Ready for a 5 or 6 Speed PerfectFit™ Kit?
FAST Shipping, No Deposits!

™ Transmission Kits

Buy before August 31 and receive free shipping to the lower 48 states on all PerfectFit™ Transmission Kits, discounts available on Transmission Kit purchases outside the lower 48.
Offer Expires 08/31/2014. Cannot be combined with other discounts or offers.

Why Wait?  Affordable Financing Now Available for Transmission Kit Purchases

SST is proud to offer 90 days same-as-cash financing or choose from simple interest terms of 6 to 60 months with approved credit. 


Putting an overdrive in your classic has never been easier!

For more information, call your sales representative at 888-609-0023.
Upcoming Car Shows - August 22-24th
SST Show Tent
Corvettes at Carlisle is the largest Corvette event in the world and we'll be there!  Come join us August 22-24th.  We will be on the Midway.  Don't forget to ask us for our show special.  Order at the show and we'll start processing.  Your transmission will SHIP in 5 days or less!

We have more car shows on the way, check out our Upcoming Shows page for the latest updates, and of course we'll post on Facebook and Twitter.

Product Spotlight - Special Offers
GM 621 Bellhousings- In Stock, Ships TODAY! $269.95
This new bellhousing is cast from thick wall titanium aluminum alloy, CNC machined to provide precise location of mounting and dowel pin holes, and the center bore that locates the gearbox. SST's bellhousing can be used with all factory type clutch linkage parts while the design maintains its original style appearance. The bellhousing weighs 15 pounds, works with a factory style 168 tooth flywheel and the appropriate standard GM starter. It even includes a new inspection cover and hardware making it a seamless installation process.

SST also produces a variation of this bellhousing which works specifically with the GM LS engine platform and a hydraulic clutch actuator. It is also on sale for $249.95 (the LS bellhousing does not come with an inspection cover).

Both bellhousing styles are compatible with the following transmissions:
  • Tremec 
  • TKOMuncie 4 speed
  • Borg-Warner Super T10
  • Saginaw 3 and 4 speed
  • Any manual transmission sharing this same bolt pattern and input shaft length requiring a 4.625" register hole.

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Featured Products

T56 Front Shift Kit
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Hydraulics Kit
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Mustang PerfectFit Kits IN STOCK!!!!
It's our best kept secret - we have TKO Perfect Fit Kits for Mustangs!  If you haven't checked out our Tremec TKO 5 Speed kit for Mustangs, you need to head to our website and read about the superior design we've made for Mustangs and Cougars.

It will be the best upgrade you make to your car!
Mopar or No Car? Keep the Mopar, We Have Kits IN STOCK!!!!

Don't leave your Mopar in the garage!  If you swap out your transmission for a 5 speed, you'll find your car much more fun to drive, it will get better fuel milage and be able to keep up with freeway traffic. Check out the kit page for your car.

SST Proves a PerfectFit™ for Corvette Customer
TKO Install 1976 Vette

JD recently upgraded his old automatic to a new Tremec TKO 5 Speed PerfectFit™ Kit.  After installation, he sent us some photos and included a review from him and his mechanic.


Hello Tami and Jack,

I received a nice card in the mail.  Thank you.


Just a note to tell you the transmission kit I purchased for my '76 Corvette from Silver Sport Transmissions was delivered in good order to my mechanic, Vernon Dickson.  He owns a shop and worked in the install between his regular customer jobs.  He was pleasantly surprised that your kit seemed to be complete instead of other so called complete kits which are short several parts to actually be "complete" and then have to cherry pick other sources for them.  I did have to buy a different starter, the starter from the previous automatic transmission will not work with the manual transmission.


Tami, I would also like to brag on you.  You were thorough and answered all my questions or got the answer I needed.  Your attitude, knowledge and ability to handle a quote (and a customer) and make a couple of requested changes on the quote helped me make the decision to make my purchase from you.


Jack, I've had a great experience with Silver Sport Transmissions.  I have talked up your company and already have 2 other local prospects who will be contacting SST when they order their Tremec transmission.


Thanks again, for the great service, product, and follow up.  If you ever need a reference....




JD Prather  -  Skiatook, OK


Thank you, JD!  If you want to see more photos of JD's car and the installation, click here.  Want to see your car featured in our newsletter?  Send a testimonial and photos to

Silver Sport Transmissions - Authorized Tremec Re-seller
Custom Engineered Kits and Components

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2250 Stock Creek Blvd., Rockford, TN 37843