The NP205 is still a fine solution for the 4wd crowd, though the ratios are not all that great there are many doubler options and the lowmax 3:1.
Well power levels are rising lately and there are answers out there.
Just showing off some bling :afro:
http://www.northwestfab.com/ makes a "titan" output shaft and is making a doubler unit similar to off-road designs that will come with a larger input shaft.
More info (http://www.pirate4x4.com/forum/motor-tranny-t-case-performance/1463706-sneak-peek-titan-series-hd-np205-rear-output.html)
http://offroaddesign.com/catalog/Magnum%20Box.htm has their new magnum doubler that comes with a redesigned input shaft to replace the common intermediate shaft.
More info (http://www.pirate4x4.com/forum/general-4x4-discussion/1082680-ord-magnum-box-w-np205.html)
Image of the ORD reduction unit on an np205,
Image of magnum input shaft butted to the reduction input meant to accept the TH400 output
Image of magnum input shaft next to stock 10 spline input (input bearing must be large bore case or have case machined to accept larger bearing)
Image of new Titan output shaft and larger bearing retainer (speedo housing must be machined larger)
Well power levels are rising lately and there are answers out there.
Just showing off some bling :afro:
http://www.northwestfab.com/ makes a "titan" output shaft and is making a doubler unit similar to off-road designs that will come with a larger input shaft.
More info (http://www.pirate4x4.com/forum/motor-tranny-t-case-performance/1463706-sneak-peek-titan-series-hd-np205-rear-output.html)
http://offroaddesign.com/catalog/Magnum%20Box.htm has their new magnum doubler that comes with a redesigned input shaft to replace the common intermediate shaft.
More info (http://www.pirate4x4.com/forum/general-4x4-discussion/1082680-ord-magnum-box-w-np205.html)
Image of the ORD reduction unit on an np205,
Image of magnum input shaft butted to the reduction input meant to accept the TH400 output
Image of magnum input shaft next to stock 10 spline input (input bearing must be large bore case or have case machined to accept larger bearing)
Image of new Titan output shaft and larger bearing retainer (speedo housing must be machined larger)