NNBS cv axles on knuckle lifted NBS
#13
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Posted this up on GMFS, thought I would post here for anyone curious about the NNBS axle swap for lifted NBS trucks. Big thanks to sharpshooter for the discovery.
The truck (2000 Silverado Z71 on 33's)
![Name: 2086A9F7-0B1E-494F-8954-1553F959E6B5_zpszdvv27ma.jpg
Views: 2915
Size: 188.5 KB](https://www.performancetrucks.net/forums/attachments/towing-offroad-performance-168/106270d1501268470-nnbs-cv-axles-knuckle-lifted-nbs-2086a9f7-0b1e-494f-8954-1553f959e6b5_zpszdvv27ma.jpg)
Old axles:
![Name: 707DBD0F-B9E5-4C08-8444-8312D93016FD_zpsd8njnbj8.jpg
Views: 2772
Size: 81.0 KB](https://www.performancetrucks.net/forums/attachments/towing-offroad-performance-168/106271d1501268470-nnbs-cv-axles-knuckle-lifted-nbs-707dbd0f-b9e5-4c08-8444-8312d93016fd_zpsd8njnbj8.jpg)
New NNBS axles from Cardone (about $40 each from RockAuto), note the much improved CV angle:
![Name: 07505C00-315E-45AC-AC3D-7A9D73BA4D45_zpsnd2oayjv.jpg
Views: 2985
Size: 103.9 KB](https://www.performancetrucks.net/forums/attachments/towing-offroad-performance-168/106272d1501268470-nnbs-cv-axles-knuckle-lifted-nbs-07505c00-315e-45ac-ac3d-7a9d73ba4d45_zpsnd2oayjv.jpg)
NBS old axle with 1 7/8" spacer vs NNBS axles
![Name: C82AD196-2E16-4C4F-969C-726DB46E5960_zps84a6ia3y.jpg
Views: 3924
Size: 112.5 KB](https://www.performancetrucks.net/forums/attachments/towing-offroad-performance-168/106273d1501268470-nnbs-cv-axles-knuckle-lifted-nbs-c82ad196-2e16-4c4f-969c-726db46e5960_zps84a6ia3y.jpg)
Took about 2.5 hours working slowly but with an impact. Pretty easy swap. I did have to disconnect the bottom of each shock and swing it out to fit the old axles out from in between the shock and sway bar end link.
The truck (2000 Silverado Z71 on 33's)
![Name: 2086A9F7-0B1E-494F-8954-1553F959E6B5_zpszdvv27ma.jpg
Views: 2915
Size: 188.5 KB](https://www.performancetrucks.net/forums/attachments/towing-offroad-performance-168/106270d1501268470-nnbs-cv-axles-knuckle-lifted-nbs-2086a9f7-0b1e-494f-8954-1553f959e6b5_zpszdvv27ma.jpg)
Old axles:
![Name: 707DBD0F-B9E5-4C08-8444-8312D93016FD_zpsd8njnbj8.jpg
Views: 2772
Size: 81.0 KB](https://www.performancetrucks.net/forums/attachments/towing-offroad-performance-168/106271d1501268470-nnbs-cv-axles-knuckle-lifted-nbs-707dbd0f-b9e5-4c08-8444-8312d93016fd_zpsd8njnbj8.jpg)
New NNBS axles from Cardone (about $40 each from RockAuto), note the much improved CV angle:
![Name: 07505C00-315E-45AC-AC3D-7A9D73BA4D45_zpsnd2oayjv.jpg
Views: 2985
Size: 103.9 KB](https://www.performancetrucks.net/forums/attachments/towing-offroad-performance-168/106272d1501268470-nnbs-cv-axles-knuckle-lifted-nbs-07505c00-315e-45ac-ac3d-7a9d73ba4d45_zpsnd2oayjv.jpg)
NBS old axle with 1 7/8" spacer vs NNBS axles
![Name: C82AD196-2E16-4C4F-969C-726DB46E5960_zps84a6ia3y.jpg
Views: 3924
Size: 112.5 KB](https://www.performancetrucks.net/forums/attachments/towing-offroad-performance-168/106273d1501268470-nnbs-cv-axles-knuckle-lifted-nbs-c82ad196-2e16-4c4f-969c-726db46e5960_zps84a6ia3y.jpg)
Took about 2.5 hours working slowly but with an impact. Pretty easy swap. I did have to disconnect the bottom of each shock and swing it out to fit the old axles out from in between the shock and sway bar end link.