DESCRIPTION
Nissan Silvia 180SX, 200SX, 240SX CA18, SR20, KA24, RB20, FJ20 Close Ratio Synchronized Gearset.
Designed to handle up to 400HP across most applications.
Our gearsets have demonstrated their reliability across various platforms. Now, we're extending this support to the small case transmissions typically found in vehicles powered by the SR20, CA18, KA24, RB20, and RB25DE engines.
Ratio's below for the ultimate strength/performance:
Speedtek Auto Racing Synchronized Helical Cut Gearset
1-3.201
2-1.725
3- 1.264
4- 1.00
5- OPTIONAL 0.677 (Much longer than stock Ratio but ideal for Road use to lower RPM on the Highway)
S13 SR20DET & KA24 Ratio's. (180sx JDM /240SX - USDM)
1- 3.321
2- 1.902
3- 1.308
4- 1.000
5- 0.759
Be mindful these are intended for vehicles that still want to be street driven and not exceed 400HP. These kits are much stronger than standard gears, we use only premium quality materials, and our tooth profiles are much thicker then stock.Limited stock is available, but we are constantly making them, if we do not have stock, lead time is around 6 weeks.
These utilize synchro rings which are single piece throughout, you may need to verify with your transmission builder which synchro rings/sleeves you have and then possibly change them to single piece, we have gone with this route as they are much easier to find then multipiece synchros and we have found they work well for street use.1st & 2nd Gear Synchro Ring Size 67mm (approx)3rd/4th Gear Synchro Ring size 60mm (approx)5th Gear Synchro Ring Size 52mm (approx)
This gearset requires specific Shift HUB & Sleeve in 3rd-4th & Fork to suit. If you are not certain on what you currently have in your transmission, we would suggest you order these through us during check out.
3rd-4th Hub : (to be listed)
Fork :
Replacement HD Cast Shift Fork suit 3rd & 4th Gear - 71 Series Transmi – Speedtek Auto Racing
SHIPPING & LEAD TIME
If product Ex-Stock Australia, Product will be sent within 3-5 Business days.
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If product Not instock AUS, a 3-4 week lead time will apply.
RETURNS POLICY
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at admin@speedtekautoracing.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Please note, a restocking fee of 15% will apply to any returned goods.
You can always contact us for any return question at admin@speedtekautoracing.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.
