5.5 7 drop with 235/75/15 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

66clow · 05-19-2016, 07:00 AM

I've looked thru the drop posts but can't see any or missed them. I'm currently at a 3 5 drop. Can I do a 5.5 7 drop without any issues with my tire wheel set up? Exhaust or tie rod? Anyone have any photos and with white walls if possibile?

Mike C · 05-19-2016, 08:43 AM

I wouldn't go more than 4.5" in the front. Crossmember gets REALLY close to the ground and the 3" springs cause issues with being able to get alignment in spec.

7" should be fine in the back with shock relocation. I have a leaf flip on the rear of my '69 that netted just over that amount using the DJM kit. My front is 4.5" with ECE disc spindles and 2" springs.

Riverdog57 · 05-19-2016, 09:30 AM

I'm looking at doing a 3 / 5 on my 72 long bed also . what did you use to do yours ? I'm also using 15 " tires. love the look of your truck.

66clow · 05-19-2016, 09:48 AM

Quote:

Originally Posted by Riverdog57

I'm looking at doing a 3 / 5 on my 72 long bed also . what did you use to do yours ? I'm also using 15 " tires. love the look of your truck.

CCP springs, rear shock relocate, adjustable pan hard bar. I'm about 5.5 in the rear. I took the old rear lower shock mount to get another .5. Not pretty but works for now.
Picture is with the arm jacked up so it is close to the frame

66clow · 05-19-2016, 09:59 AM

Anyone use these from AutoZone? They are like $32 for 2in blocks. They have up to 3in I believe.

DBK81 · 05-19-2016, 12:08 PM

Lowering blocks are lowering blocks, just make sure U bolts are of decent grade, and you really can't go wrong. $32 seems like a hell of a deal.

67 chevelle · 05-19-2016, 02:42 PM

7 inch in back , you need a c-noch in the frame
5 in front , im sure 2 will have to come from lowering spindles , tire size and maybe other front end issues will come into play , lots of experiance on this board , someone who has done it will chime in , mine 3 5 , no issues , Ive herd of others doing 4 6 with no issues , but 5 7 , I know you need a c-notch minimum

**lolife99** · 05-19-2016, 03:43 PM

Quote:

Originally Posted by DBK81

Lowering blocks are lowering blocks, just make sure U bolts are of decent grade, and you really can't go wrong. $32 seems like a hell of a deal.

Not true.
Those are leaf spring lowering blocks.
You need trailing arm lowering blocks.
http://67-72chevytrucks.com/vboard/s...d.php?t=454824

66clow · 05-19-2016, 03:49 PM

Quote:

Originally Posted by lolife99

Not true.
Those are leaf spring lowering blocks.
You need trailing arm lowering blocks.
http://67-72chevytrucks.com/vboard/s...d.php?t=454824

How do you tell the difference?

**lolife99** · 05-19-2016, 04:13 PM

Quote:

Originally Posted by 66clow

How do you tell the difference?

Look at the pictures!
The leaf spring style has 4 unbolts and no holes.

The trailing arm style has 2 much larger u-bolts and holes in the blocks that match the hole spacing on your truck rearend and shock plates.
You won't find these at your local auto parts store.
These are specific to 60-72 trailing arm trucks.

**Blue/72** · 05-19-2016, 04:18 PM

Here is a 5/7 static drop my dad did. Running 20 inch wheels and no frame modifications or clearance issues

66clow · 05-19-2016, 04:54 PM

Quote:

Originally Posted by lolife99

Look at the pictures!
The leaf spring style has 4 unbolts and no holes.

The trailing arm style has 2 much larger u-bolts and holes in the blocks that match the hole spacing on your truck rearend and shock plates.
You won't find these at your local auto parts store.
These are specific to 60-72 trailing arm trucks.

Got it thanks

05-19-2016, 07:00 AM	#1
66clow Registered User Join Date: Jun 2012 Location: Clearwater Beach Florida Posts: 872	5.5 7 drop with 235/75/15 I've looked thru the drop posts but can't see any or missed them. I'm currently at a 3 5 drop. Can I do a 5.5 7 drop without any issues with my tire wheel set up? Exhaust or tie rod? Anyone have any photos and with white walls if possibile?

05-19-2016, 08:43 AM	#2
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,715	Re: 5.5 7 drop with 235/75/15 I wouldn't go more than 4.5" in the front. Crossmember gets REALLY close to the ground and the 3" springs cause issues with being able to get alignment in spec. 7" should be fine in the back with shock relocation. I have a leaf flip on the rear of my '69 that netted just over that amount using the DJM kit. My front is 4.5" with ECE disc spindles and 2" springs. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

05-19-2016, 09:30 AM	#3
Riverdog57 Registered User Join Date: Apr 2016 Location: Fort madison. Iowa Posts: 21	Re: 5.5 7 drop with 235/75/15 I'm looking at doing a 3 / 5 on my 72 long bed also . what did you use to do yours ? I'm also using 15 " tires. love the look of your truck.

05-19-2016, 09:59 AM	#5
66clow Registered User Join Date: Jun 2012 Location: Clearwater Beach Florida Posts: 872	Re: 5.5 7 drop with 235/75/15 Anyone use these from AutoZone? They are like $32 for 2in blocks. They have up to 3in I believe.

05-19-2016, 12:08 PM	#6
DBK81 Registered User Join Date: Jan 2016 Location: Saskatchewan Posts: 357	Re: 5.5 7 drop with 235/75/15 Lowering blocks are lowering blocks, just make sure U bolts are of decent grade, and you really can't go wrong. $32 seems like a hell of a deal. __________________ 1972 C10 - It might be old, but it's not slow

05-19-2016, 02:42 PM	#7
67 chevelle Registered User Join Date: May 2013 Location: WEST PALM FLORIDA Posts: 1,174	Re: 5.5 7 drop with 235/75/15 7 inch in back , you need a c-noch in the frame 5 in front , im sure 2 will have to come from lowering spindles , tire size and maybe other front end issues will come into play , lots of experiance on this board , someone who has done it will chime in , mine 3 5 , no issues , Ive herd of others doing 4 6 with no issues , but 5 7 , I know you need a c-notch minimum __________________ 68 Long Fleet , ly6 , turbo 350 , 3-5 drop , original paint , front discs 67 Small window , 7 foot bed , tweaked 6.0 LSX 2004R Medium Olive 58 Apache fleet , 235 , offy intake , dual exhaust , 4 on the floor , red/white 69 Long Fleet , Custom , 6.0, 4l60 , AC , Medium Olive

05-19-2016, 04:18 PM	#11
Blue/72 Senior Member Join Date: Aug 2014 Location: Sandy, Oregon Posts: 2,376	Re: 5.5 7 drop with 235/75/15 Here is a 5/7 static drop my dad did. Running 20 inch wheels and no frame modifications or clearance issues Attached Images __________________ My dad always says that HEI distributers are pointless... •1972 Custom/10 Deluxe. My first truck and I've had it since I was 7. Tilt, tach, AM/FM, 350, deep dish rally's, original paint and an increasing amount of NOS jewelry. It's always taking my money.. •1967 c10 with tach, dropped 3/5 on deep dish rally's •1972 Cheyenne Super. Sold



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