tonight i got a couple of my buddies to help set my bed on and i couldnt belive it wouldnt fit,,i didnt know there was a difference in the beds,,but there were 2 metal brakets on the front side and rear of the hump in the frame ,,i had to cut them off with a sawzall does any one know why this is,,,the bed i put on was from an 89 d150 ,,,i have no clue myself..

 

Had same thing happen
Bought from a yard - assured me that it would fit
I did the sawall number
Shimmed with washers where necessary and bolted it down
No worries

 

The bed was from a half ton truck with the slightly different frame which requires the spacers to fit properly.

 

This is good information...thank you for posting it up. I have a newer truck bed to put on my D350 crewcab and just assumed, as you did, that it would be a direct drop and bolt.

Do you have any pics of the offending brackets?

 

from what I have seen only the 1/2 ton bed's have the bracket's that need to be cut off All 3 bed's I have don't have them

 

In 1989 they slightly changed the frame and thus the bed on all trucks regardless of weight rating or legnth.

http://ramchargercentral.com/vehicle...31/#msg1720031


pics are here
http://ramchargercentral.com/mopar-trucks/93-w150/

 

They aren't limited to just the 1/2-ton truck's beds. The '89-'90 dually bed I bought had them as well. It's the differences in the frame hump over the axle. Some frames are completely flat and others have another small hump in the middle. Both my '90 and '91.5 trucks have that frame. I had to cut the brackets/spacers off of the bed in order for it to sit right on my '90.