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FORD BRONCO
-> FRAME & MOUNTING; roll bars & cages, rivets, body mount...
-> Frame Strength, Bronco, F-Series, F-Super Duty Chassis Cab
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WELCOME to MIESK5's BIG BRONCO LINKS - We now have over 26,000 LINKs!
This is a Ford Bronco, Truck & Van Technical & Parts LINKS site developed by the MIESK5 Family & is not affiliated with the Ford Motor Co. in any manner.
Although we initially developed this site for 78-96 Big Broncos, information in many Links also applies to F, E Series & Cars. UPDATE; all Links via web.archive may be down; Copy orig. URL & go to http://replay.waybackmachine.org/ to search for the new archived copy
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"...If you look closely at the crumple zone you'll see that it is only spot welded at the tops of the ripples..."
Source: by Biggie_truck at FSB
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Frame Strength & Dimensions in 80-96; "...This got me thinking and I just found my Standard Catalog of 4x4s book. It has info on every model year domestic 4x4. It doesn't really specifically talk about frame differences from year to year, but it does have a Chassis Features section for each Bronco year. Here's what it has:
(1980-1985) Separate body and frame, box-section welded frame. 3.95 in. section modulus
(1986) Separate body and frame, single channel, 5 cross members, welded frame. 3.66 in. section modulus. Maximum side rail section: 6.95 x 2.12 x 0.170 in.
(1987-1989) Separate body and frame, single channel, 5 cross members, welded frame, 36,000 psi steel. 4.27 in. section modulus. Maximum side rail section: 7.01 x 2.12 x 0.202 in.
(1990-1992) same as 87-89 but also notes low carbon steel
(1993-1996) Separate body and frame, single channel, 5 cross members, welded frame, 3.66 in. section modulus. Maximum side rail section: 6.95 x 2.12 x 0.170 in. low carbon steel..."
Source: by BurntOrange at FSB
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Frame Strength, 96 F-Series, F-Super Duty Chassis Cab and Bronco all use a 36,000 psi steel frame. from 1996 F-150, F-250, F-350, F-Super Duty Chassis Cab and Bronco Workshop Manual; The F-Series and Bronco frames are made of all steel channel with replaceable steel crossmembers..." read more
Source: by Ford via miesk5 at FSB
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Frame Strength, Bronco, F-Series, F-Super Duty Chassis Cab all use a 36,000 psi steel frame.
Source: by Ford via Steve83 (Steve, That dirty old truck) at SuperMotors
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Swiss-Cheese Frame pic; "...'80-81 Broncos only..."
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net
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Swiss-Cheese Frame ; the very early 80's broncos have the gay swiss cheese frames with the huge holes in the end. if you were doing a leaf sprung swap, i can't imagine how you would realistically do it safely...AFAIK, the 80-82 (not sure on the year that they stopped this) had the swiss cheese frames; they are called that because there are large (like 2" or bigger if my memory serves me) holes drilled in the frame rail ends. they were to make it "lighter and more fuel efficient." also, the only place i know of where the frame was boxed was right around the engine crossmember and where the steering box attaches. i think that the 83-91 have the better frames because the 80-82 are the swiss cheese and the 92+ have the crumple zones..."
Source: by Andrew K (Andy351, das panzer, sloppy seconds, the magic carpet) at FSB
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Welding Manual, Haynes
Source: by Haynes via truckporn.com
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