House the inboard tripod at the differential end of the longer half shaft.
The housing depth sets how much plunge and angle the joint can accommodate.
No part-specific design process is documented. The DriveTrain subsystem design process applies: 1. Set gearing from the tractive force diagram, top speed and the event speeds actually seen (autocross top speed 69 mph, endurance 72 mph, gear-limited top speed 82 mph). 2. Design the carriers non-adjustable with a fixed pin, integrated with the engine pins, to reduce assembly complexity and failure points and remove the need for weld-on carrier mounts on the frame. 3. Analyse the carriers at acceleration and deceleration load cases with a 2.0 shock loading factor. CR26I LH carrier at 39 lb-ft with shock: 32.949 ksi peak von Mises, minimum FoS 1.211, 0.013 in average axial bearing bore deflection. RH carrier: 9.432 ksi, FoS 4.229, 0.001 in. 4. Set the half shaft length with a custom measuring jig so the tripod travel range cannot be exceeded, then groove for retaining rings. 5. Validate on track and by inspection of the wear surfaces after testing.
Milled on the CNC.
Steel.
Fault Vault, 2026-07-12, CR26I, Manufacturing, Compromised Failure. Work-holding moved during the second plunge operation of the second mill setup, making the tripod pocket too large and the part unsalvageable. Corrective actions: reduce feed and plunge, pre-drill for the clearing operation, use the flower petal holes to re-probe, and check the stock and vice after every operation.
Dimensions called out on the cost report drawings. These are the figures printed on the drawing, not a labelled specification; open the drawing itself for what each one refers to. RCV_FSAE_Drexler_Inboard_Tripod_Housing-Long (as drawn): 17.36, R1.74, 4.00, R0.40, 27.99, 2.80, 57.93, 5.79, 166.50, 16.65 Source: Cost report drawings: CR25/Powertrain/Design/Y - Cost Report Drawings/Drivetrain/RCV_FSAE_Drexler_Inboard_Tripod_Housing-Long.pdf; CR26i/Powertrain - IC/Design/Y - Cost Report Drawings/Drivetrain/RCV_FSAE_Drexler_Inboard_Tripod_Housing-Long.pdf; CR27i/.Powertrain/Design/Y - Cost Report Drawings/Drivetrain/Archive/RCV_FSAE_Drexler_Inboard_Tripod_Housing-Long.pdf Quantity per car, as costed: 1
Nothing in CrimsonStorage covers these yet.