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It’s transfer case season and Zumbrota Drivetrain® has you covered for the upcoming winter. Get ahead of the curve this season and safeguard your driveline with a remanufactured transfer case from Zumbrota.
When rolling in and out of 4WD, you don’t want to be met with the sound of crunching and grinding gears or silence. We rely heavily on our drivetrain during the winter season and unit failures can happen frequently. Zumbrota has tried-and-proven remanufactured transfer cases ready and in stock for purchase.
Click here to shop transfer cases or continue reading to find one that fits your vehicle needs.
Transfer Case Breaking Points
Sometimes the transfer case will fail when you push the button or it just won’t work at all but it can be hard to tell when things went sideways. Zumbrota’s Sales Manager Josh Linnell says, “most of the time the damage has been done well before you hear anything. Some failures are just a worn part, some are more catastrophic; the result is the same. Transfer cases have a lot of metal-on-metal contact, factor in that most cars and trucks are going to last 200,000 to 300,000 miles nowadays and something as to give. Chains, clutches and/or viscous couplers are some of the common failure prone parts. And I must say, we see a lot that can be prevented by keeping the vehicle maintained.”
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As with any mechanical system proper maintenance is paramount. “Most units only hold about two quarts of fluid,” quips Linnell. “So, in the environment inside the case there’s a lot being asked of the fluid. On top of that, the transfer case is often overlooked when it comes to checking the fluid level and condition during a routine tune-up so the deck can be stacked against the transfer case.”
Linnell indicated that there’s another reason for transfer case problems that might not be apparent at first look. “The other is all four tires having the same diameter, not just all the same size on the side of the tire but the actual diameter of the tire. A difference here causes a load imbalance inside the unit and pre-mature wear.”
In-Depth Inspection Protocols
Zumbrota has been on the leading edge of gearbox remanufacturing since 1989; they have seen it all. Their process starts with superior inspection techniques. Quality inspections are conducted three times during the remanufacturing process. A pre-inspection ensures the unit is free of case cracks and stripped threads, identifies excessive wear, and catches OEM-related problems that many cores have. The second inspection is conducted during the remanufacturing process to ensure all component parts meet OEM specifications. Items under consideration include, shaft straightness, gear wear, and chain stretch. Then a final post-build inspection is done to ensure the transfer case has been built to strict Zumbrota standards.
Unrivaled Proprietary Cleaning
Zumbrota’s exclusive Hydro Blast rinse and media-blasting techniques are used on internal and external parts. These initial processes are followed up by a proprietary shot-enhanced deep cleaning that gives the transfer case a like-new look. In fact, many customers call and ask if they’ve been shipped a new unit by mistake.
From The Hands Of Craftsman
After the initial case inspection, Zumbrota technicians determine which parts have failed or worn and which ones can be reused. Viscous couplers, bearings, and all seals are always replaced. Any common wear items are also replaced. As part of the final inspection, each unit is spun tested to confirm proper shifting and to make sure the transfer case runs smooth and quiet. Each unit is shipped in a high-density plastic tote to help eliminate in-transit damage and make core return an easy R&R proposition for the customer.
When your transfer case fails getting back on the road is critically important. When you buy a Zumbrota transfer case, you’re investing in the confidence, satisfaction, and peace of mind that comes from a company that has been helping people since 1989. Some of the more popular transfer case families are highlighted below below.
NP243 TRANSFER CASE
RTC243G-1 for 1996-1999 GM/Chevy Yukon and Tahoe with 4L60E transmission
RTC243G-2 for 1996-1999 GM 1500 Trucks with 4L80E transmission
RTC243D-1 for 2002-2005 Dodge Ram 1500
RTC243D-2 for 2006-2012 Dodge Ram 1500
RTC243D-3 for 2006 Dodge Dakota & Mitsubishi Raider
RTC243D-4 for 2007-2009 Dodge Dakota
It will be important to know transmission when inquiring.
NP246 TRANSFER CASE
RTC246D-1 for 2006-2008 Dodge Ram 1500 Fits 23 Spline Input
RTC246D-2 for 2009-2010 Dodge Ram 1500 Fits 23 Spline Input
RTC246G-1 for 1999-2002 GM 1500 Trucks Fits 4L60E Transmission
RTC246G-1M for 1999-2002 GM 1500 Trucks Fits 4L60E Transmission, Includes Shift Motor
RTC246G-2 for GM 1999-2002 1500 Trucks w/ 4L80E Trans
RTC246G-2M for GM 1999-2002 1500 w/ 4L80E Trans
RTC246G-3 for GM GM 2003-2007 Pickup
RTC246G-3M for GM 2003-2007 1500 w/ 4L60E or 4L70E Trans
RTC246G-4 for GM 2003-2007 1500 w/ 4L80E Trans
NP261 TRANSFER CASE
RTC261GHD-1 for 1999-2007 GMC Pickups Fits trucks with Manual Shift, 32 Spline Input, 6.0L with 4L80E
RTC261GLD-1 for 1999-2007 GMC Pickups Fits trucks with Manual Shift and 27 Spline Input
RTC261GXHD-1 for 2001-2007 Chevrolet Silverado Fits 6 Speed Allison Transmission w/ Manual Shift and 29 Spline Input
NP263 TRANSFER CASE
RTC263GHD-2 for GM Pickup 2001-2007 Fits 6.0L w/ 4L80E Transmission and 32 Spline Input
RTC263GXHD-2 for GM Pickups 2001-2007 Fits 6 Speed or Allison Transmission with 29 Spline Input
RTC263GHD-2M1 for GM Pickups 2003-2007 with 4L80E Transmission
NP271 TRANSFER CASE
RTC271D-1 for 2003-2012 Dodge Ram 2500/3500 Fits 29 Spline Input without Speedo
RTC271D-2 for 2003-2011 Dodge Ram 2500/3500 Fits 23 Spline Input without Speedo
RTC271D-3 for 2003-2012 Dodge Ram 2500/3500 Fits M/T and 29 Spline Input without Speedo
RTC271D-4 for 2003-2011 Dodge Ram 2500/3500 Fits A/T and 23 Spline Input without Speedo
RTC271D-5 for 2007-2012 Dodge Ram 3500 Fits M/T and 29 Spline Input without Speedo
RTC271D-6 for 2007-2012 Dodge Ram 3500 Fits A/T and 23 Spline Input without Speedo
RTC271F-1 for 1999-2004 Ford F-Series Fits 4 Spd A/T, 5 Spd M/T and 31 Spline Input without Speedo
RTC271F-2 for 1999-2005 Ford F250 SuperDuty Fits 6 Spd and 24 Spline Input without Speedo
RTC271F-3 for 2003-2006 Ford F-Series Fits 6 Spd and 34 Spline Input without Speedo
RTC271F-4 for 2007-2010 Ford F250, F350 Fits 6 Spd and 34 Spline Input. 3 Mounting Holes on Tail Housing
RTC271F-1 for 2008-2010 Ford F250, F350 Fits 34 Spline Input and Rear Slip Yoke
NP273 TRANSFER CASE
RTC273D-1 for 2003-2005 Dodge Ram 2500/3500 Fits 23 Spline Input and 34 Spline Rear Slip Yoke
RTC273D-2 for 2003-2005 Dodge Ram 2500/3500 Fits 29 Spline Input, 34 Spline Rear Slip Yoke, Double D Shift
RTC273D-3 for 2006-2012 Dodge Ram 1500, 2500, 3500 Fits 23 Spline Input, 34 Spline Rear Slip Yoke, without Speedo
RTC273D-3M for 2006-2012 Dodge Ram 1500, 2500, 3500 its 23 Spline Input, 34 Spline Rear Slip Yoke, without Speedo, Includes Shift Motor
RTC273D-4 for 2006-2012 Dodge Ram 2500, 3500 Fits 29 Spline Input, 34 Spline Rear Slip Yoke, Splined Shift Shaft
RTC273D-4M for 2006-2012 Dodge Ram 2500, 3500 Fits 29 Spline Input, Rear Slip Yoke, Spline Shift Shaft, Includes Shift Motor
RTC273D-5 for 2007-2012 Dodge Ram 3500 Fits M/T with 29 Spline Input, Bolt-On Rear Yoke
RTC273F-1 for 1999-2005 Ford Super Duty Fits 6 Spd with 24 Spline Input
RTC273F-2 for 1999-2003 Ford Excursion & Super Duty Fits 4 Spd A/T or 5 Spd M/T with 31 Spline Input
RTC273F-3 for 2003-2005 Ford Excursion and Super Duty Fits 5 Spd A/T or 5 Spd M/T with 34 Spline Input
RTC273F-4 for 2007-2010 Ford Excursion & Super Duty Fits 34 Spline Input, Front + Rear Flange, 3 Mounting Holes
RTC273F-5 for 2008-2010 Ford F250, F350 Fits 34 Spline Input and Rear Slip Yoket
RTC273G-1 for 2005-2008 GM Topkick & Kodiak Fits Remote Mount and Bolt-On Yoke
