Classic Winnebagos & Vintage RVs

It is not real clear what manuals apply to the Chevy P30 Chassis so I complied a list to make it easier for everyone.
Basically there is a Service Manual and a Component Overhaul Manual.  The confusing part is that the P30 chassis is included in the Light Duty Truck manual.  It was only in the late 80's that GM moved the P chassis to a seperate manual.  It is also my understanding that, it was not until the late 80's that GM moved the wiring diagrams to a seperate manual.  There is a general service manual that provides a world of useful information.  It covers mid 70's through 1992.
Please be aware that Bisko Manuals does cary some of these on CD-ROM which are a lot cheaper.

Hope you find this useful,
Dave
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   

Year	Service Manual	Unit Repair Manual	Wiring Manual
1974	ST 330-74     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-74.jpg&hash=26c46b85de6660b6edf5660fcdde4a7816c98ab8)	ST 333-74	ST 357-74
1975	ST 330-75 Supplement Use with ST 330-74 Base Manual     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-75.jpg&hash=3de35f444bb75f75190b5e77716e228899c8bc33)	ST 333-75	----
1976	ST 330-76 Supplement Use with ST 330-74 Base Manual     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-76.jpg&hash=e0f2284795b42a86c5d94e93bb66fd81857aaec5)	ST 333-76	----
1977	ST 330-77     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-77.jpg&hash=13d2178caeb550cb5670f3d73291bad9ed83b2fa)	ST 333-77	ST 357-77
1978	ST 330-78     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi115.photobucket.com%2Falbums%2Fn314%2FLiv42dayOK%2FCW%2F78Service1.jpg&hash=170b52c571c1232bff5cf9ed5855f64e76100470)	ST 333-78	ST 357-78
1979	ST 330-79     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi115.photobucket.com%2Falbums%2Fn314%2FLiv42dayOK%2FCW%2F79Service1.jpg&hash=8d2931a6e3eceb80bcc7d39b21845b3edb97cbe1)	ST 333-79	ST 357-79
1980	ST 330-80     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-80.jpg&hash=3fa0c4b6e026ef984fa6ef8362be7e8ba2445f2d)	ST 333-80	ST 357-80
1981	ST 330-81     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-81.jpg&hash=84ec24e717033a67c7129d97a39f5196dd1ba25b)	ST 333-81	ST 357-81
1982	ST 330-82     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-82.jpg&hash=48f763fbdf1fbd40351e0c2fed62328ca16ab56f)	ST 333-82	ST 357-82
1983	ST 330-83     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-83.jpg&hash=480ece47ff18bf9c32686068fed16613d21620bf)	ST 333-83	ST 357-83
1984	ST 330-84     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-84Vol1.jpg&hash=88f03f881a8ed9d6190710c18b4d5c8d8f8533ef)	ST 333-84	ST 357-84
1985	ST 330-85     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-85a.jpg&hash=3708ffbe6a075d2eea2d4c3133139d5157d8a346)	ST 333-85	ST 357-85
1986	ST 330-86     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-86.jpg&hash=6962f4d1a48f37fe9870e20b46e6b5c155472b9f)	ST 333-86	ST 357-86
1987	ST 330-87     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-87a.jpg&hash=c1a606b52e718f48a6a97065a91d506d0484c9f3)	ST 333-87	ST 357-87
1988	ST 330-88     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-88.jpg&hash=b8bab35e37f31abbfc5fbdea296174a55bd61506)	ST 333-88     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-88U.jpg&hash=bc87b03e7d997bea98cc79f47179e6581f1ebb3e)	ST 330-88 WD     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-88WD.jpg&hash=086729ca9c43e22f31593d8b7749f45bec3bc6e7)
1989	ST 330-89     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-89.jpg&hash=224aece7b024185218e66458e5ebaccdb1f32f4d)	ST 333-89	ST 350-89 EDD     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-89EDD.jpg&hash=f3edbc3b904ea80452780ce51f3efcd93e68088d)
1990	ST 330-90     (First year of TBI)     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-90.jpg&hash=64f358f52d6f6e0cffa9c50bd5f4b8370c18daf4)            ST 502-90SB Supplement	ST 333-90	ST 350-90 EDD     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-90EDD.jpg&hash=ac26fa6bfb7de56190321641dec95291ebc3284f)
1991	ST 330-91     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-91.jpg&hash=0fa82842b2f83cfc179a5eed1da05b5ec3cc6693)            ST 502-91SB Supplement	ST 333-91	ST 350-91 EDD     (https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi286.photobucket.com%2Falbums%2Fll120%2FBaileyDave%2FWinnebago%2FChevy%2FST330-91EDD.jpg&hash=97c8f37305e88bbb2500b8a56a08d01c12f06067)

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Dave yes it is confusing on P30 manuals . my 1987 P30 came with a Chevrolet (4)  manual set
ST- 330 -87    198710-30 Light Duty Truck  Service manual
ST-333-87      1987 Light Duty Truck  Unit repair manual   
ST-376-87       1987 Light Duty Truck Fuel Drivability and Emissions Service Manual
ST-350-87        1987 Light Duty Truck Wireing Diagram Booklet

They sure don't make it easy or cheap Glad I didn't have to buy them
Luckely I havent had to use them much yet either

Sea Hag



(https://www.classicwinnebagos.com/forum/proxy.php?request=http%3A%2F%2Fi115.photobucket.com%2Falbums%2Fn314%2FLiv42dayOK%2FCW%2FAttachments%2FSea%2520Hag%2FP3manuals.jpg&hash=085392ee156e9d224bc328a5a8b20b0cba42f1b1)

Both confusing and expensive depending on year.  Thanks for posting that info.  The ST 376 manual came into existance due to emession controls.  Not sure what year they moved the wiring diagrams to a seperate book and I suspect P/N format of the elecrical book changes over the years.

Dave

I believe some of the confusion of which manuals you need are in the VIN # Code

The 5th digit  ( P) means forward control   
6th digit  (3) Means 1 ton chassis               
7th  (?) means  body code
When I ordered parts I told the GM truck dealer it was a P3   I didn't use the 0 or say p30 that would = (P)= forward control (3)=1 ton
(0)=pickup/delivery van .

The body Type code for motor homes is (7)   or P37
The 10-30 light duty truck manuals covers all body Types and chassis for code(1) 1/2 Ton , Code (2)3/4 Ton ,and Code (3) 1 Ton
These are the correct manuals for Motor homes   

I believe the P3 is the short version when speaking about MH chassis or a least that's what I call it Hope that helps and doesn't confuse anyone further 
Sea Hag

Enter into EBAY search field:
(1990,90) (Chevy,GMC) (p,p30,p32,p42) (service,unit,supplement,electrical) manual
to get http://www.ebay.com/sch/i.html?_odkw=%281990%2C90%29%20%28Chevy%2CGMC%29%20%28p%2Cp30%2Cp32%2Cp42%29%20%28service%2Cunit%2Csupplement%29%20manual&_osacat=0&_nkw=%281990%2C90%29+%28Chevy%2CGMC%29+%28p%2Cp30%2Cp32%2Cp42%29+%28service%2Cunit%2Csupplement%2Celectrical%29+manual&_sacat=0&_sop=15&_trksid=m194&ssPageName=STRK:MEFSRCHX:SRCH (http://www.ebay.com/sch/i.html?_odkw=%281990%2C90%29%20%28Chevy%2CGMC%29%20%28p%2Cp30%2Cp32%2Cp42%29%20%28service%2Cunit%2Csupplement%29%20manual&_osacat=0&_nkw=%281990%2C90%29+%28Chevy%2CGMC%29+%28p%2Cp30%2Cp32%2Cp42%29+%28service%2Cunit%2Csupplement%2Celectrical%29+manual&_sacat=0&_sop=15&_trksid=m194&ssPageName=STRK:MEFSRCHX:SRCH)

Replace (1990,90) with the year you are interested in

You can order new manuals from Helm: http://www.helminc.com/helm/homepage.asp?r=http://www.google.com/search?hl=en&source=hp&q=helminc&aq=f&aqi=g2&aql=&oq= (http://www.helminc.com/helm/homepage.asp?r=http://www.google.com/search?hl=en&source=hp&q=helminc&aq=f&aqi=g2&aql=&oq=)


You can get used manuals or scanned CD's from
Faxon: http://www.faxonautoliterature.com/Service-Manuals/Chevrolet/P30-Van (http://www.faxonautoliterature.com/Service-Manuals/Chevrolet/P30-Van)

Dave