im wondering about the diffrence in ibeams .looking on ebay at lowering ibeams by djm the price diffrence is crazy .so whats the diffrence the first one i looked at said they were for 65-79 for $600 and the next set was for 75 -79 but the price was $200 less what could the diffrence be and which should i get for my 66 the disc breaks i got are from a 74 f100 does that make a diffrence or not . are the i beams the same from 65 to 79 and whats the diffrence in the ones from 75-79

thanx paul

 

My donor was a 74, my DJM beams where for the 1965. The DJM do include a left and right beam. Factory beams are the same side to side. DJM tilts the king pins back towards the cab just a bit. I used the 74 spindles on the 65 DJM beams. I got my kit from Summit Racing. DJM was a dream to deal with when I ran into an issue. Kit had two driver side beams. They shipped the passenger side and arranged pick up of the extra driver side beam. The rear kist is still sitting in the box in the bed. This Winter the bed comes off and the rear drop, rear end swap, and rear tank conversion go in.

Truck is still up on dollies, so I can't speak for ride/handleing etc.. I hope to get the truck on the road by spring. Check out my gallery, there are before and after pictures.

 

Not sure what the difference is in them i have a set of 72 with disc brakes on them and power steering set up that i am putting on my 66

 

Your best bet is to contact the manufacturer with this question. They are the true experts on their products.

 

Do any of you know if the question originally posted was ever answered? Thanks

 

nobody ever did answer the question i posted i never did figuer it out

 

I don't know diddly-squat about dropped I-beams. Maybe the following info will be of some help, as these are the "as original" applications.

C6TZ3006C .. Right I-Beam / C6TZ3007C .. Left I-Beam (C6TZ3006/7C replaced C5TZ3006/7A).

Fits: 1965/70 F100 & 1971 F100 before serial number M00,001.
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D2TZ3006C .. Right I-Beam & D2TZ3007C .. Left I-Beam.

Fits: 1971 F100 from serial number M00,001 & 1972/74 F100.
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D8TZ3006B .. Right I-Beam & D8TZ3007B .. Left I-Beam (D8TZ3006/7B replaced D5TZ3006/7A).

Fits: 1975/79 F100/150.
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C5TZ3B177A .. I-Beam Pivot Bushings / 5/8" I.D. / 2 1/4" O.D. / Right/Left is the same.

Fits: 1965/74 F100 / 1975/79 F100/150.

Note: These I-Beams (and bushings) were also used on some 1965/79 F250's (depends on the GVW), and 1965/74 E100/200's.

 

I called the manufacturer DJM and they said the I beams they sell are the same from 1965 to 1979, he said the difference is in the rear shackle kit as the fit is different. I have a 78 front suspension in my 66 with the stock rear springs so I called to make sure I was getting the right stuff the first time and I suggest anyone who wants to do it right do the same, DJM recommended I buy them from Summit Racing which was a welcome tip as they sold them cheaper than DJM's price and Summit had only $11.95 shipping to my door. Here's why I had to change to DJM I Beams.