73-87chevytrucks.com

Technical Forum (Read Only) => Accessories and Body Tech => Topic started by: Captkaos on October 27, 2013, 03:16:05 PM

Title: Vent Window Identification
Post by: Captkaos on October 27, 2013, 03:16:05 PM
There are 3 basic vent window offerings for the 73-91 trucks.  Links provide to get you to these in our online catalog.
1973 - 1980 - non-locking latch with a large glass that ends with a point.  These use a 2 piece gasket (visit our store here for 73-80 gasket (http://store.73-87chevytrucks.com/merchant2/merchant.mvc?Screen=PROD&Store_Code=7&Product_Code=VWK-1110-73&Category_Code=WTHR)) and mount to the door with 2 bolts at the a-pillar

1981-1985 - locking latch with a smaller glass that ends in a curve at the top.  These use a 2 piece gasket (visit our store here for 81-85 gasket (http://store.73-87chevytrucks.com/merchant2/merchant.mvc?Screen=PROD&Store_Code=7&Product_Code=VWK-1110-81A&Category_Code=WTHR)) and mount to the door with 2 bolts at the a-pillar also.

1986-1991- Locking latch with smaller glass that ends in a curve at the top.  These use a 1 piece gasket (visit our store here for 85-91 gasket (http://store.73-87chevytrucks.com/merchant2/merchant.mvc?Screen=PROD&Store_Code=7&Product_Code=VWK-1110-81&Category_Code=WTHR)), and mount to the door with only 1 bolt at the a-pillar.

Here are the pictures for identifying them.

Note the differences in the 81-85 (bottom) and the 73-80 (top) glass:
(http://www.73-87chevytrucks.com/techinfo/vent_window/ventdiff_8.jpg)

Close up of 81-85:
(http://www.73-87chevytrucks.com/techinfo/vent_window/ventdiff_6.jpg)

73-80:
(http://www.73-87chevytrucks.com/techinfo/vent_window/ventdiff_7.jpg)

Note differences in the 81-91 locking latch (top) and the non locking 73-80 (bottom)
(http://www.73-87chevytrucks.com/techinfo/vent_window/ventdiff_5.jpg)

Note the differences in the top mounting boss from top 85-91 (top) to the 81-85 (middle) with hole, and the 73-80 with hole (has a bolt in it so I won't loose it)
Note the top vertical hole pad does not guarantee the vent version as they can be drilled to fit the earlier version with the hole.
(http://www.73-87chevytrucks.com/techinfo/vent_window/ventdiff_3.jpg)

Note the differences in the glass channel opening: the 81-85 (middle) has slots in it for the division bar seal compared to the 85-91 (top)
This is the most accurate way to identify the 85-91 1 piece vs 81-85 2 piece version.
(http://www.73-87chevytrucks.com/techinfo/vent_window/ventdiff_9.jpg)

From top to bottom 85-91, 73-80 and 81-85 inside view (81-85 is missing the latch handle)
(http://www.73-87chevytrucks.com/techinfo/vent_window/ventdiff_1.jpg)

From top to bottom 85-91, 73-80 and 81-85 outside view (81-85 is missing the latch handle)
(http://www.73-87chevytrucks.com/techinfo/vent_window/ventdiff_1.jpg)