STaK 4x4
STaK 4x4 transfer cases are CAD-designed and CNC-built using 356 heat-treated aluminum. Each of the available units is designed to be consistent with factory t-case offerings so it would satisfy many applications. STaK cases can also be clocked 360 degrees in four degree increments so it will bolt up to most transmissions. All Monster Box units are offered in left or right hand drop configurations; use a heavy-duty 32-spline front and rear output shaft; can be equipped with an electronics speed sensor; and are available with 1310, 1350, or 1410 CV-style yokes.
The gears are constructed from heat-treated 8620 alloy and ride on 8620 carburized shafts and Timken and SKF tapered roller bearings. Multiple STaK 4x4 transfer cases are available to choose from. The Monster Box is a three-speed t-case with gear options of 5.44:1, 3.05:1, and 1:1; 4.33:1, 2.43:1, and 1:1; and 3.75:1, 2:10:1, and 1:1. The Monster Box 2 is a two-speed unit that offers a choice of Low gear ratios of 3.75:1, 4.33:1, or 5.44:1.
The Monster Box B is a three-speed transfer case designed for vehicles with narrow frame rails, such as early Ford Broncos and custom rock buggy applications. There is also a Mini Monster three-speed `case that can be fit with TJ-specific shifters.
JB Conversions' LoMax 205
The LoMax 205 from JB Conversions uses a nodular iron casting machined to exact tolerances taken from the original New Process drawings. The LoMax case also offers more internal ribbing and wall thickness than the original NP205. It offers a 3:1 gear set that is stronger than the original New Process gears and with a wider tooth width. The LoMax 205 uses 32-spline front and rear output shafts with 1350 yokes. The LoMax is available completely assembled and ready to bolt in to your vehicle and also as a kit version that requires assembly. It offers a GM six-bolt or GM figure-eight (race track) mounting pattern and can be clocked for repositioning.
 We love the Dana 300 for many...  We love the Dana 300 for many reasons. Its relationship to the CJ series Jeep is just one but its ability to be torn apart and re-assembled in a lunch hour makes it one of our all-time favorite transfer cases. Available low gear sets are available aplenty and twin-stick shifters are abundant as well. The unit shown uses a STaK D300 two-piece transfer case housing manufactured from cast 356 alloy aluminum. The STaK housing allows the Dana 300 to be situated in driver- or passenger-side drop configurations making the Dana 300 a suitable swap candidate for many applications, including Jeep TJs. |  The NP205 has limited vulnerabilities...  The NP205 has limited vulnerabilities but its compact size doesn't allow use of low gear sets. JB Conversions has a solution with its LoMax 205 Conversion. The LoMax 205 uses a nodular iron casting that features additional internal ribbing and a thicker case wall. The conversion also features a stronger-than-stock 3.0:1 gear set that uses wider-than-stock teeth. The LoMax 205 also retains the stock overall case dimensions. |  The stock Toyota Land Cruiser...  The stock Toyota Land Cruiser transfer case is vulnerable, especially when subjected to V-8 swaps. The cast-iron case is easily split from excessive torque loading. Advance Adapters offers a great alternative in its Orion replacement transfer case housing. |