ZF Design
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The best Subaru manual transmissions in Colorado! Serving the Denver/Metro area and nearby cities.
Every built Subaru block should have pinned mains and a vertical line bore with torque plates... otherwise you're just asking for oil pressure problems and spun bearings.
09/25/2026
Our good friends over at DirtFish recently picked up a X Shift Gearboxes sequential gearbox for one of their rally cars! Stay tuned for some upcoming videos of them having fun with it!
09/15/2026
A little h6 work to finish off the week!
All Subaru cranks can use improvements in balancing!
09/02/2026
08/31/2026
08/20/2026
Another busy week of gearbox builds! From STI to WRX to NA!
transmission
26 additional pins on the mainline help keep oil to your connecting rods!
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Address
4600 Wadsworth Boulevard
Wheat Ridge, CO
80033
Opening Hours
| Monday | 9am - 5pm |
| Wednesday | 9am - 5pm |
| Thursday | 9am - 5pm |
| Friday | 9am - 6pm |
| Saturday | 11am - 4pm |
| Sunday | 11am - 4pm |