trailing arm help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

WEBBY1 · 12-09-2014, 12:46 PM

I swapped to 5 lug axles and had my rear narrowed.. I put 4" blocks on the trailing arms..I'm running 28" tall wheel. I'm having an issue with the rear end moving forward out of notch even I drop my suspension. Here's a pic.. what can I do to correct this problem. I see that pb makes a trailing arm kit... Will this take care of my problem? Thanks in advance.

**PGSigns** · 12-09-2014, 01:36 PM

Tell us more about your problem. When you say "I'm having an issue with the rear end moving forward out of notch even I drop my suspension." Are you talking about the well is no longer centered in the wheel well?
Jimmy

LVPhotos · 12-09-2014, 01:36 PM

Porterbuilt arms. If you have stock arms it pushes up and forward. Porterbuilt arms come with 1 or 3" drop built in. Some where here is a thread on this issue of pushing tire into bed. I do have pic on my build thread as well.

WEBBY1 · 12-09-2014, 01:45 PM

If you notice the axle is at the front of the notch and not centered. Theres still about 8 inches before the body lays on the ground jimmy... LV im gonna get a hold of pb and see what they recommend

luvbowties · 12-09-2014, 04:21 PM

Quote:

Originally Posted by WEBBY1

If you notice the axle is at the front of the notch and not centered. Theres still about 8 inches before the body lays on the ground jimmy... LV im gonna get a hold of pb and see what they recommend

I'm talking out of my league here, as I've never been involved in your project. But, could you put extension blocks onto the front of your tr-arms to move your differential back into perspective?...kinda like relocating front support backwards?

Remember, I'M learning as YOU go!

Sam

**PGSigns** · 12-10-2014, 11:23 AM

I'm not a fan of the blocks being more than about an inch. When you get that much block on it it will move the rear end forward. It also leaves the truck arm hanging below the rim and close to the ground with most wheels 20" and smaller. If you have a flat the ubolts can dig into the pavement causing control issues. If you flip your front brackets and raise the front of the truck arms up the 3 1/2" or so it gives you you can get rid of most the block and also keep the drop you have. This will move the wheel back to about where it started.
Jimmy

12-09-2014, 12:46 PM	#1
WEBBY1 Registered User Join Date: Dec 2011 Location: Royal Oak, Michigan Posts: 193	trailing arm help I swapped to 5 lug axles and had my rear narrowed.. I put 4" blocks on the trailing arms..I'm running 28" tall wheel. I'm having an issue with the rear end moving forward out of notch even I drop my suspension. Here's a pic.. what can I do to correct this problem. I see that pb makes a trailing arm kit... Will this take care of my problem? Thanks in advance. Attached Images

12-09-2014, 01:36 PM	#2
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: trailing arm help Tell us more about your problem. When you say "I'm having an issue with the rear end moving forward out of notch even I drop my suspension." Are you talking about the well is no longer centered in the wheel well? Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

12-09-2014, 01:36 PM	#3
LVPhotos Registered User Join Date: Jan 2013 Location: Las Vegas, NV Posts: 1,857	Re: trailing arm help Porterbuilt arms. If you have stock arms it pushes up and forward. Porterbuilt arms come with 1 or 3" drop built in. Some where here is a thread on this issue of pushing tire into bed. I do have pic on my build thread as well. __________________ 1962 shortbed 408cui small block, TKO 600 5-speed, bagged Porterbuilt suspension. 18" Salt Flats http://www.cardomain.com/ride/332579...t-c-k-pick-up/ http://67-72chevytrucks.com/vboard/s...d.php?t=560081

12-09-2014, 01:45 PM	#4
WEBBY1 Registered User Join Date: Dec 2011 Location: Royal Oak, Michigan Posts: 193	Re: trailing arm help If you notice the axle is at the front of the notch and not centered. Theres still about 8 inches before the body lays on the ground jimmy... LV im gonna get a hold of pb and see what they recommend

12-10-2014, 11:23 AM	#6
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: trailing arm help I'm not a fan of the blocks being more than about an inch. When you get that much block on it it will move the rear end forward. It also leaves the truck arm hanging below the rim and close to the ground with most wheels 20" and smaller. If you have a flat the ubolts can dig into the pavement causing control issues. If you flip your front brackets and raise the front of the truck arms up the 3 1/2" or so it gives you you can get rid of most the block and also keep the drop you have. This will move the wheel back to about where it started. Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.