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Old 06-21-2017, 05:12 PM   #21
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Oh, Dave, you forgot the biggest reason: It says $MB on it!!!!


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Old 06-21-2017, 05:50 PM   #22
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Oh, Dave, you forgot the biggest reason: It says $MB on it!!!!

Err, there's that
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Old 06-21-2017, 07:32 PM   #23
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This discussion brings up a question I've had in my mind for a while. The SMB 4X4 setup has a reputation for being strong under a maximum weighted Van. DaveB mentioned 10,500lbs. I'm currently just under 10K lbs. What are the other 4x4 conversions maximum weight capability, or are they all the same at maximum GVW of the E350.
The one that I'm most curious about is the Agile TTB set up. Is anyone on the forum with a diesel at 10K lbs and an Agile TTB. I'm just curious as coming from a lot of IFS small trucks the idea of IFS Van is enticing. Although I in no way have the money to change at this point.

-Eric
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Old 06-21-2017, 11:02 PM   #24
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The original question was about the Agile RIP modification, which is specifically for the Quigley coil spring setup. My experience with Agile was somewhat different, since it was on a SMB E350 conversion done in 2016 in which leaf springs were installed front and back with Fox shocks; the van is ~10,100 lbs. The back end felt like it hit a hard stop on bumps, a bit of a harsh ride. On inspection, the rear leaf springs were in reverse arch, looking like they were overloaded; most of the lift was achieved by blocks.

The good folks at Agile replaced the rear springs with custom ones, adding an extra leaf and increasing the arch to where it provided most of the lift. It made a great difference in how it rides: the suspension is much more responsive. An added bonus is that the extra lift got rid of the infamous rear end Sportsmobile Sag!

Double thumbs up for John B at Agile.
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Old 06-22-2017, 08:22 AM   #25
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FWIW - the real problem with OEM springs is heavy builds engage the lower overload leafs which are rated for ~800 lbs/inch, so that's why heavy vans with factory springs ride like dump trucks. The aftermarket springs all replace the lower overload with more softer leafs instead. You can DIY your own rear leads too using junkyard takeoffs. My extra leafs are from a f250
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Old 06-22-2017, 05:19 PM   #26
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Quote:
Originally Posted by ShuttlePilot View Post
This discussion brings up a question I've had in my mind for a while. The SMB 4X4 setup has a reputation for being strong under a maximum weighted Van. DaveB mentioned 10,500lbs. I'm currently just under 10K lbs. What are the other 4x4 conversions maximum weight capability, or are they all the same at maximum GVW of the E350.
The one that I'm most curious about is the Agile TTB set up. Is anyone on the forum with a diesel at 10K lbs and an Agile TTB. I'm just curious as coming from a lot of IFS small trucks the idea of IFS Van is enticing. Although I in no way have the money to change at this point.

-Eric
They have done some pretty heavy builds. The one that comes to mind is Slacker's Ambo build, a really heavy, bigger ambulance with a 7.3l. I think I remember that it was 12k or more. I can't remember his numbers but I did see it and it sat right and looked great. I did have time to go for a ride in it.
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Old 06-22-2017, 06:30 PM   #27
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Thank you 86Scotty for the follow up. I wasn't aware Slacker's Ambo was an Agile TTB front axle. That is a great demonstration of the capability and reliability of that conversion type. Sorry for the slight hijack of the original question.

-Eric
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Old 06-22-2017, 07:10 PM   #28
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Huh. I typed up a response about heavy Agile vehicles but apparently it got lost in the ether when I hit post.

Oh well. But yeah, they've done tons of diesels. Including Ray aka 1ders.
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