Discount truck transmissions and parts
New, used and rebuilt heavy duty truck transmissions, the parts to repair them, and a free library of Fuller service manuals. Pro Gear and Transmission in Orlando, shipping worldwide since 1997.
Discount Truck Transmissions is run by Pro Gear and Transmission, Inc., a heavy duty drivetrain shop in Orlando, Florida. We sell complete transmissions, new, used and rebuilt, and the parts to repair them: gears, shafts, bearings, synchronizers, seals, air system parts and complete rebuild kits. If you would rather have your own unit rebuilt, our shop does that too.
Transmissions by make
Eaton Fuller
New, used and rebuilt Fuller transmissions, 9 to 18 speed, mid-range and AutoShift, plus Fuller parts.
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Mack
Triple countershaft Mack transmissions, new, used and rebuilt, and Mack parts from single gears to overhaul kits.
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Spicer
Spicer Easy-Shift and Pro-Shift transmissions, 5 to 18 speed, new, used and rebuilt, and auxiliary units.
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Rockwell and Meritor
Rockwell transmissions new, used and rebuilt, plus a list of the Rockwell gears, shims and kits we supply.
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ZF
ZF 5 and 6 speed manual transmissions, AS Tronic, TC Tronic and Ecomat units, and ZF parts.
View detailsAll truck transmissions
Every make we sell and rebuild, plus how to order the right unit the first time.
View detailsTransmission parts
Most calls are for a part, not a whole transmission. Read us the model and serial number from the transmission ID tag, or the part number stamped on the old part, and we will match it and quote it. Browse by make on the truck transmission parts page, or shop transmission parts and rebuild kits in our online store.
Free Fuller service manuals
We keep a library of Eaton Fuller service manuals and troubleshooting guides as free PDFs, from the RT-610 and RTO-6613 to the FR, RTLO, AutoShift and UltraShift families. Start at the Fuller transmission service manuals index and look up your model.
Why buy from us
- We rebuild transmissions in our own shop in Orlando, and we can install on site.
- Stock units ship the same day, and we ship anywhere in the world.
- We buy cores. Tell us what you have when you call.
- One call covers the whole job: if you need ten parts for a rebuild, we can quote them all.
Need a transmission or a part?
Read us the model and serial number off the transmission ID tag, or the part number off the old part. We will find it, price it and ship it.