Transfer Case Parts Accessories Drivetrain. Stay up to date on new products, promotions, and moreAtlas 4 Speed Transfer Case Builder. Atlas 4 Speed Transfer Case Advance Adapters has built upon the proven design of the Atlas 2, to create the revolutionary Atlas 4sp. No other transfer case on the market today has 3 separate low range ratios built into a single unit. This transfer case was designed for the off road enthusiast that likes to tackle a large variety of terrain with one vehicle. Selecting one low range ratio that works well for mud, sand and rock crawling, is a compromise but the Atlas 4sp overcomes this limitation. One transfer case that is perfectly suited to any terrain that you may want to conquer. The 4. SP has essentially two parts. The first is the reduction housing. RK4011-e1500684154383.jpg' alt='Jeep Transfer Case Drop Kit Install' title='Jeep Transfer Case Drop Kit Install' />This housing holds a planetary assembly that has a gear ratio of 2. It has one shifter coming out of the top to select the desired range. The planetary is not a synchronized shift on the fly design and must be operated when the vehicle is stopped. The main case still retains the shift on the fly capability just like the standard Atlas. The reduction housing shifter is designed for a cable shifter. The second part of the 4. SP may look the same as the standard Atlas, but it does have some differences. The main case of the 4. SP is the same raw casting, but has some machining variations to make it into a 4. BDS Suspension 6 Lift Kit 1987 1995 Jeep Wrangler YJ. Backed by the BDS No BS Lifetime Warranty. SP. The main case functions independently from the front reduction housing and retains all of the normal Atlas features front and rear outputs controlled independently, and the front only option. All of the gears are the same. The front output uses all of the same parts along with the cluster. The strength of this unit is not an issue. We use a planetary assembly that was originally run in a NP2. HD transfer case. The six planetary gear setup has proven its durability and has been used in countless heavy duty vehicles. Other attributes to the planetary assembly include a very quiet operation, easy shifting, and low rolling resistance. When all of this is put in front of a legendary Atlas Transfer Case, you get the best combination of gear ratios and reliability. The 4. SP units will fit nearly all applications that the standard Atlas will bolt to. These will include spline counts of 2. The unit has a circular bolt pattern on the front, identical to the one found in Jeep, Ford Dodge vehicles. We have a variety of different adapters available to retrofit the 4. SP into nearly any application. The twin sticks for the main unit can be either the standard linkage or the cable linkage. The standard linkage is offered in a variety of custom packages available for particular vehicles and can be modified to fit many custom applications. The installation of an Atlas 4 speed should be nearly the same as the standard Atlas 2 speed. The Atlas 4 speed is just a bit longer. We do not recommend flat towing vehicles equipped with the 4 speed due to the additional bearings used in the planetary housing. Since every Atlas transfer case is custom built to order, the unit will be customized to your vehicle. Please browse this site or give us a call to determine how to configure the ultimate transfer case, and have us build you one for your vehicle. Current Average Estimated Wait Time for New Orders 4 5 WeeksFlat Tow Options will begin to ship forth quarter of 2. Video Atlas 4 Speed Transfer Case. Advance Adapters has built upon the proven design of the Atlas 2, to create the revolutionary Atlas 4sp. No other transfer case on the market today has 3 separate low range ratios built into a single unit. This transfer case was designed for the off road enthusiast that likes to tackle a large variety of terrain with one vehicle. Jeep-907S-1.jpg' alt='Jeep Transfer Case Drop Kit Install' title='Jeep Transfer Case Drop Kit Install' />Selecting one low range ratio that works well for mud, sand and rock crawling, is a compromise but the Atlas 4sp overcomes this limitation. One transfer case that is perfectly suited to any terrain that you may want to conquer. The 4. SP has essentially two parts. The first is the reduction housing. This housing holds a planetary assembly that has a gear ratio of 2. It has one shifter coming out of the top to select the desired range. The planetary is not a synchronized shift on the fly design and must be operated when the vehicle is stopped. The main case still retains the shift on the fly capability just like the standard Atlas. The reduction housing shifter is designed for a cable shifter. The second part of the 4. BDS Suspension 4 Lift Kit for the 1976 1986 Jeep CJ5, CJ7, Scrambler. Backed by the BDS No BS Fine Print Warranty. AM 10PM Monday Thursday 7AM 7PM Friday 8AM 5PM Saturday Closed Sunday All times are US Central Standard Time CST. Atlas 4 Speed Transfer CaseAdvance Adapters has built upon the proven design of the Atlas 2, to create the revolutionary Atlas 4sp. No other transfer case on the. This easy bolton kit allows for better driveshaft angles reducing driveline vibration. SP may look the same as the standard Atlas, but it does have some differences. The main case of the 4. SP is the same raw casting, but has some machining variations to make it into a 4. SP. The main case functions independently from the front reduction housing and retains all of the normal Atlas features front and rear outputs controlled independently, and the front only option. All of the gears are the same. The front output uses all of the same parts along with the cluster. The strength of this unit is not an issue. We use a planetary assembly that was originally run in a NP2. HD transfer case. The six planetary gear setup has proven its durability and has been used in countless heavy duty vehicles. Other attributes to the planetary assembly include a very quiet operation, easy shifting, and low rolling resistance. When all of this is put in front of a legendary Atlas Transfer Case, you get the best combination of gear ratios and reliability. The 4. SP units will fit nearly all applications that the standard Atlas will bolt to. These will include spline counts of 2. The unit has a circular bolt pattern on the front, identical to the one found in Jeep, Ford Dodge vehicles. We have a variety of different adapters available to retrofit the 4. SP into nearly any application. The twin sticks for the main unit can be either the standard linkage or the cable linkage. The standard linkage is offered in a variety of custom packages available for particular vehicles and can be modified to fit many custom applications. The installation of an Atlas 4 speed should be nearly the same as the standard Atlas 2 speed. The Atlas 4 speed is just a bit longer. We do not recommend flat towing vehicles equipped with the 4 speed due to the additional bearings used in the planetary housing. Since every Atlas transfer case is custom built to order, the unit will be customized to your vehicle. Please browse this site or give us a call to determine how to configure the ultimate transfer case, and have us build you one for your vehicle. CASE Material 3. T6 Heat Treated Aluminum Weight 1. INTERNAL COMPONENTS Gears Helical Cut Planetary Gears 6 Gears Helical Cut Bearings Needle Taper Rollers Synchronizers Borg Warner Available Input Shaft Splines 2. Youth Fitness Program Names on this page. Tail Shaft H. D., 3. Spline Front Output 3. Spline RATIOS Low Range 1. High Range 1 1 LUBRICATION Quarts 2. Liters 2. 3. 6 We are currently shipping Redline 7. W 9. 0 GL4 with all new Atlas units, this along with the other lubricants that are printed in our Atlas Installation Guide are the recommended fluids for the Atlas. LENGTH COMPARISON Atlas Short tailhousing is 1. Atlas Long tailhousing is 1. New Process 2. 31 is 2. New Process 2. 41 Rock Trac TC is 1. Dana 3. 00, 1. 2 Choosing a Gear Set Since there are numerous engine, transmission, and axle combinations, the need for various transfer case gearing options has increased. The 2 speed Atlas transfer case now has 6 different low gearing options to suit the needs of your driving habits and your drivetrain components.