Gary Lewis Posted November 6, 2018 Share Posted November 6, 2018 As you probably know, I'm designing a rear bumper for my '85, and it'll have tow eyes, a receiver for a trailer hitch, and a spare tire carrier. But I'm wanting to make this a generic item that will fit all Bullnose trucks. Toward that end I measured Dad's truck and compared the measurements to those on Big Blue. And I found things pretty close, as shown below, but I would like your help in making sure these measurements are correct. Here are my questions: Are the holes in side of your truck's rear frame, the ones for the bumper, in the same place when measuring from the rear and the top of the frame. (It appears to me that the bed, and therefore the top of the frame, is the reference point.) Do you have holes in the bottom of the frame? If so, where are they located when measuring from the rear of the frame? (I'd assumed that the holes in Big Blue were factory holes, but since the ones in Dad's frame aren't even close to those in Big Blue, I'm starting to think they were both drilled to accept a hitch.) Any and all help would be appreciated! Link to comment Share on other sites More sharing options...
ScubaSteve Posted November 6, 2018 Share Posted November 6, 2018 When I installed the hitch on my 86 I had to drill at least two holes maybe 4 can’t nt really remember. I will take some measurements for you, but I will not be near my truck till the weekend. Link to comment Share on other sites More sharing options...
Gary Lewis Posted November 6, 2018 Author Share Posted November 6, 2018 When I installed the hitch on my 86 I had to drill at least two holes maybe 4 can’t nt really remember. I will take some measurements for you, but I will not be near my truck till the weekend. I will still need the help come the weekend. Thanks! Link to comment Share on other sites More sharing options...
85lebaront2 Posted November 8, 2018 Share Posted November 8, 2018 I will still need the help come the weekend. Thanks! I'm not sure Darth's will help, but will be glad to measure, the rear bumper and V5 hitch were on there when I bought him in 1994. Link to comment Share on other sites More sharing options...
Gary Lewis Posted November 8, 2018 Author Share Posted November 8, 2018 I'm not sure Darth's will help, but will be glad to measure, the rear bumper and V5 hitch were on there when I bought him in 1994. I would love to get input on all the different frames. Thanks. Link to comment Share on other sites More sharing options...
85lebaront2 Posted November 8, 2018 Share Posted November 8, 2018 I would love to get input on all the different frames. Thanks. In your inbox sir Frame height was measured top to bottom outside the flanges. Link to comment Share on other sites More sharing options...
Steve83 Posted November 9, 2018 Share Posted November 9, 2018 But I'm wanting to make this a generic item that will fit all Bullnose trucks.At best, it'll fit F-series. Bronco rear frame horns are different, and their bumpers mount differently. These are factory Bronco bumper bracket bolts in their factory holes in my original '83 frame: https://supermotors.net/getfile/185274/thumbnail/bumperr-2l.jpg That bumper also fits the '93 frame it's on now, so all '80-96 Broncos have the same rear frame horns. https://supermotors.net/getfile/895898/thumbnail/frameb8081.jpg https://supermotors.net/getfile/910165/thumbnail/frame90bronco.jpg https://supermotors.net/getfile/922798/thumbnail/bumperr8096.jpg Link to comment Share on other sites More sharing options...
Gary Lewis Posted November 9, 2018 Author Share Posted November 9, 2018 But I'm wanting to make this a generic item that will fit all Bullnose trucks.At best, it'll fit F-series. Bronco rear frame horns are different, and their bumpers mount differently. These are factory Bronco bumper bracket bolts in their factory holes in my original '83 frame: https://supermotors.net/getfile/185274/thumbnail/bumperr-2l.jpg That bumper also fits the '93 frame it's on now, so all '80-96 Broncos have the same rear frame horns. https://supermotors.net/getfile/895898/thumbnail/frameb8081.jpg https://supermotors.net/getfile/910165/thumbnail/frame90bronco.jpg https://supermotors.net/getfile/922798/thumbnail/bumperr8096.jpg I hadn't thought about it, but you are right - Bronco's use the same bumpers but take a different bracket than the pickups. That certainly limits the trucks it'll fit. Link to comment Share on other sites More sharing options...
Rembrant Posted July 26, 2020 Share Posted July 26, 2020 I hadn't thought about it, but you are right - Bronco's use the same bumpers but take a different bracket than the pickups. That certainly limits the trucks it'll fit. Gary, Do you have any drawings that show the measurements of the truck frames? (like the one Steve83 posted above for the Bronco) Link to comment Share on other sites More sharing options...
Gary Lewis Posted July 26, 2020 Author Share Posted July 26, 2020 Gary, Do you have any drawings that show the measurements of the truck frames? (like the one Steve83 posted above for the Bronco) Jein. We have a document that appears to give any dimension you want, but it isn't quite like that one. It is the 1985 Body Builder's Book here: http://www.garysgaragemahal.com/1985-body-builders.html. See if it helps. Link to comment Share on other sites More sharing options...
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