What Ball Mount Will I Need For A 1-1/4" Receiver On A 2020 GMC Terrain SLT?
Updated 05/22/2026 | Published 05/20/2026
Question:
2020 GMC Terrain SLT Ball joint Please help. The car has a receiver which has a 1 5/16 inside width. I’ve measured the receiver more than twice but I don’t see a ball joint which is 1 5/16 inches on your website. 1. Does your company carry a ball joint that would fit that receiver.? 2. If “yes”, please, send me the link. 3. How do I know if I need a rise ball joint and how much of a rise do I need?
asked by: Joe C
Expert Reply:
Hey Joe, thanks for reaching out. The trailer hitch on your 2020 GMC Terrain SLT is a standard 1-1/4" receiver. There is no such thing as a 1-5/16" receiver, so it is undoubtedly a 1-1/4" with maybe a bit more factory tolerance than usual.
That being said, we do have a ball mount that will work for you. You will most likely need a rise ball mount, but the exact amount of rise really depends on your trailer. You want the trailer to ride level, so you need enough rise to achieve that. The hitch on your Terrain should ride about 12" off the ground, and most trailers have a coupler height of around 16", but each trailer is different.
What you'll want to do is set the trailer on level ground and lower the jack until the tongue is level. Measure the distance from the center of the coupler to the ground, subtract 12" from that and that will tell you exactly how much rise you'll need.
My guess is you'll need something like the etrailer Ball Mount # e47DR. This has 3-7/8" of rise and comes with a pre-torqued 2" ball. Please just check and make sure the 3-7/8" rise and 2" ball will work for your trailer and you'll be good to go.
What kind of trailer will you be hauling?
(click to enlarge)
Product Page this Question was Asked From
etrailer Ball Mount w/ Pre-Torqued 2" Ball - 1-1/4" Hitch - 3-7/8" Rise - 3,500 lbs
- Trailer Hitch Ball Mount
- Fixed Ball Mount
- One Ball
- 2 Inch Ball
- Steel Shank
- Rise - 3 Inch
- Fits 1-1/4 Inch Hitch
- 3500 lbs GTW
- Pre-Torqued
- etrailer
more information >
Continue Researching
- Shop: Vehicle Air Mattress
- Shop: BAJA Collection 1-1/4" Ball Mount w/ 2" Ball - 2-1/2" Drop - 2" Rise - 3,500
- Shop: etrailer Ball Mount w/ Pre-Torqued 2" Ball - 1-1/4" Hitch - 3-7/8" Rise - 3,500 lbs
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Video: How to Choose a Trailer Brake Controller
- Article: Trailer Wiring Diagrams
- Search Results: trailer hitch
- Search Results: trailer wiring
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Shop: Trailer Wiring
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer tires and wheels
- Article: How to Measure for Trailer Hitch Drop
- Video: Clean Up Your Trailer Wiring
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: etrailer Anti-Rattle Hitch Collar for 2" Hitch Receivers
- Shop: Brake Controller
- Video: A Look at the Power Mountain Tallboy 6 Ton Off-Road Bottle Jack with a Military Cargo Trailer
- Search Results: trailer jack
- Shop: Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Way Coiled Adapter Cord
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Search Results: trailer hitch ball mount
- Video: What to Know About the Curt TriFlex NEXT Trailer Brake Controller
- Shop: Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional
- Q&A: Where is Weigh Safe Hitch w/ Built-In Scale for 2.5" Hitch Made
- Search Results: spare tire mount
on Trailer Hitch Ball Mount
