40 years selling manual
transmission partsAmerican-owned and
operatedUnrivalled customer
service
Manual transmission parts & transfer case components
Find Your Lane
Upgrade your manual transmission and transfer case with top-quality components built for performance and reliability. Whether you’re rebuilding, repairing, or enhancing, we’ve got the parts to keep you in gear.
Owners
Find the components you need for your manual gearbox or transfer case. Shop a selection of premium components.
Repair Shops & Dealers
Our member shops and dealers can unlock discounts on transfer case components and manual transmission parts. Log in, shop, and save!
The transfer case and transmission parts you choose when quality matters
Our Products
You’ve kept your manual transmission purring for years, so you know that top-quality parts are the key to flawless power distribution and smooth shifting. Luckily for you, we only stock quality.
Transfer Case Components
Build a transfer case that seamlessly distributes power and changes drive modes without a hitch.
Manual Transmission Parts
Move into the fast lane with precision-built input shafts and cluster gears that make your manual transmission purr.
Astro Built Transmissions
Shop the transmissions we’ve put our stamp on. These remanufactured gearboxes put the power to the ground effortlessly.
Astro Built Transfer Cases
Enhance output to all wheels with Astro-built transfer cases. We’ve built these beauties in-house, so you know they’re quality.
We’re a Tremec Elite Parts Distributor
All the top brands
We’re the top-rated source for Tremec manual transmission parts in the US. Just call us with your tag info, and we’ll figure out the parts you need for your 5-, 6-, or 7-speed manual transmission.
Shop Tremec partsComplete manual transmission and transfer case assemblies
Assembly Process
Need a full rebuild? We’ll tear down your core, clean it to perfection, and inspect it with a fine-toothed comb.
After a careful reassembly, we’ll Dyno-test your transmission to ensure it’s performing at peak in every gear. We’ll find and fix excessive noise, leaks, shifting problems, vibrations — anything that might compromise your transmission before it’s installed.
Core tear-down
Clean and inspect
Reassembly
Dyno-test
Want a powerful, super-smooth transmission under your hood? So do we.
How can we help?
Our goal isn’t sales — it’s incredible customer service. We’ll help you find the parts you need, even if we don’t stock them.
Shop the website
We stock parts for 5-, 6-, and 7-speed manual transmissions. Whatever you need, you’ll probably find it here.
Call the team
If you can’t find your manual transmission components in our store, call the team. They’re always ready to talk shop.
We’ll figure it out
We’ll help you identify the parts you need and find the best way to get them. If we can’t help, we’ll tell you who can.
The parts shop gearheads rave about
Testimonials
Folks who know manual transmissions call us their go-to components shop.