Slant *        6        Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum!
It is currently Wed Dec 24, 2025 1:58 am

All times are UTC-08:00




Post new topic  Reply to topic  [ 15 posts ] 
Author Message
 Post subject: slamming an 81 d 150
PostPosted: Tue May 11, 2010 8:14 pm 
Offline
Turbo EFI

Joined: Sat Feb 19, 2005 9:57 am
Posts: 1818
Car Model:
would like to drop my 81 about 3 inchs.... back is easy ...remove blocks under springs.... wondering about front???? cut springs????

keep on roddin'


Top
   
 Post subject:
PostPosted: Tue May 11, 2010 8:19 pm 
Offline
EFI Slant 6
User avatar

Joined: Thu Jul 19, 2007 10:18 pm
Posts: 317
Location: Phoenix, AZ
Car Model:
You never want to cut a coil spring. It looses spring rate or tension if you will. That means your truck will ride softer and bottom out on every bump. Try to find shorter aftermarket srings w the same rate as the stock ones.

,Cliff

_________________
'72 4 dr Dart
'63 4 dr Dart
Image


Top
   
 Post subject:
PostPosted: Tue May 11, 2010 8:27 pm 
Offline
Supercharged

Joined: Thu May 12, 2005 11:50 pm
Posts: 6291
Location: So California
Car Model: 64 Plymouth Valiant
Quote:
You never want to cut a coil spring. It looses spring rate or tension if you will. That means your truck will ride softer and bottom out on every bump. Try to find shorter aftermarket srings w the same rate as the stock ones.

,Cliff
Cutting a coil spring increases the spring rate..........

_________________
Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

8)


Top
   
 Post subject:
PostPosted: Tue May 11, 2010 8:30 pm 
Offline
Supercharged
User avatar

Joined: Thu Jan 27, 2005 8:32 pm
Posts: 7834
Location: Portland-ish
Car Model: Fiat 500e
Actually, cutting a spring raises the spring rate.

I've seen some very low D150s, but they had a lot more done than just shorter coils. I wish I could direct you to the forum where I saw them. I'm pretty sure they were using Dakota lowering spindles.

Here's a start! Yep, Dakota drop spindles with the tie rod hole reamed to fit the earlier tie rod ends. I had to ream the tie rod end hole on some early Belltech spindles to fit the larger tie rod ends of my '96 Dak. I also had a pretty significant bump steer problem with those spindles. :evil:

_________________
Joshua


Top
   
 Post subject:
PostPosted: Tue May 11, 2010 10:27 pm 
Offline
Turbo Slant 6
User avatar

Joined: Fri Feb 21, 2003 1:07 pm
Posts: 840
Location: Bremerton, WA
Car Model:
Search around over on the Moparts.com forum. I noticed a couple such threads there a few days ago.

_________________
Image


Top
   
 Post subject:
PostPosted: Tue May 11, 2010 10:31 pm 
Offline
EFI Slant 6
User avatar

Joined: Thu Jul 19, 2007 10:18 pm
Posts: 317
Location: Phoenix, AZ
Car Model:
I stand corrected, I knew it did one or the other. Either way not a good option in my opinion.

,Cliff :oops:

_________________
'72 4 dr Dart
'63 4 dr Dart
Image


Top
   
 Post subject:
PostPosted: Wed May 12, 2010 6:45 am 
Offline
EFI Slant 6
User avatar

Joined: Tue Mar 16, 2010 8:41 pm
Posts: 265
Location: Houston
Car Model:
I just advised a friend, with a 50's era Ford, not to cut the springs on his car in order to lower it.

He did it anyway, and his car looks great and is right where he wants it to sit.....but....the ride isn't as good as it was and it's bottoming out in situations where it wasn't before.

Back 25 years ago, I bought a 66 Chevy 4 door wagon, just to get the aluminum powerglide transmission out of it. The car was in fairly good shape (I wish I had it now!) and my brother and I were messing with it before we pulled the drivetrain and sent it to the crusher. Anyway, we got the torch out and heated the springs until it sat right where it looked cool. We then took it out for another ride and I was amazed at how the overall ride had deteriorated just from messing with the springs.

_________________
1954 Ford, Tudor Mainline
1976 Plymouth Valiant, 4 door

Image
www.automotive-ninja.com


Top
   
 Post subject:
PostPosted: Wed May 12, 2010 7:14 am 
Offline
Turbo EFI

Joined: Sat Feb 19, 2005 9:57 am
Posts: 1818
Car Model:
back in the early 70s ..was in south cal...lowriders would torch rear springs to get look...but i would like to have some kind of stock handling/ride


Top
   
 Post subject:
PostPosted: Wed May 12, 2010 8:01 am 
Offline
Turbo EFI
User avatar

Joined: Mon May 12, 2008 1:11 am
Posts: 1473
Location: North Georgia
Car Model:
Chevy S-10 coils will fit the D150, so there is that option. Bear in mind the Chevy stock coil is taller than the Dodge, so you'd need a lowering coil and it wouldn't lower as much as it would on the S-10. Also, 3/4 ton van lower control arms by themselves will lower a D150 with the stock coils. Just my $0.02 on the matter.

I found this out because I plan on going the other direction with mine.

_________________
If it was easy, everybody would be doing it.
Image


Top
   
 Post subject:
PostPosted: Sat Nov 13, 2010 5:25 am 
Offline
Turbo EFI

Joined: Sat Feb 19, 2005 9:57 am
Posts: 1818
Car Model:
found out my d150 doesnot have blocks on rear springs.... any thoughts on reversing front spring mounts...as in removing rivets and turning over mounts and bolting/welding back onto frame????


Top
   
 Post subject:
PostPosted: Sat Nov 13, 2010 8:26 am 
Offline
Turbo EFI
User avatar

Joined: Mon May 12, 2008 1:11 am
Posts: 1473
Location: North Georgia
Car Model:
Quote:
found out my d150 doesnot have blocks on rear springs.... any thoughts on reversing front spring mounts...as in removing rivets and turning over mounts and bolting/welding back onto frame????
A guy on moparts did it by "flipping" the front spring mount where it is riveted to the frame, then using a 2" chevy shackle on the rear. Search at moparts, it's a good write up.

_________________
If it was easy, everybody would be doing it.
Image


Top
   
 Post subject:
PostPosted: Sun Dec 12, 2010 9:48 am 
Offline
3 Deuce Weber

Joined: Fri Aug 06, 2010 5:38 pm
Posts: 69
Car Model:
From my experience cutting the springs is not too bad. BUT you must do it 1/2 a coil at a time then re-install and test drive. Any more and you risk it being to low or throwing off suspension geometry and most likely bottoming out. The spring rate does increase when you cut them but again, you are changing the suspension geometry so it will move in a different way that could make it bottom out... Also if you get carried away and chop a full coil or more right away you can't really glue it back on. 1 full coil cut out = 2-2 1/2 inches of drop.
This is time consuming which is why some doods think that torching the springs is faster... and it is... but this REALLY F's up the spring rate. It might seem OK for a couple weeks but the torching screw's up the "spring" of the spring and makes it squishy... thus... bottoming out and giving you a horrible ride.
Another way is to rent a spring compressor and get some coil spring clamps. Compress the spring and clamp the middle of the spring one coil to another and test it out. This way you can add a couple to drop it, keep the spring rate of the stock spring (for the most part) and if you change you mind... you can simply take off the clamps.

my .02 :)

_________________
1965 D100 225 slant 6, NP435 Utiline.


Top
   
PostPosted: Mon Dec 13, 2010 6:24 am 
Offline
Supercharged
User avatar

Joined: Wed Oct 12, 2005 9:00 pm
Posts: 3062
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
WHY????


Top
   
 Post subject:
PostPosted: Mon Dec 13, 2010 7:51 am 
Offline
Turbo EFI

Joined: Sat Feb 19, 2005 9:57 am
Posts: 1818
Car Model:
because everyone around here adds lift/big tires..as have I in past....I have 295/50 back and 275/60 front on 12inch rims.....just would like to lower it a bit ...might make getting in a bit easier as I get older than I ever thought I would be....he11 I tought I be dead over 30 years ago LMAO


keep on roddin'


Top
   
 Post subject:
PostPosted: Mon Dec 13, 2010 7:54 am 
Offline
Turbo EFI

Joined: Sat Feb 19, 2005 9:57 am
Posts: 1818
Car Model:
just to be different


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 15 posts ] 

All times are UTC-08:00


Who is online

Users browsing this forum: Bing [Bot] and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited