cover, which comes as shown in the product photo.

The other selection is for two bolt Z33/Z34 diff housings, which will come with two front bushes and two rear bushes.

Vehicle Compatibility:
- Nissan S14 200SX
- Nissan S15 200SX 
- Nissan Z32 300ZX
- Nissan Skyline R32 GTR
- Nissan Skyline R33 GTS-T
- Nissan Skyline R33 GTS-4
- Nissan Skyline R33 GTR
- Nissan Skyline R34 GT-T
- Nissan Skyline R34 GTR

NOTE: Upon fitment, please check driveshaft (CV/axle) length to ensure there are no possibilities of the driveshaft (CV/axle) overextending or driveshaft (CV/axle) compression, which may lead to failures. 


* Please be aware if you select a product that is out of stock, on backorder or states an eta, your order will only be shipped once all products are in stock. If you are unsure, contact us.

S14/S15/R33/R34 デフケース流用マウントZ33/Z34
S14/S15/R33/R34 デフケース流用マウントZ33/Z34

In stock


Your Selection Breakdown:




    Will this fit my car?
    We can only confirm fitment for the vehicles listed above under "vehicle compatibility". If your car is not listed there, then we don't know if it will fit.

    Do you make these to suit other cars?
    We only sell the parts listed on our website. If it's not listed on our website, then we don't sell it. Sorry.

    What's the advantage of using the GKTech 350/370z diff conversion bushes?
    The 350z/370z/G35/G37 diffs are becoming more readily available and are newer than the 15+ year old diffs people use now. They also have driveshaft (CV/ axle) sensors which are great to use for calculating wheel speed. The stub spline that goes into the diff center is the same as R33 GTR being a 31 spline. As opposed to the R32 GTR diff being 30 spline and the R33 GTS-T diff being 29 spline. 

    The pinion gear thread is also larger on these diffs then any S/R chassis diff. They also use Rzeppa style driveshafts (CV/ axles), which are significantly stronger as oppose to the Tripod design S/R chassis have which are weaker.

    The driveshafts of the all the CV/ axles excluding the 370z also directly bolt up to S/R chassis wheel hubs. The 370z shafts have a GTR spline output to the rear wheel bearing/hub, meaning the wheel bearing/hub would need to be changed to the GTR equivalent.

    What modifications are required, is this hard to fit?
    You will need to redrill your diff flange to suit your tailshaft bolt PCD, which can be done relatively easily. Then press the bushes into the diff and subframe. Please take note of which direction the rear bush is to be facing based on the position of the diff stud before pressing the bush in.

    Is there anything else needed for installation?
    You will need to purchase the diff itself. Apart from that, the OEM hardware can be used as the bushes will arrive as shown in the product photo.

    Can I install this myself? If so how long will installation take?
    Yes, it is relatively straightforward. Once the subframe is out it should take around 45 minutes.

    Do these bushes offset where the diff mounts in the subframe?
    No, the bushings have been designed to align the diff in the center of the subframe.

    I keep breaking the teeth off my crown wheel, will this diff be strong enough to stop that happening?
    No, the crown wheel and pinion and the same between S/R/350z/370z/G35/G37. That is why they are still called an R200.

    What sort of ratios do these diffs have?
    The 350z/370z/G35/G37 diffs have a wide variety of OEM ratios which can be seen here;
    Z33 - MT - R200 - 3.538
    Z33 - MT - R200V - 3.538
    Z33 - AT - R200V - 3.357
    Z34 – MT – R200V – 3.692
    Z34 – AT – R200V – 3.357
    G35 - Sedan - AT - R200 - 3.357
    G35 - Sedan - MT - R200V - 3.538
    G35 - Sedan - AWD - AT - R200 - 3.357
    G35 - Coupe - MT - R200V - 3.538
    G35 - Coupe - AT - R200 - 3.357
    G35 - Coupe - AT - R200V - 3.357
    G37 – Sedan – AT - R200V – 3.357
    G37 – Sedan – MT – R200V – 3.692

    They also have aftermarket support with ratios from 3.9, 4.1 and 4.3

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