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dhigdon@southerntank 06-26-2023 08:29 AM

Trailing Arm Question
 
Trying to decide if I should flip the front trailing arm hangers, is there a great benefit to it?

1970 CST Short Wide 06-26-2023 12:01 PM

Re: Trailing Arm Question
 
Quote:

Originally Posted by dhigdon@southerntank (Post 9215125)
Trying to decide if I should flip the front trailing arm hangers, is there a great benefit to it?

I believe it would change your pinion angle which you don’t want

indymachinist 06-26-2023 08:11 PM

Re: Trailing Arm Question
 
Depends it you are lowered or not. Mine are flipped.

HO455 06-26-2023 08:49 PM

Re: Trailing Arm Question
 
Quote:

Originally Posted by dhigdon@southerntank (Post 9215125)
Trying to decide if I should flip the front trailing arm hangers, is there a great benefit to it?

Is your truck lowered and if so how much?

coldrider 06-26-2023 08:59 PM

Re: Trailing Arm Question
 
Some good discussion at the here and in the embedded thread linked on post 7

http://67-72chevytrucks.com/vboard/s...d.php?t=439768

dhigdon@southerntank 06-27-2023 07:57 AM

Re: Trailing Arm Question
 
I plan on lowering it 6" in the rear.

CC69Rat 06-27-2023 09:22 PM

Re: Trailing Arm Question
 
Quote:

Originally Posted by dhigdon@southerntank (Post 9215437)
I plan on lowering it 6" in the rear.

Yes. If you have access to the brackets (is the bed off now?) It is worth the effort, especially if you're going to replace the TA bushings.

Flipping the brackets will make the truck 'think' its only lowered 2, maybe 3 inches. It also seems to help with lateral geometry and flex. I have personal experience with it and I'd do it again, absolutely.

How do you plan on achieving the 6" drop? All spring, or maybe a combination of drop springs, + a lowering block?

hewittca 06-28-2023 08:10 AM

Re: Trailing Arm Question
 
I think CC69Rat definitely hit the real key point in doing this mod. As for the pinion angle benefit, it could be good or bad depending on your setup. If you only drop a small amount, regaining closer to stock pinion angle is good. On my truck, however, I dropped the rear 11 inches and did the trailing arm bracket flip. I actually had to add pinion shims on my rear to negate the change in pinion angle that the bracket flip gave me. This was because I have a two piece driveshaft and I had to raise the center carrier bearing in order to get my driveshaft angles into spec.

dhigdon@southerntank 06-28-2023 08:16 AM

Re: Trailing Arm Question
 
4" drop springs, 2" blocks

CC69Rat 06-28-2023 01:39 PM

Re: Trailing Arm Question
 
4in spring, 2 in block

I'd add a 3 deg shim a nice double adjustable track bar, shock relocation brackets, clean it good and detail it and drive it like you stole it.

Unless you're going really low (or all spring drop to achieve 6") and/or going to be tracking the truck, auto cross, etc. In my opinion you will be very happy with it without flipping the brackets. Or, if you just want to flip them over, then you can likely get away without the 3 deg shims.

Good call on 4in spring, + 2in block. It will ride much better than a 6in spring. I can elaborate if necessary.


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