Will Adding a Transmission and Oil Cooler Increase the Towing Capacity of a 2014 GMC Yukon SLT
Question:
I have a 2014 Yukon SLT and a travel trailer that weighs 5000 lbs dry. We got stuck on a steep mountain road and my yukon just stoped moving and my transmission temp was up to 240 degrees! I assumed my Yukon was rated to tow 8400 lbs but after this happened I researched more and found that I have the 3.08 axle ratio and no transmission cooler or oil cooler only the basic trailering package. My question is, if I add a external transmission and oil cooler to my Yukon will I be able to tow the Max 8400 lbs? Or will I need anything else? Thanks
asked by: AJ R
Expert Reply:
Just adding a transmission cooler and oil cooler will not increase the towing capacity of your 2014 GMC Yukon. The towing capacity of the vehicle is pretty much set in stone. But adding coolers will certainly be beneficial to you and help protect the transmission and motor for excessive heat.
I recommend a combination cooler # D15902 so that you can have one unit that can be used for both fluids. I also recommend fitting # D13035 to avoid having to cut and flare transmission lines.
Another useful item is a programmer such as # SU2845 (for the 5.3 liter motor). It has a towing tune that will optimize the vehicle for towing. If you have the larger 6.2 liter motor you can use # EP26040.
Products Referenced in This Question
Derale Snap-In Radiator Adapter Fitting for GM
- Accessories and Parts
- Transmission Coolers
- Radiator Adapters
- Derale
more information >
Derale Combination Transmission and Engine Oil Cooler with Multiple Threads
- Transmission Coolers
- Transmission and Engine Cooler
- Standard Mount
- 17W x 12-1/2T x 3/4D Inch
- With 11/32 Inch Hose Barb Inlets
- Derale
more information >
Edge EvoHT2 Hand-Held Performance Tuner - GM - Gas/Diesel
- Performance Chip
- Performance Tuners
- Tuner Only
- Color Screen
- No - Not California Approved
- EvoHT2
- Edge
more information >
Superchips Flashpaq F5 Performance Tuner - GM - Gas/Diesel
- Performance Chip
- Performance Tuners
- Tuner Only
- Color Screen
- No - Not California Approved
- Flashpaq F5
- Superchips
more information >
Product Page this Question was Asked From
Derale Combination Transmission and Engine Oil Cooler with Multiple Threads
- Transmission Coolers
- Transmission and Engine Cooler
- Standard Mount
- 17W x 12-1/2T x 3/4D Inch
- With 11/32 Inch Hose Barb Inlets
- Derale
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Q&A: Engine Oil and Transmission Fluid Cooler for a 2017 Ford Explorer
- Q&A: Lighting and Wiring Options for Flat-Towing a Jeep Wrangler Behind a Motor Home
- Article: Frequently Asked Questions About Transmission Coolers
- Q&A: Is There an Extension Cord Available to Extend a 7-Way Connector
- Q&A: Towing Capacity for 1999 Ford Explorer with 4.0 Liter Engine
- Article: My Trailer Hitch Doesn't Fit
- Q&A: Transmission Cooler Recommendation for 2017 Ford Explorer
- Q&A: Recommendation For Transmission Cooler on 2005 Ford Excursion 6.8L / V-10
- Q&A: Oil & Transmission Coolers for Ford F-53-Based Class A RV
- Article: How to Measure the Bolt Pattern of a Trailer Wheel
- Article: How to Choose the Right Trailer Hitch Class
- Article: Performance Chips and Modules
- Article: Trailer Hitch Receiver Sizes
- Article: How to Mount a Truck Bed Camper