RV.Net Open Roads Forum: Towing: New Shank for 2021 GMC Sierra 2500HD

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Towing

Open Roads Forum  >  Towing

 > New Shank for 2021 GMC Sierra 2500HD

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Sponsored By:
Draggo

Rochester, NY

Senior Member

Joined: 04/21/2004

View Profile



Posted: 06/10/21 11:23am Link  |  Quote  |  Print  |  Notify Moderator

Hello,

I recently upgraded to a 3/4 ton truck and it has the 2.5" receiver. I didn't want to mess around with the adapter so I picked up a Reese Titan shank however it doesn't fit correctly. So my question is what are you using for a weight distributing hitch that has a 2.5" shank with about a 12" extension from the hitch pin to the holes for the WD head? I need the clearance so I can put the tailgate down when I'm hooked up.

Thanks,
Mike


Mike & Company
2021 GMC Sierra SLE (6.6L V-8, 3.73 rear gear)
2018 Coachmen Freedom Express 279RLDS
Reese W/D & HP DC

ssthrd

Vancouver Island

Senior Member

Joined: 03/23/2016

View Profile



Posted: 06/10/21 03:31pm Link  |  Quote  |  Print  |  Notify Moderator

Just a thought...... if your jack is electric, have you had a look at turning it around?

I had the same problem and gained a couple of inches. Enough to be able to lower my tailgate.

I probably don’t have to point this out, but.... make sure you block the reach before taking the jack bolts off.


2014 Laredo 292RL
2018 GMC 3500HD 6.5' box SRW Denali Duramax Anderson
DeeBee, JayBee, and Jed the Black Lab


Sagebrush

Jacksonville AL

Senior Member

Joined: 02/05/2003

View Profile



Good Sam RV Club Member

Offline
Posted: 06/10/21 08:41pm Link  |  Quote  |  Print  |  Notify Moderator

I don' have a GM factory hitch, so not sure if its different. But, the pin holes aren't in the same spot even on the adapters. I use the 2" draw bars that I already have with the Curt 2 1/2" adapter I got at Walmart. The holes are in a better location than the Reese adapter and the sleeve is not recessed inside the hitch. I was going to buy a 2 1/2" Equalizer shank, but the Curt adapter has been working fine.

Grit dog

Black Diamond, WA

Senior Member

Joined: 05/06/2013

View Profile


Online
Posted: 06/10/21 11:22pm Link  |  Quote  |  Print  |  Notify Moderator

Not a great idea to use an adapter sleeve often and/or with heavy trailers.
Good chance of bending a hitch pin and wallowing out the receiver pin holes.


2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29

nickthehunter

Southgate, MI

Senior Member

Joined: 07/18/2005

View Profile


Offline
Posted: 06/11/21 06:54am Link  |  Quote  |  Print  |  Notify Moderator

Order what you need from etrailer.com
They make them in assorted lengths.

Draggo

Rochester, NY

Senior Member

Joined: 04/21/2004

View Profile



Posted: 06/11/21 11:14am Link  |  Quote  |  Print  |  Notify Moderator

Thanks everyone. I have thought about rotating the jack and may end up doing that. As for Etrailer, that's where I originally ordered the Titan from but ended up canceling it because even though they said they had it in stock the ship date kept moving out further and further and they couldn't give me a good explanation why so I canceled it.

Grit dog

Black Diamond, WA

Senior Member

Joined: 05/06/2013

View Profile


Online
Posted: 06/11/21 02:48pm Link  |  Quote  |  Print  |  Notify Moderator

Seems 2.5" shank extensions are hard to come by except in longer lengths.
If you cant find the shank you need, either get a short 2.5 to 2" reducer extension and use your old shank or have a short 2.5" extension fabbed up. Should be reasonable $.

deltabravo

Spokane, WA

Senior Member

Joined: 09/08/2003

View Profile


Offline
Posted: 06/13/21 08:44pm Link  |  Quote  |  Print  |  Notify Moderator

In what way doesn't the new shank fit?

Does it not fit the truck, or does your hitch head not bolt up to the new shank?


2009 Silverado 3500HD Dually, D/A, CCLB 4x4 (bought new 8/30/09)
2009 Arctic Fox 811 (bought new 11/9/09)
2018 Timber Ridge 24RLS (bought pre-owned 3/12/20)
2008 Haulmark 8.5x20 toy box trailer

BenK

SF BayArea

Senior Member

Joined: 04/18/2002

View Profile



Posted: 06/13/21 09:18pm Link  |  Quote  |  Print  |  Notify Moderator

Draggo wrote:

Hello,

I recently upgraded to a 3/4 ton truck and it has the 2.5" receiver. I didn't want to mess around with the adapter so I picked up a Reese Titan shank however it doesn't fit correctly.

Please explain why it doesn’t fit correctly.

Doesn’t fit into the receiver?

Not long enough as you state below?
.




So my question is what are you using for a weight distributing hitch that has a 2.5" shank with about a 12" extension from the hitch pin to the holes for the WD head? I need the clearance so I can put the tailgate down when I'm hooked up.

Note that the longer the shank, the longer the lever arm on the receiver cross tube (a torque tube).

That would reduce the rating of the receiver and also increase the amount of WD bar travel required to do the same work a shorter shank would require



Thanks,
Mike


You also said you don’t want to mess with a 2” to 2.5” adaptor, so using the old one is out, right?

What is getting in the way with opening the tail gate ? Most TT’s have room to drop the tail gate and what is different with yours ?


-Ben Picture of my rig
1996 GMC SLT Suburban 3/4 ton K3500/7.4L/4:1/+150Kmiles orig owner...
1980 Chevy Silverado C10/long bed/"BUILT" 5.7L/3:73/1 ton helper springs/+329Kmiles, bought it from dad...
1998 Mazda B2500 (1/2 ton) pickup, 2nd owner...
Praise Dyno Brake equiped and all have "nose bleed" braking!
Previous trucks/offroaders: 40's Jeep restored in mid 60's / 69 DuneBuggy (approx +1K lb: VW pan/200hpCorvair: eng, cam, dual carb'w velocity stacks'n 18" runners, 4spd transaxle) made myself from ground up / 1970 Toyota FJ40 / 1973 K5 Blazer (2dr Tahoe, 1 ton axles front/rear, +255K miles when sold it)...
Sold the boat (looking for another): Trophy with twin 150's...
51 cylinders in household, what's yours?...

Draggo

Rochester, NY

Senior Member

Joined: 04/21/2004

View Profile



Posted: 06/14/21 11:46am Link  |  Quote  |  Print  |  Notify Moderator

So in hindsight I see I just said it didn't work and didn't state why. On the part of the shank that goes into the receiver it starts at the 2.5" but then there is a small ridge and it expands just a little where it would normally be sticking out of the receiver but the problem I'm running into is that I'm coming up maybe an 1/8" short of being able to put the hitch pin in because the expansion on the shank hits the receiver and won't let it go in far enough.

I may be able to go with a shorter shank and still be ok with the jack because I do have some room to spare when the tailgate is down so maybe I need to look at that closer to see if I can find a shorter extension on the shank that will fit.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 

Open Roads Forum  >  Towing

 > New Shank for 2021 GMC Sierra 2500HD
Search:   Advanced Search

Search only in Towing


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2021 CWI, Inc. © 2021 Good Sam Enterprises, LLC. All Rights Reserved.