What size lowering blocks to use? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Fastest32 · 10-10-2017, 10:54 AM

I have a bolt in c notch and I ordered a super track bar already. I have the shock relocating brackets and I'm running bags. I want to order some blocks so that I can run more air in the bags but I cant decide whether to run 1.5 or 2 inch blocks I'm more than likely gonna run 15 inch wheels. Any input?

Indian113 · 10-10-2017, 11:13 AM

I think 1 inch might be your limit as you said you were running 15 inch wheels. If you go 2 inches your axle bolts might be below your scrub line.

Fastest32 · 10-10-2017, 11:15 AM

Thanks.

**The Rocknrod** · 10-10-2017, 11:18 AM

The scrub line. There are those who tempt fate. But it can be an expensive attempt.

**PGSigns** · 10-11-2017, 06:44 AM

I have 1 1/4" blocks in mine with 3 degrees machined into the top to correct the pinion angle. The blocks move the rear forward thats as tall as I wanted to go and also keep the scrub line intact.
Jimmy

sambrutay · 10-13-2017, 12:10 PM

Quote:

Originally Posted by PGSigns

I have 1 1/4" blocks in mine with 3 degrees machined into the top to correct the pinion angle. The blocks move the rear forward thats as tall as I wanted to go and also keep the scrub line intact.
Jimmy

Where did you buy them from if you don't mind me asking.

**The Rocknrod** · 10-13-2017, 01:23 PM

CPP sells them:
http://www.ebay.com/itm/64-65-67-68-...19.m1438.l2649

vin63 · 10-13-2017, 02:13 PM

I run a 2-inch block...it's close but the tubular trailing arm mount clears.

**PGSigns** · 10-13-2017, 02:17 PM

I machined mine.
Jimmy

sixty4bigwindow · 10-23-2017, 12:49 PM

Ok, so question on this. I am getting a set of 02 wrangler rear springs, and have a 2 inch block of steel that I will throw on with custom U bolts. With the amount of drop this will give me, should I be using an axle shim??

**Palf70Step** · 10-23-2017, 07:17 PM

I have heard from the folks that used them is the wrangle springs are too soft. they really don't support the truck well even with an empty bed.

Indian113 · 10-23-2017, 09:14 PM

I have TJ Springs and they are coming out this winter. Limit's hauling even one or two buddies at a Car Show. I am going with the correct lowered springs.

10-10-2017, 10:54 AM	#1
Fastest32 Registered User Join Date: Nov 2009 Location: Austin Texas Posts: 370	What size lowering blocks to use? I have a bolt in c notch and I ordered a super track bar already. I have the shock relocating brackets and I'm running bags. I want to order some blocks so that I can run more air in the bags but I cant decide whether to run 1.5 or 2 inch blocks I'm more than likely gonna run 15 inch wheels. Any input? __________________ BaBaBooey BaBaBooey GO SPURS GO!!!

10-10-2017, 11:13 AM	#2
Indian113 Registered User Join Date: Sep 2009 Location: Monroe,Iowa Posts: 4,370	Re: What size lowering blocks to use? I think 1 inch might be your limit as you said you were running 15 inch wheels. If you go 2 inches your axle bolts might be below your scrub line.

10-10-2017, 11:15 AM	#3
Fastest32 Registered User Join Date: Nov 2009 Location: Austin Texas Posts: 370	Re: What size lowering blocks to use? Thanks. __________________ BaBaBooey BaBaBooey GO SPURS GO!!!

10-10-2017, 11:18 AM	#4
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: What size lowering blocks to use? The scrub line. There are those who tempt fate. But it can be an expensive attempt. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

10-11-2017, 06:44 AM	#5
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: What size lowering blocks to use? I have 1 1/4" blocks in mine with 3 degrees machined into the top to correct the pinion angle. The blocks move the rear forward thats as tall as I wanted to go and also keep the scrub line intact. 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

10-13-2017, 01:23 PM	#7
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: What size lowering blocks to use? CPP sells them: http://www.ebay.com/itm/64-65-67-68-...19.m1438.l2649 __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

10-13-2017, 02:13 PM	#8
vin63 It's Better With Nitro Join Date: Apr 2008 Location: Chino Hills, CA Posts: 2,262	Re: What size lowering blocks to use? I run a 2-inch block...it's close but the tubular trailing arm mount clears. Attached Images __________________ 1963 C-10: Deluxe-optioned cab, shortbed, fleetside Pontiac 462 ci, Kauffman D-Port alum. heads 4L80E, narrowed sheetmetal Ford 9-inch Tubular front and rear suspension Custom 6-piston front disc and 4-piston rear disc brakes

10-13-2017, 02:17 PM	#9
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: What size lowering blocks to use? I machined mine. 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

10-23-2017, 12:49 PM	#10
sixty4bigwindow Registered User Join Date: Feb 2016 Location: BACK in Southern Oregon... Don't ask Posts: 151	Re: What size lowering blocks to use? Ok, so question on this. I am getting a set of 02 wrangler rear springs, and have a 2 inch block of steel that I will throw on with custom U bolts. With the amount of drop this will give me, should I be using an axle shim??

10-23-2017, 07:17 PM	#11
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,249	Re: What size lowering blocks to use? I have heard from the folks that used them is the wrangle springs are too soft. they really don't support the truck well even with an empty bed. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

10-23-2017, 09:14 PM	#12
Indian113 Registered User Join Date: Sep 2009 Location: Monroe,Iowa Posts: 4,370	Re: What size lowering blocks to use? I have TJ Springs and they are coming out this winter. Limit's hauling even one or two buddies at a Car Show. I am going with the correct lowered springs.

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