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Winning the feature means you have to have a tough tranny in your derby car.  Here you will find some of the best products on the market for making your tranny bullet proof.  We're adding new stuff all the time so keep checking back!
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Ultra bell
JW Performance Ultra Bell-TH400 to Small Block Ford
Our Price: $399.00

Stock bellhousings can't withstand the punishment of today's top derby's. You don't want a broken transmission bellhousing to keep you from winning the feature. Using the latest technology, J.W. Performance has developed the Ultra Bell bellhousings. They are designed to be certified flexplate shields and allow for special motor and transmission combinations to be easily mated together. J.W. Performance Ultra Bell bellhousings are manufactured from one-piece cast aluminum, making them 600 times stronger than stock bellhousings. They are capable of taking a beating and still deliver power to the rear end. Ultra Bell's are designed to fit under most stock floorboards, and are made in the USA.

Stock bellhousing must be cut off of transmission. This bolts directly to front pump. Bolts included. Will work with OEM 12 in. torque converters and smaller. This bell housing bolts a GM TH400 Automatic to Ford Windsor small block.

This item is not normally stocked and takes about 1 week extra to order in. Select for 157 tooth or 164 tooth fly wheel

If you don't see the transmission/engine combo you want (like small block Ford to Powerglide) then just give us a call. We can get most Ultra Bell's that JW Performance makes.
Ultra bell
JW Performance Ultra Bell Bellhousing-LS
Our Price: $386.50

Stock bellhousings can't withstand the punishment of today's top derby's.  You don't want a broken transmission bellhousing to keep you from winning the feature.  Using the latest technology, J.W. Performance has developed the Ultra Bell bellhousings. They are designed to be certified flexplate shields and allow for special motor and transmission combinations to be easily mated together. J.W. Performance Ultra Bell bellhousings are manufactured from one-piece cast aluminum, making them 600 times stronger than stock bellhousings. They are capable of taking a beating and still deliver power to the rear end.  Ultra Bell's are designed to fit under most stock floorboards, and are made in the USA.

Stock bellhousing must be cut off of transmission. This bolts directly to front pump. Bolts included. Will work with OEM 12 in. torque converters and smaller.

GM TH400 Automatic to GM Small Block GenIII/IV LS Series

If you don't see the transmission/engine combo you want (like small block Ford to Powerglide or small block Ford to TH400) then just give us a call.  We can get most Ultra Bell's that JW Performance makes.
Ultra bell
JW Performance Ultra Bell Bellhousing-TH400/350
Our Price: $322.92

Stock bellhousings can't withstand the punishment of today's top derby's.  You don't want a broken transmission bellhousing to keep you from winning the feature.  Using the latest technology, J.W. Performance has developed the Ultra Bell bellhousings. They are designed to be certified flexplate shields and allow for special motor and transmission combinations to be easily mated together. J.W. Performance Ultra Bell bellhousings are manufactured from one-piece cast aluminum, making them 600 times stronger than stock bellhousings. They are capable of taking a beating and still deliver power to the rear end.  Ultra Bell's are designed to fit under most stock floorboards, and are made in the USA.

Stock bellhousing must be cut off of transmission. This bolts directly to front pump. Bolts included. Will work with OEM 12 in. torque converters and smaller.

GM TH400 or TH350 Automatic to GM small block/big block.

If you don't see the transmission/engine combo you want (like small block Ford to Powerglide) then just give us a call.  We can get most Ultra Bell's that JW Performance makes.
Floor Mount Gas Pedal and Cable Shifter Kit
Our Price: $299.00

This Kit will include one Floor Mounted Gas Pedal and a 350/400 Cable Shifter.  This is over a 10% discount.
Ford Cable Shifter for either AOD or C6 Transmissions
Our Price: $212.00

New for 2016 Ford Cable Shifter for people running either a AOD transmission or the C6 tranny. The Cable Shifters that you have all come to love is now here for Ford Transmissions. Same machined handle with its great gripping power, with it heavy ball detent and 6 foot cable. Bracket bolts to the transmission pan bolts. Ball lock pin locks you into park and keeps you out of park while your derbying. **AOD will need to have the washer welded onto your linkage, and C6 needs the bracket attached as photo shows.** PS Please excuse my photos, am still getting us to editing photo backrounds.
3 Speed Manual Saginaw Transmission Cable Shifter
Our Price: $199.00

All new for 2016 DerbyParts.com Cable Shifter! DerbyParts.com has an all new 3 Speed Saginaw cable shifter for your derby car. This shifter is perfect for giving you flexibility in setting up your car. It can be mounted to the cage, the floor or anywhere else you want. The 6" machined aluminum handle looks great and gives you a great grip. The tranny bracket bolts to the tail housing bolts and holds the shift cable in place. Detents engage you into neutral.
New for 2015, we have a super heavy duty cable! This cable is 6' long and is the same cable used for our gas pedal just in a shorter length.

Available for either Standard pattern or Reverse patter( 1st Forward-Back Reverse )


Nerat Steel Tail Shaft
Nerat Steel Tail Shaft
Our Price: $199.00

All steel custom made tail shaft from Brian Nerat. This tail shaft is machined from solid steel and goes great with our Nerat bell housing and tranny pan plate.

TH400 short tail shaft configuration.
**Item will come separate, right from the manufacturer**



electric fan tranny cooler
Derale Transmission Cooler - Electric Fan
Our Price: $179.00

This is a good, affordable electric fan tranny cooler that can be cage mounted or just about anywhere you want. An efficient 16-pass tube-and-fin cooler coupled with a Tornado fan and aluminum brackets makes this unit ideal for the toughest derby's.

Mounts anywhere space permits
Electric fan supplies optimum air flow
16 pass core
650 CFM reversible Tornado electric fan
Built with AN 6 male fittings
Two 3/8" hose barb adapters included
16-3/4" wide, 11-1/2" tall, 5" thick
derby car shifter, cable shifter
DerbyParts.com Cable Shifter
Our Price: $175.00

All new for 2015 DerbyParts.com Cable Shifter! DerbyParts.com has an all new cable shifter for your derby car. This shifter is perfect for giving you flexibility in setting up your car. It can be mounted to the cage, the floor or anywhere else you want. The 6" machined aluminum handle looks great and gives you a great grip. The heavy duty ball detent keeps you in gear and can be adjusted to get the feel you want. The tranny bracket bolts on the side of the tranny with the pan bolts and holds the shift cable in place. The ball lock pin locks you in park with your are stopped and keeps you locked out of park when you are derbying.

New for 2015, we have a super heavy duty cable! This cable is 6' long and is the same cable used for our gas pedal just in a shorter length.

Works for both 350/400 transmissions. Same Bracket for both transmission now.

LS Steel Flex Plate
Our Price: $119.00

Platinum Series flexplates have the performance you need to use your LS engine in a derby car. The combination of top quality and reasonable pricing make this a easy decision to add to your set up.

These Platinum Series Flexplates are engineered to handle extreme duty applications like demolition derby and designed to take the punishment of today's high horsepower engines. The 4mm thick centerplate provides a solid foundation. Ring gears are precision welded to meet SFI specifications, utilizing robotic machiner and cold-welding process.

   SFI 29.1 certified
   Direct bolt on component
   Forged one-piece steel ring gears
   0.035" thicker than stock flexplates
   Constructed from cold-rolled premium steel
   Long lasting platinum finish that helps prevent rust
   Features double welded ring gears for added durability

For the 1997-Present GM LS1, LS2, LS6 engines