JD ZR1

Is there difference in the steering box/gear with non- F41 BB 1967 suspension and F41?

Velox

No. The 1967 F41 option included HD shocks and front/rear springs, HD front sway bar... it was not an option that changed the steering box. F41 included different lower rear shock/strut mounts to fit the HD shocks. The rear BB sway bar remained standard.

TCracingCA

If you don't have Power steering, a lot of people with F-41 who wanted performance would put the tie rods in the fast steer position, rather than the slow steer position, or put a bump steer correction block, which would essentially straddle both positions!

JD ZR1

Thanks for the responses. I did not think there was a difference. A friend with a 435 coupe wants to add F41. He spoke to a vendor who informed him that he needs: shocks, shock mounts, front coil springs, rear 7 leaf spring, front torsion bar and a steering gear box.