Silver transfer case with black shift levers and a shift boot, on a work surface.

Dual NP241 Transfer Case Kit – Complete DIY Dual Case Kit for 1973–1991 Chevy & GMC Squarebody

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Include Slip Yoke Eliminator Kit
Include cable shifter assembly

$999.95

Unlock extreme crawl ratios and full TwinStick control with this complete Dual NP241 transfer case kit—built and tested on Squarebody K-Series trucks. Designed for 1973–1987/91 Chevy & GMC Pickups, Blazers, and Suburbans, this setup combines precision-engineered components from Froelich Suspension, JB Custom Fabrication, and JB Conversions. Everything you need for a proven dual case swap in one package.

Includes:


  • Froelich Suspension Dual NP241 Adapter Kit – Billet adapter housing, clocking ring, adapter shaft, weld-in insert, and hardware.


  • JB Custom Fabrication Dual Cable Shifter (Blazin’ Bittles Spec) – Flush-mount base, 48" cables, boot kit, billet knobs. Fits stock shifter location with 1" body lift.


  • JB Conversions SYE Options – Choice of standard, tone-ring, or full-output shaft SYE kits for stronger, CV-friendly driveline geometry.


Fitment Notes:

  • Fits 1981–1991 K5 Blazer, Suburban, and K-Series pickups.


  • Requires two NP241C (passenger drop) cases – not included.


  • One case must be converted to a front range box (welding required).


  • Works with factory crossmember, but tailshaft support is recommended.


  • Requires custom driveshafts.


Why This Kit?


This isn’t a universal setup—it’s tailored for Squarebody builds. With billet adapters, precision shifters, and SYE upgrades, you’ll get maximum strength, smooth control, and crawl ratios built for serious off-road use.