The sagging front on 1994 Sea Breeze

[Aigon77]

Hi Folks I was just wondering if any of you have had any experience or know where to look, if it is possible to lift the front of a 94 Seabreeze p30 chevy. I have the airbags on with 70 psi, put on new Konis have done a wheel aliment ( after the shock exchange). It looks to me like the unit could use a 3" or 4" lift at the front end in order to be level. I have found this alignment manual that looks like a good start.
http://users.sisna.com/cebula/P-Chas...entProcess.pdf
Any advice anyone can give would be really appreciated.

PS: The front is so low that on a gravel surface I can't use my front leveling jack without backing up with the park brake engaged, in order for the jacks get vertical under the unit..

[DriVer]

Quote:

Originally Posted by Aigon77 I have the airbags on with 70 psi, put on new Konis have done a wheel aliment ( after the shock exchange). It looks to me like the unit could use a 3" or 4" lift at the front end in order to be level.

Some of the new air cylinders will go up to 110 psi and I expect that would jack up the front of your rig. So as I see it air pressure in your cylinders will adjust your ride height. Try 10 PSI increments, goto 80 and see what it does.

P SERIES FRONT COIL SPRINGS AND AIR BAG CYLINDER
The air bag cylinders should be inspected periodically for signs of deterioration, damage or leaks. To verify possible leaks with the air bag removed from the vehicle, inflate the bag and submerge it in water and check for air bubbles. The standard track suspension system, 4,880 lb. or 5,500 lb. GAWR, utilizes an Airlift Heavy Duty Bag, Workhorse part no. W8803508. Thewide track suspension system, 6,000 lb. GAWR, utilized a high-pressure air cylinder from its introduction in Nov. 1999 to Aug. 14, 2001, Workhorse part no. W0001111. Beginning on August 15, 2001 a new coil spring, Workhorse part no. W0000991, was integrated along with the Airlift Heavy Duty Bag, Workhorse part no. W88035508, on all wide track 6,000 lb.

GAWR suspensions. The new coil spring originally was blue in color for ease of identification during the change then returned to the standard black starting in the production week of December 1, 2003. Regardless of the spring color the new coil spring is approximately 12% stiffer then the previous spring and is a direct replacement for all P32 chassis. Inflation pressures in either air bag cylinder should be maintained at 50 PSI minimum to avoid chafing.

Maximum pressure for the Airlift bag used on the 4,880 lb., 5,500 lb. and the 6000 lb. post Aug. 15, 2001 GAWR suspensions is 90 PSI. The high-pressure air cylinder use from Nov. 1999 to Aug. 15, 2001 on the wide track 6000 lb. GAWR suspensions has a maximum of 110 PSI. Air bag cylinder pressures will vary depending on load and preferred ride quality. Workhorse suggests initially setting the cylinders at 50-60 PSI for the 4,880 lb. axle and 80-90 PSI for the 5,500 lb. and 6,000 lb. axles. Finally air bag pressure should be adjusted for personal comfort and load within outlined recommendations. The general rule is higher inflation pressure
firmer the ride quality.

Note:

From the factory, Workhorse only supplies air cylinders on the front suspension; any rear air cylinders are aftermarket or installed by the body manufacturer.

Service Tip -

For units that appear to have a low front ride height due to operating at near front suspension capacity or if air bag cylinders have been run below minimum recommended pressure:

1. Jack up the motor home by the middle of the front cross member and allow the wheels to hang.

2. Remove the air from the air bag and re-inflate the air bag to the proper pressure.

3. Lower the unit and bleed off air (as necessary) to maintain proper air bag pressure.

This may provide some ride height improvement as the air bag tends to stretch lengthwise slightly with this procedure

[Aigon77]

I have installed those ones - P30/3500 Greater Than 28 ft. Motorhomes (Extra Super Duty) 350-6560SDM (Rated Load Per Coil is 4289 lbs) and they have lifted the motorhome by about 2" which is awesome . I got them from this website
350-6560SDM Coil Springs (Pair) [350-6560SDM] | $148.48

The installation took the shop about 3 hours plus wheel alignment, the ride is now much nicer not too firm and no too soft as it was before ( too soft was a problem on those soft dips after some bridges where you feel you will max out on your springs and hit the pavement ) The combination with Koni's and new sway bar bushings and new tires makes all the difference in the world!!!

Koni's - Momo, Koni, Piaa, Denso, Eibach, Hawk, Sparco at LTB Autosports $657
Tires - Local Tire Shop - Kelly's 19.8 8R about $800
Sway Bar Bushings -from NAPA - MOOG brand - $20