Product photographs
Photograph 1 of 6
DOCUMENTED FACTS
Part details
- System
- Drivetrain shifter
- Models named in the evidence
- Unspecified
- Part type
- Alternative
- Price
- $1,650
- Price checked on
- 2 Aug 2026
- What the price includes
- Conversion price excluding rebuild labour, shifter and cables.
- Supplier price check
- Check price with supplier ↗ (opens in a new tab)
- Availability
- Available
- Availability checked on
- 2 Aug 2026
- How fitment is supported
- Custom service
- Evidence strength
- Maker or supplier claim
- Organisation in the evidence
- California Motorsports Inc
- Organisation classification
- Specialist fabricator
- Trading/contact status
- Active
- Trading/contact status observed
- 3 Aug 2026
- Organisation website
- https://californiamotorsports.net/collections/kit-car-parts-and-accessories
Availability context
The item was not marked sold out in a CMS collection that states all represented products are in stock unless otherwise noted.
Fitment and scope
CMS lists specified G50/G64 gearbox types and all G50 five- and six-speed variants. Its kit-car collection includes Ultima owners, but the product page does not claim a bolt-in Ultima installation and excludes rebuild labour, shifter and cables.
Sources for this part
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California Motorsports kit-car parts collection
Current CMS collection addresses builders and owners of Ultimas and other kit cars, lists supported Porsche gearbox families and states that products are in stock unless otherwise noted; it marks three captured products Sold Out.
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California Motorsports G50 side-shifter conversion
Current side-shifter conversion lists supported G50/G64 types and excludes rebuild labour, shifter and cables; its page makes no bolt-in Ultima claim.
Other information about the supplier
These sources concern the supplier or other products. They do not establish fitment for this part.
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California Motorsports G50 cable-shift kit
Supplier states that the cable-shift kit was originally designed for Factory Five GTM and Ultima GTR cars and supports listed 1990-1998 G50 types; the current collection marks it Sold Out.
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California Motorsports inverted-transaxle oil pickup
Current service covers listed G96/G97/GT2/GT3 inverted transaxles, states that the stock pickup will not function inverted, and requires gearbox disassembly and shipment to CMS.
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California Motorsports KEP LS-to-G50 clutch package
CMS describes a KEP flywheel, ring gear, pressure plate, release bearing and organic-disc package for 1990-and-later G50 five- and six-speeds; the current collection marks it Sold Out.
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California Motorsports Tilton LS-to-G50 flywheel
Supplier page explicitly mentions Ultima and describes an LS1-LS7 to listed Porsche-transaxle flywheel and 7.25-inch clutch assembly using starter 996.604.107.02 and a KEP adapter; the current collection marks it Sold Out.