View Single Post
Old 11-22-2018, 12:15 AM   #4
SCOTI
Registered User
 
SCOTI's Avatar
 
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,910
Re: ‘74 C-30 Dually Front Suspension Questions

Quote:
Originally Posted by bigtexasrob View Post
Re: Pancaked x-member
This is the process of cutting and raising the bottom of the stock front member, correct?

Re: Modified a-arms and springs/spindles
I’m looking for a 3” wider/3” lower arm with a bag bracket, and will then install a 3” drop spindle. By my college drop-out math, it should ride comfortably at the correct height, maintain usable wheel angle (fenders will be modified as well) and lay on the ground or very close to it.
Yes on the Pancaked x-member (also known as sectioning).

I'm guessing your plan is to run 3/4 ton hubs & longer arms to allow dialing in dimensions for some shaved 10-lugs (thus the need for longer/custom arms)?

My dually has a 1.5 pancaked/sectioned x-member, 3" spindles, & bags. It plants the front x-member & frame rails firmly on the ground when air'd out. It rides like a stock height truck. I do have aftermarket front inner wheel tubs & step notch w/raised floor/tubs in the rear. Nothing hits @ all.

At ride height.....
Front is 26" @ the center of the wheel well lip w/a ~30"OD front tire.
Rear is 27" @ the same spot w/a 31.5"OD tire.
Frame rails are about 4.5-ish inches off the ground under the center of the cab.
__________________
67SWB-B.B.RetroRod
64SWB-Recycle
89CCDually-Driver/Tow Truck
99CCSWB Driver
All Fleetsides
@rattlecankustoms in IG

Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
SCOTI is offline   Reply With Quote