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Under-Carriage Detail & Engineering Philosophy

2:24
35:14
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At 2:24 in

Inside Detroit Speed: Making Muscle Car Suspension Parts & World Class Custom Builds!

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What happens here

A detailed look under a 1970 Chevelle reveals a universal 4-link rear suspension system, featuring JRi coil-overs and a Ford 9-inch rear end. The discussion highlights the combination of scratch-built and off-the-shelf components, all designed to handle high horsepower. Custom stainless steel lines are shown, meticulously routed within pockets in the floorboard to prevent snagging and maintain ground clearance, a testament to the detailed work and engineering in these custom builds. The build requires approximately 3,000 hours of labor on average, with more complex projects taking even longer.

Goal: Examine the custom suspension and component integration.

Tools and materials

  • Ford 9-inch Rear End Ford — A durable and strong rear axle assembly commonly used in high-performance applications
  • JRi Coil-overs JRi — Providing adjustable dampening and spring rates for optimized handling
  • Stainless Steel Lines — Custom brake and fuel lines, routed for protection and aesthetics

What they say

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projects like you said a 70 chevelle here falls working on so it's got our universal pouring pieces in the bag a lot of stuff kind of modified to work it's kind of a combination of scratch built parts and off the shelf parts to give us the the whole quarter link assembly and then of course the jri coilovers most everything we build on this side over here ends up with a ford nine inch you know everybody wants big powers that pretty much is the axle of choice so again instead of doing our bolt-on front suspension we cut the frame off and clipped this whole frame assembly in here so it gets you better geometry gets you the you know the late model style forged aluminum upright and that's your own part too yep so we have this forged they come in as a blank and we machine them in the machine shop which you'll see back in production here shortly so yeah that's totally completely our part it's based off of corvette style hub pack corvette brake mounting you know your your brake options for that assembly are basically everything under the sun and check out the assembly shop some of the detail on this stuff is just ridiculous yeah so a lot of that stuff you see you know a lot of sheet metal parts and everything it's just totally one-off hand fabricated [Music] this used to be uh what i'm pretty sure was the old mb2 nascar shop with the the 36 eminem's skittles car in the late 90s what's going on in here so this is the assembly side of the shop and then of course the body shop down at that end so got cars in various stages over here this one is fresh out of the body shop jason's just now getting going on wiring

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