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Old 08-02-2020, 02:56 PM   #1
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TTB Questions

I found someone selling a 93 F250 frame with all running gear here locally for $500 but noticed it has leaf springs in the front. Did they all come with leaf springs? Is it possible to switch this to a coil spring setup?
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Old 08-02-2020, 06:32 PM   #2
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Dana 50 ttb had 8 on 6.5" hubs and all came with leaf springs from the factory. Dana 44 ttb were 5 on 5.5" and used coils/radius arms.

...but yes, it's common to weld new (custom) brackets to the d50 beams to convert them to coil, that's what Agile and a few others have been doing for years.
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Old 08-02-2020, 06:39 PM   #3
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I am pretty sure all the F250 HD TTB's were leaf. The conversions for the vans add perches for the coils.
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Old 08-05-2020, 04:56 AM   #4
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Thanks. So is it common to use the radius arms from an F350, the radius arms from the van or fabricate new radius arms?
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Old 08-05-2020, 08:39 AM   #5
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Thanks. So is it common to use the radius arms from an F350, the radius arms from the van or fabricate new radius arms?
The TTB D50 F250 didn't have radius arms. I would advise against using the F150 D44 under a van. The newer SuperDuty radius arms won't work with the travel-path of the TTB (since it effectively travels in an arc, vs the mostly linear path of a solid axle). Best bet is modifying E-series arms to fit.

What do you want to accomplish, and what year/make/model/motor are you trying to stuff it other. I really like the TTB setups when they're done right, but doing it right isn't easy, and there's some trade-offs. Ramsey (Agile) used the TTB D50's as-in by adding perches and brackets, but QuadVan built them spec using longer axle shafts and moving the axle brackets to widen the track to match the original E-series track width. Both of them installed camber kits. Another reason to reconsider is the smaller brakes on them, compared to stock modern vans and 4x4s using the SuperDuty axles.
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Old 08-05-2020, 08:52 PM   #6
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Thanks man. All good info. I was wondering about track width. I think best bet for me is to look for something thats allready put together. I have a 2014 E150 but prob gonna end up selling it cause I think I'm getting tired of projects. Was really hoping to end up with a TTB setup but also really like the Timberline 4 link setup. My goal is to end up with a daily driver that's off road capable, able to haul cargo, but still be nice enough inside to road trip and/or camp overnite in with an air mattress. Also might be pulling a trailer with one or two motorcycles and gear.
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Old 08-05-2020, 08:56 PM   #7
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And duh. My bad on the F350 radius arms. As the other guys were saying the F350 had leaf springs.
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Old 08-05-2020, 09:04 PM   #8
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How cool is it that you folks even know how to do ANY of that! I am always amazed at the talent on here!
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Old 08-06-2020, 05:27 AM   #9
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How cool is it that you folks even know how to do ANY of that! I am always amazed at the talent on here!
Word!

There certainly is a nice collection of talent and knowledge here, the cross section of current and previous experiences in different trades and such all converging in one small spot!
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