Fuel filler neck and hose

[Jason S]

When I swapped beds to the fuel filler door type (I believe they were '81 beds with '73/'74 tanks) on my '73 and '74 GMC/Chevy trucks I used the following GM part numbers for the hoses:
(For the parts I used, the invoice date is 02/21/01)

Qty     Part number
  2          14000286
  1          14036751
  1          14036752

These numbers do still show up in the parts systems, but they seem to be discontinued from GM. The number seems to  be correct for the earlier smaller hose applications. This is for a dual fuel tank setup.  I believe 14000286 is for the main fuel hose on either side and 14036751/2 is for the vent hose, I would have to research to verify which side is which number. I think that 751 is Left and 752 is Right, but not cannot be sure.   

[rdnether]

After a lot of digging, and ordering a few wrong parts, I found a combination that worked on my truck.  Thought I would post what I found here to save someone else the trouble. 

32-3300 filler hose for 73-74, 1 3/8" ID, 90 deg bend, 15" long
32-3302 filler hose for 75-78 1 3/8" ID, 90 deg bend, 8.5" long
32-3304 filler hose for 79-81 1 3/8" ID on tank end, 1 3/4" ID on filler neck end, 90 deg bend, 8.5" long
32-3307 filler hose for 82-87 Passenger side tank, 1 3/4" ID, 45 deg bend, 5" long

32-3360 filler neck for 73-78, fits 1 3/8" ID filler hose, 5/8" ID vent, no flap inside the neck, 10" long
32-3364 filler neck for 79-83, fits 1 3/4" ID filler hose, 5/8" ID vent, 7" long
32-3365 filler neck for 84-87, fits 1 3/4" ID filler hose, 5/8" ID vent, 8" long

From what I have found, the bed on my 78 is from 84-87.  I used filler neck 32-3365 and hose 32-3302. If fit perfectly, didn't even have to trim the hose.

[rdnether]

Pics of the filler hoses

[rdnether]

Pics of the filler necks