Dave Folts (DFT) Billet Aluminum Boot Flanges | Air-Cooled VW Transaxle | CNC 6061 with O-Rings, Pair | Made in USA
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Tired of chasing gear-oil drips around the back of your air-cooled VW? These billet aluminum boot flanges from Dave Folts Transmissions (DFT) replace the thin stamped-steel parts VW used from the factory with a pair of solid, CNC-machined 6061 aluminum pieces sealed with O-rings. The result is a stiffer, flatter sealing surface that helps keep the oil in the transaxle where it belongs — and a clean, machined look that belongs on a performance build.
Dave Folts is one of the best-known names in air-cooled VW transaxles, building parts for street, off-road and race boxes. We stock the DFT parts that King Performance (kingvw61.com) carries, at the same price, with fast answers from a shop that works on these cars every day.
Fitment
- Air-cooled Volkswagen transaxles — Beetle, Karmann Ghia and VW-based dune buggies and off-road cars.
- A direct upgrade for the stock stamped-steel boot flanges.
Please confirm your application before ordering. Transaxles were built in several versions over the years. Tell us your year, chassis and whether your transaxle is swing-axle or IRS, and we will confirm these are the right parts before we ship.
Features & benefits
- CNC-machined 6061 billet aluminum — far stiffer than stamped steel, so the flange does not distort as it is tightened.
- O-ring sealed — the included O-rings help prevent oil leaks at the flange.
- Stronger than stock — built for performance and off-road transaxles that work harder than a factory box.
- Made in the USA by Dave Folts Transmissions.
- Sold as a pair — two flanges with O-rings, enough for both sides.
Specifications
| Manufacturer | Dave Folts Transmissions (DFT) |
| Material | 6061 billet aluminum, CNC-machined |
| Quantity | 2 flanges plus O-rings |
| Replaces | Stock stamped-steel boot flanges |
| Country of origin | USA |
| Use | Off-highway use only |
Installation notes
- Clean both sealing faces thoroughly and inspect for nicks or old gasket material before fitting.
- Lightly lubricate the new O-rings with gear oil so they seat without rolling or pinching.
- Tighten the fasteners evenly and in stages, in a cross pattern, to the factory specification for your transaxle.
- Check the gear-oil level after installation and look for seepage after the first drive.
- If you are not comfortable working on the transaxle, have a VW specialist fit them.
Frequently asked questions
Who makes these boot flanges?
Dave Folts Transmissions (DFT), in the USA.
What comes in the box?
Two billet aluminum flanges and O-rings.
Why billet instead of the stock stamped part?
Machined 6061 aluminum stays flat and rigid when tightened, and the O-rings give a better seal, so the flanges help stop oil leaks.
Will they fit my car?
They are made for air-cooled VW transaxles. Send us your year, model and transaxle type (swing-axle or IRS) and we will confirm fit before shipping.
Are they street legal?
King Performance lists these parts for off-highway use only.
Off-highway use only (per King Performance).
⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.