The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-23-2005, 02:59 PM   #1
farside847
Registered User
 
farside847's Avatar
 
Join Date: Feb 2005
Location: Bay Area, California
Posts: 995
Stupid lowering question...

Sounds like the best way to lower a 71 C10 is to use new spindles
in front. How hard is this to do? Will I need any special tools, or can
everything be done with normal wrenches/sockets/etc? Will I need to
bleed the brakes or anything?

Also, when doing a 4" coil drop in the back, do the shocks need to
be replaced or can stock height ones be left in place?

thanks!
__________________
1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree
farside847 is offline   Reply With Quote
Old 05-23-2005, 03:10 PM   #2
Classic Heartbeat
Project Junkie! Fishing Poor!!
 
Classic Heartbeat's Avatar
 
Join Date: Dec 1999
Location: Olympia,Wa. 98512
Posts: 10,766
Well it is a fairly simple thing to do if you have the right tools. You will need a pickle fork to seperate the ball joints and tie rods. You can take the calipers loose without removing the brake lines though, so no bleeding nessasary. If you drop 4" in the rear you should at the very least use 4" rear drop shocks and should also install a shock relocating kit. WES www.ClassicHeartbeat.com
__________________
On-line catolog
Classic Heartbeat Pickup Parts
WEHEPP@comcast.net
Call us Toll Free (888) 338-2502
Like Us on Facebook
No appointment necessary.
72 BB Chevy Custom Deluxe / Custom Camper
67 I-6 (Soon to be 5.7 LS1) Panel
68 BB Chevy Short Bed
72 6.0 LQ9 Short Bed Chevy 4X4
Olympia's fastest growing truck parts supplier.
Olympia's home for Wayward Chevys
Classic Heartbeat is offline   Reply With Quote
Old 05-23-2005, 03:56 PM   #3
ehjorten
Registered User
 
Join Date: Jan 2001
Location: Kirkland, WA, U.S.A.
Posts: 32
A pickle fork isn't entirely necessary though. You can get the ball-joints to come apart rather easily if you use a couple of heavy weight hammers or sledges. Sometimes is can be difficult to swing the sledge. If you only loosen the ball joint nuts and let the spring pressure help you it works pretty easy. MAKE SURE THE NUT IS ONLY LOOSENED, NOT REMOVED, AND NOT ONLY ENGAGED BY A COUPLE OF THREADS! I don't want you hurting yourself when the ball-joints pop-apart under spring pressure.

If you do use the pickle fork either replace the ball-joints at that time or have new rubber shields because the pickle fork will most likely destroy them.
__________________
'68 Chevy Stepside in Frame-up Restoration process.
292 CID Clifford Performance Modified
T56 6-speed Tranny
Slammed, Custom IFS and IRS
Money?...Too Much!
ehjorten is offline   Reply With Quote
Old 05-24-2005, 01:29 AM   #4
BraveDave
Registered User
 
Join Date: Dec 2002
Location: Magnolia, Texas
Posts: 336
I used 4" dropped springs out back and didn't replace the shocks. I have had no problem at all.
__________________
'72 Chevy Cheyenne Super, '56 Chevy Bel Air,'56 Chevy Nomad, '61 Chevy Impala, '64 Cadillac Fleetwood, 1966 Thunderbird Convertible
BraveDave is offline   Reply With Quote
Old 05-24-2005, 12:29 PM   #5
68LSS1
Registered User
 
68LSS1's Avatar
 
Join Date: Dec 2002
Location: Tampa
Posts: 1,191
I agree that the shocks should be fine for a 4" drop but I would add that the shock relocation makes a big difference on the ride. I agree with the post about the ball joint seperation but I usually leave the floor jack under there for added insurance (with a gap there so the spring pressure can help pop the ball joints loose but catch the lower arm to retainthe spring).
__________________
'68 Short Step
LS1/T56, Hydratech, Fatman Fabrications Stage III, Baer, Hot Rods to Hell, US Body, S&W, etc
68LSS1 is offline   Reply With Quote
Old 05-24-2005, 01:52 PM   #6
68speedalert
Semi-Senior Member
 
68speedalert's Avatar
 
Join Date: Feb 2003
Location: Washington, MO
Posts: 390
Agree with the no fork procedure with the jack under the control arm. Don't hit on the top of the stud; hit the part that the stud goes thru. HARD. Hit the joint at 90 degrees from the direction of the stud.

You'll need a GOOD pair of wire cutters to remove the cotter pins.

Depending on your wheels, you may need to grind away the lower control arms. Numberoneson's '72 has 8-inch GM ralleys ('87 or older) and they rubbed the arms when the wheels were turned tight.

Don't get the adjustable track bar, it isn't needed on 4 inch. We didn't relocate the shocks either.

His '72 drives better than any truck these years that I've ever driven (I've driven my share). It's a short-step and has no bounce at all. I think we got the parts from GMC Pauls.
__________________
'68 50th Anniversery LWB Custom Fleetside, '77 305 v-8, turbo 350, factory speed alert (still works), '71 drivetrain w/front discs. Some call it ugly yellow, others call it Ochre
'83 Jeep CJ-7, <80,000 miles, original owner
'04 Chevy Suburban, 4x4, 2500, 6.0 ltr, Predator Diablo programmer
'95 GMC K1500 Extended cab
68speedalert is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:03 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com