Lifting my 72' K20 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Chevy1TonFun · 11-24-2007, 07:12 PM

1972 Chevy Cheyenne 3/4 4x4

Custom 12" Lift Kit
Whiplash Springs
ProComp Shocks
ProComp Brakelines
Superlift Hardware

Custom Crossover steering
OEM 2WD Steering Box
Ford 4WD Pitman Arm
Custom DOM Tubing Tie Rod with Hime Joints
Passenger Steering Arm
ProComp Dual Steering Stabilizer

Wheels & Tires
Mickey Thompson Classic II 17x9 8 Lug
Interco IROCK Swampers 39.5x13.5x17LT

Before:

During:

That is where it sits for now. Tomorrow I will finish lifting the front. Then the steering. Have a great Turkey Day!!

va_tlc · 11-24-2007, 07:31 PM

wow those springs look beefy, thats what i call going from mild to wild in a short time, yall dont have any lift laws in cali? anyways becareful working under there and enjoy your new hi life, looks great

jcnalley · 11-24-2007, 09:13 PM

Ridin',looks good.Is there any advantage to running the 4x2 steering box,or is it required for the crossover steering?

Chevy1TonFun · 11-24-2007, 09:40 PM

Quote:

Originally Posted by va_tlc

wow those springs look beefy, thats what i call going from mild to wild in a short time, yall dont have any lift laws in cali? anyways becareful working under there and enjoy your new hi life, looks great

We do have lift laws, we are allowed up to 30" from the frame to the ground.

Quote:

Originally Posted by jcnalley

Ridin',looks good.Is there any advantage to running the 4x2 steering box,or is it required for the crossover steering?

It is required due to having to rotate your pitman arm 90 degrees.

manimal · 11-25-2007, 06:10 PM

Quote:

Originally Posted by Ridin' High

We do have lift laws, we are allowed up to 30" from the frame to the ground.

It is required due to having to rotate your pitman arm 90 degrees.

You can fight the lift law. Just point out all those poser lifted trucks(F250/F350) with 40's on them. Most cops arent going to bother you anyway. UNLESS youre being stupid.

BTW your truck looks AWESOME!!!!!!!!!
-Lance

**Zoomad75** · 11-25-2007, 12:06 AM

Looks awesome! The 2wd box is needed when using x-over steering. The stock 4wd box swings front to back, where as the 2wd box swings side to side.

Since the point of x-over steering is to have the drag link connect to the pass side knuckle, the only way to do it is with a 2wd box swinging side to side.

**Yukon Jack** · 11-25-2007, 04:31 PM

Looking great - haven't heard of those springs yet. Will look forward to hearing what you think of them.

JAKES 68GMC · 11-25-2007, 05:01 PM

looks great, makes me want to lift my truck.

Chevy1TonFun · 11-25-2007, 11:20 PM

Update...

My Dad and I finished putting the top of the motor back together this morning (had blown head gaskets). I also bought new
grade 8 bolts for the leaf springs. So this is where I am tonight...
I got the front suspension all ripped apart...

This last is just to show how high the truck is! Holy crap it is tall, I didn't even realize it until I saw the picture. I'm 5'8".
Just in case you are wondering, the cross member is 27" from the ground. Still legal!

hdflstf · 11-25-2007, 11:46 PM

Guess it won't be going into the garage any more..

msgross · 11-26-2007, 09:34 AM

wow...what a difference.... looks good...

Bishops Trucks · 11-26-2007, 10:02 AM

Looks good with the lift. Keep us posted.

Chevy1TonFun · 11-26-2007, 09:08 PM

Josh (brother-in-law) and I finally finished the front today. Man does it look great. It sits at 27 3/4" from the ground to the cross member.

I still have the steering to do, including the steering stablizers, and torque everything.

72cheyennesuper20 · 11-26-2007, 11:09 PM

Looks way cool.

Bishops Trucks · 11-26-2007, 11:22 PM

Looks real good sitting way up in the air.

Matt72blaze · 11-27-2007, 12:13 AM

sweet jesus that looks good!!!

i found the whiplash website...did you use the 73-80's 12" kit or have some custom springs made? did you have to do any modifications to the frame, or anything else, to get these to fit?

Chevy1TonFun · 11-27-2007, 01:46 AM

Quote:

Originally Posted by Matt72blaze

sweet jesus that looks good!!!

i found the whiplash website...did you use the 73-80's 12" kit or have some custom springs made? did you have to do any modifications to the frame, or anything else, to get these to fit?

I did use the springs from the 73-87's 12" kit, but they were custom springs. Whiplash normally runs an 8" spring and 4" block in the rear. Robert at Whiplash hooked me up with some custom 12" rears that were 4-5" shorter. 73-87' springs are 49" long where 67-72' are 42"long. The shackle took care of the extra few inches. As far as modifications the only thing I did was trimmed the bushing sleeve. It kept binding on the spring hanger. I can't remember off hand, what the spring width is on the 73-80's, but the front bushing was a little on the wide side as well, but I got it to fit.

earl87gta · 11-27-2007, 03:25 AM

Looks good . That rear spring hanger for the front in the pic it looks like the eye of the spring is resting on the frame is it just the pic?

Chevy1TonFun · 11-27-2007, 11:22 AM

Quote:

Originally Posted by earl87gta

Looks good . That rear spring hanger for the front in the pic it looks like the eye of the spring is resting on the frame is it just the pic?

No its has an inch or two between the spring and the frame.

PrerunnerRob · 11-27-2007, 12:22 PM

Lookin good! What gears are you going to run?

Chevy1TonFun · 11-27-2007, 01:15 PM

Quote:

Originally Posted by PrerunnerRob

Lookin good! What gears are you going to run?

I am going to be building a Chevy 3/4 Dana 60 with a Detroit Locker and 5.13 gears. Same goes for the front except I haven't decided whether I want to keep my Dana 44 or go to a Dana 60.

Chevy1TonFun · 11-28-2007, 12:22 AM

Here are some better picture I took this morning...

earl87gta · 11-28-2007, 12:37 AM

Do you have 4:56s in it now? with that eaton rear you have i would think you have 4:56 gears in it. you may find out if you do a lot of on road driving you dont like the 5.13 there great for trails but to steep for the road. I have 38s and 4:56s and doing 65 is pushing it hard. I can only do 70 down hill with a strong wind. what trans are you using ? I have a sm465 so no over drive for me.

Chevy1TonFun · 11-28-2007, 10:01 AM

Quote:

Originally Posted by earl87gta

Do you have 4:56s in it now? with that eaton rear you have i would think you have 4:56 gears in it. you may find out if you do a lot of on road driving you dont like the 5.13 there great for trails but to steep for the road. I have 38s and 4:56s and doing 65 is pushing it hard. I can only do 70 down hill with a strong wind. what trans are you using ? I have a sm465 so no over drive for me.

You know I haven't checked to see what gear ratio is in my eaton. I'll have to go look today. I am planning to run the eaton for a few months until I can finish building my Dana 60. I have a turbo 350 trans with a high performance 337 small block chevy.

Quote:

Originally Posted by Bishops Trucks

That looks real good. I think your brake line needs to be a little longer. Get one long enough to get a 4" loop in it. Just my opinion.

You are right, I'm planning to get longer ones. Procomp sent me those telling me that they are for a 12" lift. BS those are the same length that they send with their 6" lift kits. Thanks for the advise. Its on the to do list.

Quote:

Originally Posted by mothertrucker424

is your truck grey or primer?

The truck is has primer on it for now. I haven't decided when or what to paint it.

Bishops Trucks · 11-28-2007, 12:39 AM

That looks real good. I think your brake line needs to be a little longer. Get one long enough to get a 4" loop in it. Just my opinion.

11-24-2007, 07:12 PM	#1
Chevy1TonFun Grease Monkey Join Date: Oct 2007 Location: Fresno CA Posts: 750	Lifting my 72' K20 1972 Chevy Cheyenne 3/4 4x4 Custom 12" Lift Kit Whiplash Springs ProComp Shocks ProComp Brakelines Superlift Hardware Custom Crossover steering OEM 2WD Steering Box Ford 4WD Pitman Arm Custom DOM Tubing Tie Rod with Hime Joints Passenger Steering Arm ProComp Dual Steering Stabilizer Wheels & Tires Mickey Thompson Classic II 17x9 8 Lug Interco IROCK Swampers 39.5x13.5x17LT Before: During: That is where it sits for now. Tomorrow I will finish lifting the front. Then the steering. Have a great Turkey Day!!

11-24-2007, 07:31 PM	#2
va_tlc Registered User Join Date: Nov 2005 Location: VIRGINIA Posts: 905	Re: Lifting my 72' K20 wow those springs look beefy, thats what i call going from mild to wild in a short time, yall dont have any lift laws in cali? anyways becareful working under there and enjoy your new hi life, looks great __________________ 1969 rs 1966fastback 1969swbc/10 2006gt 1972swb4x4

11-24-2007, 09:13 PM	#3
jcnalley Registered User Join Date: Jul 2007 Location: Rockingham,NC Posts: 31	Re: Lifting my 72' K20 Ridin',looks good.Is there any advantage to running the 4x2 steering box,or is it required for the crossover steering?

11-25-2007, 12:06 AM	#6
Zoomad75 K5Camper Join Date: Mar 2004 Location: Pueblo, CO Posts: 1,513	Re: Lifting my 72' K20 Looks awesome! The 2wd box is needed when using x-over steering. The stock 4wd box swings front to back, where as the 2wd box swings side to side. Since the point of x-over steering is to have the drag link connect to the pass side knuckle, the only way to do it is with a 2wd box swinging side to side. __________________ Rob Z. 1975 K5 350/465/205/D44/12b 4" lift on 35's- RIP 1991 K5 8.1L/NV4500/241/D44/14b FWC Camper

11-25-2007, 04:31 PM	#7
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,683	Re: Lifting my 72' K20 Looking great - haven't heard of those springs yet. Will look forward to hearing what you think of them. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

11-25-2007, 05:01 PM	#8
JAKES 68GMC Aluminum slot wheels rule... Join Date: Jan 2006 Location: Maine Posts: 6,212	Re: Lifting my 72' K20 looks great, makes me want to lift my truck.

11-25-2007, 11:20 PM	#9
Chevy1TonFun Grease Monkey Join Date: Oct 2007 Location: Fresno CA Posts: 750	Re: Lifting my 72' K20 Update... My Dad and I finished putting the top of the motor back together this morning (had blown head gaskets). I also bought new grade 8 bolts for the leaf springs. So this is where I am tonight... I got the front suspension all ripped apart... This last is just to show how high the truck is! Holy crap it is tall, I didn't even realize it until I saw the picture. I'm 5'8". Just in case you are wondering, the cross member is 27" from the ground. Still legal! __________________ Tow Rig: 2012 Chevy 2500HD CCSB LTZ Z71 4x4 Duramax Ultimate Offroad Build: 1978 Chevy Silverado K30 Crewcab Build Link http://67-72chevytrucks.com/vboard/s...d.php?t=654053 Mud Truck: 1972 Chevy Cheyenne K30 4x4, 468/400/205, D60/D70HD, 18" Custom Lift, 17x39" IROKs FOR SALE http://67-72chevytrucks.com/vboard/c...ton-4x4&cat=12

11-25-2007, 11:46 PM	#10
hdflstf Registered User Join Date: Oct 2007 Location: Desert Southwest Posts: 540	Re: Lifting my 72' K20 Guess it won't be going into the garage any more..

11-26-2007, 09:34 AM	#11
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: Lifting my 72' K20 wow...what a difference.... looks good... __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

11-26-2007, 10:02 AM	#12
Bishops Trucks KEEP ON TRUCKIN' Join Date: Jun 2005 Location: Sterling, Va. Posts: 5,731	Re: Lifting my 72' K20 Looks good with the lift. Keep us posted. __________________ JIM '97 GMC Sierra K1500 '95 Chevy Silverado C1500 '71 Cheyenne Z71 / LT1 & 4-Speed SWB K/10 Father/Son Project http://www.youtube.com/watch?v=4l689JKXPnA http://67-72chevytrucks.com/vboard/payments.php "LIVIN' FREE FOREVER"

11-26-2007, 09:08 PM	#13
Chevy1TonFun Grease Monkey Join Date: Oct 2007 Location: Fresno CA Posts: 750	Re: Lifting my 72' K20 Josh (brother-in-law) and I finally finished the front today. Man does it look great. It sits at 27 3/4" from the ground to the cross member. I still have the steering to do, including the steering stablizers, and torque everything. __________________ Tow Rig: 2012 Chevy 2500HD CCSB LTZ Z71 4x4 Duramax Ultimate Offroad Build: 1978 Chevy Silverado K30 Crewcab Build Link http://67-72chevytrucks.com/vboard/s...d.php?t=654053 Mud Truck: 1972 Chevy Cheyenne K30 4x4, 468/400/205, D60/D70HD, 18" Custom Lift, 17x39" IROKs FOR SALE http://67-72chevytrucks.com/vboard/c...ton-4x4&cat=12

11-26-2007, 11:09 PM	#14
72cheyennesuper20 Registered User Join Date: May 2005 Location: Portland, OR. Posts: 414	Re: Lifting my 72' K20 Looks way cool.

11-26-2007, 11:22 PM	#15
Bishops Trucks KEEP ON TRUCKIN' Join Date: Jun 2005 Location: Sterling, Va. Posts: 5,731	Re: Lifting my 72' K20 Looks real good sitting way up in the air. __________________ JIM '97 GMC Sierra K1500 '95 Chevy Silverado C1500 '71 Cheyenne Z71 / LT1 & 4-Speed SWB K/10 Father/Son Project http://www.youtube.com/watch?v=4l689JKXPnA http://67-72chevytrucks.com/vboard/payments.php "LIVIN' FREE FOREVER"

11-27-2007, 12:13 AM	#16
Matt72blaze Registered User Join Date: Sep 2007 Location: Wilmington, OH Posts: 60	Re: Lifting my 72' K20 sweet jesus that looks good!!! i found the whiplash website...did you use the 73-80's 12" kit or have some custom springs made? did you have to do any modifications to the frame, or anything else, to get these to fit? __________________ 1970 C20 now a K30 1986 3+3 Dually Last edited by Matt72blaze; 11-27-2007 at 12:19 AM.

11-27-2007, 03:25 AM	#18
earl87gta Senior Member Join Date: Dec 2003 Location: Kingsport TN Posts: 4,641	Re: Lifting my 72' K20 Looks good . That rear spring hanger for the front in the pic it looks like the eye of the spring is resting on the frame is it just the pic? __________________ Earl 68 2500 4x4 GMC Burb



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11-27-2007, 12:22 PM	#20
PrerunnerRob Registered User Join Date: Jan 2007 Location: San Jose Posts: 847	Re: Lifting my 72' K20 Lookin good! What gears are you going to run?

11-28-2007, 12:22 AM	#22
Chevy1TonFun Grease Monkey Join Date: Oct 2007 Location: Fresno CA Posts: 750	Re: Lifting my 72' K20 Here are some better picture I took this morning... __________________ Tow Rig: 2012 Chevy 2500HD CCSB LTZ Z71 4x4 Duramax Ultimate Offroad Build: 1978 Chevy Silverado K30 Crewcab Build Link http://67-72chevytrucks.com/vboard/s...d.php?t=654053 Mud Truck: 1972 Chevy Cheyenne K30 4x4, 468/400/205, D60/D70HD, 18" Custom Lift, 17x39" IROKs FOR SALE http://67-72chevytrucks.com/vboard/c...ton-4x4&cat=12

11-28-2007, 12:37 AM	#23
earl87gta Senior Member Join Date: Dec 2003 Location: Kingsport TN Posts: 4,641	Re: Lifting my 72' K20 Do you have 4:56s in it now? with that eaton rear you have i would think you have 4:56 gears in it. you may find out if you do a lot of on road driving you dont like the 5.13 there great for trails but to steep for the road. I have 38s and 4:56s and doing 65 is pushing it hard. I can only do 70 down hill with a strong wind. what trans are you using ? I have a sm465 so no over drive for me. __________________ Earl 68 2500 4x4 GMC Burb

11-28-2007, 12:39 AM	#25
Bishops Trucks KEEP ON TRUCKIN' Join Date: Jun 2005 Location: Sterling, Va. Posts: 5,731	Re: Lifting my 72' K20 That looks real good. I think your brake line needs to be a little longer. Get one long enough to get a 4" loop in it. Just my opinion. __________________ JIM '97 GMC Sierra K1500 '95 Chevy Silverado C1500 '71 Cheyenne Z71 / LT1 & 4-Speed SWB K/10 Father/Son Project http://www.youtube.com/watch?v=4l689JKXPnA http://67-72chevytrucks.com/vboard/payments.php "LIVIN' FREE FOREVER"

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