I checked with Timbren and was able to confirm that the Front Suspension Enhancement System # TGMFC4 referenced in your question is a fit for your 2009 Hummer H3T.
These jounce-style springs will replace the bump stops at the front of your Hummer and feature a 14,000 pound weight capacity. I have attached a short video demonstration that you can also check out. view full answer...
The only suspension enhancement option available for a 2010 Hummer H3T with aftermarket lift is the TorkLift StableLoad Rear Suspension Upgrade part # TLA7311 which is designed for factory leaf spring packs. The Air Lift Ride Control Air Helper Springs part # AL59563 will not work for lifted applictions as there is no spacer for this smaller type of air spring. The Air Lift Spring Spacers for LoadLifter Air Helper Springs part # AL52420 won't work. view full answer...
If you do not have a connector at the rear of your 2009 Hummer H3T, I recommend the Draw-Tite Custom Fit Wiring, part # 18252.
This harness comes with a circuit tester to help locate the wires you need to tap in to.
If you need a 7-way connector on the back of your H3T, you will need an installation kit like part # ETBC7. This will attach to the 4-way connector and with additional wiring give you a 4-way and a 7-way connector at the back of your Hummer.
If you need a brake controller,... view full answer...
You can install the Tekonsha P2 Brake Controller, # 90885, which you referenced, on your Hummer H3T yourself. There is no plug under the dash of the H3T for the brake controller.
Installation is a snap. After mounting the P2 unit in your cab, just hardwire one end of the included pigtail harness directly into your Hummer H3. You will need a circuit tester, # PTW2993, to find the right connection to the stop light switch wire. The other end plugs into the brake controller.
I included... view full answer...
Yes, you can definitely install the Tekonsha P2 Brake Controller on your 2009 Hummer H3T yourself. The brake controller will have to be hard wired, and you will need a circuit tester, # PTW2993, to find the right connection to the stop light switch wire. There is no plug under the dash of the H3T for the brake controller. view full answer...
Since your Hummer H3T came with a factory 7-Way, you will be able to find the tow package wiring under the dash of the vehicle. The wiring should be located to the right of the steering column, under the dash, behind the radio area. The wires should be labeled.
You will splice the brake controller wiring to these wires. On the brake controller, white is ground, black is 12 volt power, blue is output to the trailer brakes, and red is input from the brake switch stop light wire. If there... view full answer...
The RockyMounts DriveShaft Track Truck Bed Bike Rack part # RKY1086 is compatible with GM truck bed tracks so it should work on a 2010 Hummer H3T as well since it's made by GM but I don't have official confirmation. view full answer...
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