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 02-05-2016, 01:27 PM   #1
Jose's 69
Registered User
 
Join Date: Oct 2015
Location: Norwalk, CA
Posts: 114
69 c20 lowering help.

I'm starting my front disc upgrade and lowering project soon on my 69 c20. Have some questions. I'm using a kit with a 2.5 inch drop spindle and going with a 1 inch drop spring. Can I keep the stock height shocks in front with that setup or do I need drop shocks? For the rear I'm going with a 5 inch drop spring. I know I need to relocate the shock mounts but as far as drop springs I read somewhere on here that I can use the same ones used on front side as drop shocks in the back. Is this true? Thanks in advance for your help.
Jose's 69 is offline   Reply With Quote
Old 02-05-2016, 03:10 PM   #2
brad_man_72
the boat guy
 
brad_man_72's Avatar
 
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
Re: 69 c20 lowering help.

1" suspension drop in the front can use stock shocks no problem. I'm still using my stock rear shocks on my 6" drop, I flipped the stock lower shock mounts.
__________________
67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck
66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate.
28, model a rpu project,
brad_man_72 is offline   Reply With Quote
Old 02-05-2016, 04:17 PM   #3
FatherandSon
Registered User
 
Join Date: Mar 2013
Location: Riverside, CA
Posts: 55
Re: 69 c20 lowering help.

Good timing for me! I just logged in to ask similar Q's. I have a 69 C20 I want to do disc drop to as well. Which kit are you using? Are you staying w/8 lug?

Has anyone used POL C20 kit? https://www.performanceonline.com/63...-deluxe-8-lug/

Any better options out there? Anyone have photos of their completed drop so I can see how low to go?
FatherandSon is offline   Reply With Quote
Old 02-05-2016, 04:29 PM   #4
Jose's 69
Registered User
 
Join Date: Oct 2015
Location: Norwalk, CA
Posts: 114
Re: 69 c20 lowering help.

That's the kit I will be using from POL. Keeping it 8 lug. Will pick it up Wednesday. Saves me 130 for shipping. If you get it let them know before you go because they have to build the kit. I also found this thread that seems to answer the drop shock question.

http://67-72chevytrucks.com/vboard/s...d.php?t=693745
Jose's 69 is offline   Reply With Quote
Old 02-05-2016, 04:51 PM   #5
FatherandSon
Registered User
 
Join Date: Mar 2013
Location: Riverside, CA
Posts: 55
Re: 69 c20 lowering help.

Thanks Jose
FatherandSon is offline   Reply With Quote
Old 02-05-2016, 05:03 PM   #6
FatherandSon
Registered User
 
Join Date: Mar 2013
Location: Riverside, CA
Posts: 55
Re: 69 c20 lowering help.

Would sure like to see photos of 67-72 C20 lowered with front drop coils & drop spindles and rear drop coils noting how many inches drop for front vs rear coil. I understand if I go past 4" rear drop I have to adjust shock mounts and panhard.
FatherandSon is offline   Reply With Quote
Old 09-20-2017, 05:07 PM   #7
kileyb
Registered User
 
kileyb's Avatar
 
Join Date: Oct 2014
Location: Salem, Or
Posts: 25
Re: 69 c20 lowering help.

Quote:
Originally Posted by Jose's 69 View Post
That's the kit I will be using from POL. Keeping it 8 lug. Will pick it up Wednesday. Saves me 130 for shipping. If you get it let them know before you go because they have to build the kit. I also found this thread that seems to answer the drop shock question.

http://67-72chevytrucks.com/vboard/s...d.php?t=693745
Jose, I used POL 2.5 drop spindles and have major rubbing now. May I ask what tire size you are using? I've got 245/75 16's right now. My tire guy is talking different wheels with more positive offset and going down to 225's or 215's but I'm concerned it will lose the near fender tucked look that I have now.
kileyb is offline   Reply With Quote
Old 09-20-2017, 06:42 PM   #8
Jose's 69
Registered User
 
Join Date: Oct 2015
Location: Norwalk, CA
Posts: 114
Re: 69 c20 lowering help.

I used 225/75 16. Here's what it looks like now.
Attached Images
 
Jose's 69 is offline   Reply With Quote
Old 09-21-2017, 03:48 PM   #9
kileyb
Registered User
 
kileyb's Avatar
 
Join Date: Oct 2014
Location: Salem, Or
Posts: 25
Re: 69 c20 lowering help.

Nice!!!

Looks like your steel wheels have more positive offset.
Attached Images
   
kileyb is offline   Reply With Quote
Old 10-21-2017, 12:42 PM   #10
FatherandSon
Registered User
 
Join Date: Mar 2013
Location: Riverside, CA
Posts: 55
Re: 69 c20 lowering help.

Here's how my 69 C20 came out with same POL kit. I had already replaced the stock split rims with craigslist steelies and 265/70 tires and decided to leave them until they wear out. I have occasional rubbing in front when I go over a bump/dip too fast while turning but otherwise ok. Don't remember where (maybe CPP) but I recently saw drop spindles that are engineered to bring things in a bit but don't know where or if they are compatible with POL kit. Hope this helps.
Attached Images
   
FatherandSon is offline   Reply With Quote
Old 10-22-2017, 05:52 PM   #11
kileyb
Registered User
 
kileyb's Avatar
 
Join Date: Oct 2014
Location: Salem, Or
Posts: 25
Re: 69 c20 lowering help.

My body mounts are old and crushed down. I'm replacing those first to see how things go. Once that's done I've got to determine if I need different wheels and/or see if the body is still sitting crooked on the frame.

By the way, looks good!
__________________
71 c20 LWB
kileyb is offline   Reply With Quote
Old 10-25-2017, 12:58 AM   #12
FatherandSon
Registered User
 
Join Date: Mar 2013
Location: Riverside, CA
Posts: 55
Re: 69 c20 lowering help.

Thanks. Be sure to check/replace the rear axle bump stops. They're going to get some use once you lower the rear.
FatherandSon is offline   Reply With Quote
Reply

Bookmarks


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 04:56 PM.


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