The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1969 - 1972 Blazers and Jimmys Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-22-2012, 05:17 AM   #1
Lugnutt
Registered User
 
Lugnutt's Avatar
 
Join Date: Jan 2007
Location: San Jose, California
Posts: 194
Towing trailer with a short 1/2 ton 4x4

Hi guys,

I'm looking at wanting to tow a small travel trailer when I'm done restoring my 72 chevy 1/2 ton short bed 4x4. What upgrades would you guys recommend to the suspension and such to make it handle the tow as easily and safely as possible. Right now everything is still stock except that I added an overload leaf to the rear axles and I'll be running 33x12.50 tires & wheels. My hitch is rated 5,000 lbs and that's what most of the smaller "ultralight" travel trailers are GVRW'ing these days. I'll also be running proportional trailer brakes back to the TT.

Any recommendations, especially with pictures and/or web links would appreciated.

Thanks,

Gary
Lugnutt is offline   Reply With Quote
Old 01-22-2012, 10:00 AM   #2
Dmcinfo
Registered User
 
Join Date: Oct 2011
Location: Sacramento, ca
Posts: 47
Re: Towing trailer with a short 1/2 ton 4x4

This thread might help answer some of your questions.

http://67-72chevytrucks.com/vboard/s...d.php?t=498892
Posted via Mobile Device
Dmcinfo is offline   Reply With Quote
Old 01-22-2012, 05:28 PM   #3
Lugnutt
Registered User
 
Lugnutt's Avatar
 
Join Date: Jan 2007
Location: San Jose, California
Posts: 194
Re: Towing trailer with a short 1/2 ton 4x4

Great info on that thread, thanks.

I've got the advantage of an additional 11" of wheelbase at 115" from a Blazer at 104" but is much shorter than the typical long bed's 127" that most people use pulling trailers. I'm going to install anti-sway bars, weight distribution hitch, and will be using trailer brakes (duel axles for sure) with a proportional controller. Because it's a 4x4 I've got the standard 2 leaf front springs and the 5 leaf rear springs with the additional overload spring. My Truck is going to be left at the stock 4x4 height and I've installed a 5,000 lb rated hide-a-hitch.

I need to upgrade my shocks and had planned on mounting Mickey Thompson 33x12.50 Baja ATZ Radials on 15"x10 aluminum 6 lug wheels. Do you think that the 3 ply side-walls on the MT tires would cause too much squishy side-play? And are there any particular shocks that would add to the stability of my truck while towing? Any trailer I would consider would be of the "ultralight" variety 18 to 19 feet long.

Thanks
Lugnutt is offline   Reply With Quote
Old 01-22-2012, 05:33 PM   #4
Lugnutt
Registered User
 
Lugnutt's Avatar
 
Join Date: Jan 2007
Location: San Jose, California
Posts: 194
Re: Towing trailer with a short 1/2 ton 4x4

Also, the biggest challange I think I will have would be my having to cross the Siskiyou mountain pass often as I live in California but enjoy going to Oregon to camp and see my son. That pass has many curvy streatches with 6 degree down-hills.
Lugnutt is offline   Reply With Quote
Old 01-22-2012, 06:58 PM   #5
2fast55
Registered User
 
2fast55's Avatar
 
Join Date: Mar 2010
Location: Cottage Grove, OR
Posts: 63
Re: Towing trailer with a short 1/2 ton 4x4

I rode over the Siskiyous going to a race in Yreka last summer with a friend towing a 72 k20 (the truck in my avatar. ~6000 lbs) on a 16' car trailer with this truck:



The trailer has brakes, but no controller on his truck. 33x12.50 tires, small lift, and airbags to help with tow duty. D44/12bolt axles, mild 350 and turbo 400 trans. The only problem we had was actually transmission temp from pulling way too hard up the hills. Just drive sanely and remember there is a trailer back there, and you should have no problems.
__________________
1972 Chevy K5 Blazer
1972 Chevy K20
1955 Chevy 3100

"If we knew what it was we were doing, it would not be called research, would it?"
- Albert Einstein
2fast55 is offline   Reply With Quote
Old 01-22-2012, 07:24 PM   #6
Lugnutt
Registered User
 
Lugnutt's Avatar
 
Join Date: Jan 2007
Location: San Jose, California
Posts: 194
Re: Towing trailer with a short 1/2 ton 4x4

Quote:
Originally Posted by 2fast55 View Post
I rode over the Siskiyous going to a race in Yreka last summer with a friend towing a 72 k20 (the truck in my avatar. ~6000 lbs) on a 16' car trailer with this truck:



The trailer has brakes, but no controller on his truck. 33x12.50 tires, small lift, and airbags to help with tow duty. D44/12bolt axles, mild 350 and turbo 400 trans. The only problem we had was actually transmission temp from pulling way too hard up the hills. Just drive sanely and remember there is a trailer back there, and you should have no problems.
Thanks for the info. You say air bags helped with towing, were they in addition to your springs or replacement? I know what air bags are, got them on my RV, but am not familiar with them on these older trucks. Do you have a name brand and model number so I can read up on them?

Thanks,
Lugnutt is offline   Reply With Quote
Old 01-22-2012, 07:25 PM   #7
Lugnutt
Registered User
 
Lugnutt's Avatar
 
Join Date: Jan 2007
Location: San Jose, California
Posts: 194
Re: Towing trailer with a short 1/2 ton 4x4

Quote:
Originally Posted by 2fast55 View Post
I rode over the Siskiyous going to a race in Yreka last summer with a friend towing a 72 k20 (the truck in my avatar. ~6000 lbs) on a 16' car trailer with this truck:



The trailer has brakes, but no controller on his truck. 33x12.50 tires, small lift, and airbags to help with tow duty. D44/12bolt axles, mild 350 and turbo 400 trans. The only problem we had was actually transmission temp from pulling way too hard up the hills. Just drive sanely and remember there is a trailer back there, and you should have no problems.
Oh, by-the-way... the Syskiyou pass is paved now. jk
Lugnutt is offline   Reply With Quote
Old 01-22-2012, 07:36 PM   #8
mr48chev
Registered User
 
mr48chev's Avatar
 
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,640
Re: Towing trailer with a short 1/2 ton 4x4

I don't see a real problem with towing a light weight trailer with that truck the way you have it set up.

I would however:

Get an equalizer hitch for the trailer. That will stabilize it and keep some of the tongue weight off the back of the truck. Sometimes you can find the whole setup on Craigslist or at swapmeets for a lot less than the new price. Do your homework first though to make sure that they aren't selling it with parts missing.

Get a brake controller. You want one that you can reach down and activate the trailer brakes by hand when you just want to hit the trailer brakes and not the truck brakes.
mr48chev is offline   Reply With Quote
Old 01-22-2012, 08:49 PM   #9
rsavage
Registered User
 
rsavage's Avatar
 
Join Date: Aug 2009
Location: Alden NY
Posts: 2,705
Re: Towing trailer with a short 1/2 ton 4x4

Anti-sway bar on the trailer to hitch helps a lot. They aren't expensive (the friction type) and really help in cross winds and when big rigs blow by you at 75-80 on the interstate.
__________________
1961 C1 Corvette
1959 El Camino 350 TPI, 9" 4 w disc
69 Blazer K5 - sold July '20
2021 Durango RT 5.7
rsavage is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:46 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com