Body off frame on lift — frame-off restoration process
Process · Standards · Method
How we build.
Frame-Off Restoration LS Swap & Engine Paint & Body Start a Build →
01
Full Restoration
Frame-Off Restoration

Frame-off means exactly what it sounds like. The body comes off the frame. Everything is separated, stripped, and assessed before any work begins. There is no other way to know what you're actually dealing with.

Most vehicles that come to us for a frame-off have had previous repairs — some of them good, most of them not. Filler over rust. Paint over filler. Problems buried under problems. Taking the body off the frame is the only way to find them all.

From there, the frame gets stripped, cleaned, repaired where needed, and refinished before anything goes back on it. Axles, suspension, brakes, and drivetrain are addressed while the body is off — because that's when access is easiest and the work can be done correctly.

The body goes through its own process — rust repair, panel work, metal fabrication where needed — before it ever sees primer. Paint is the last thing that happens. Not the first.

1
Full Teardown & Assessment
Body separated from frame. Every component tagged, catalogued, and assessed. We document what we find before any work begins — no surprises mid-build.
2
Frame Strip & Repair
Frame stripped to bare metal. Rust addressed, cracks welded, weak points reinforced. Engine and transmission mounts inspected and replaced if needed. Frame refinished before anything goes back on it.
3
Chassis & Drivetrain
Axles, brakes, suspension, and steering addressed while the body is off. New components installed to spec. Everything tested before the body goes back on.
4
Body Metalwork
Rust cut out and replaced with new metal — no filler over structural problems. Panel straightening, patch panels, fabrication as needed. Body goes into primer only when the metal is right.
5
Reassembly, Paint & Finish
Body goes back on the frame. Mechanical systems connected, electrical wired, interior fitted. Paint is the last stage — applied to a vehicle that's already complete underneath.
6
Road Test & Delivery
Every build is driven before the customer sees it. Not around the block — driven. If something isn't right, it gets fixed before delivery. No exceptions.
Clean chassis underside — rebuilt suspension axles brakes
Chassis · Rebuilt
New axles · Suspension · Brakes — done before the body goes back on
Body off frame on lift — F-100 teardown
Frame-Off · F-100
Body up, frame exposed — full access
Technician welding frame — sparks flying
Frame Repair
Welding while the body is off — the right way
02
Powertrain
LS Swap &
Engine Upgrade

The GM LS engine family is the most sensible modern powertrain choice for a classic restomod — reliable, powerful, well-supported, and serviceable anywhere in the country. But swapping one into a 50-year-old vehicle is not a parts-bin exercise.

Adding power to an aged platform changes everything downstream. Brakes that were adequate for the original engine are not adequate for an LS. Suspension geometry built for a lighter powertrain needs to be reconsidered. Wiring that was never designed to handle modern electronics needs to be replaced, not spliced.

We address all of it. An LS swap at CRG is not just an engine swap — it's a drivability conversion. The vehicle gets rebuilt around the new powertrain so that the driving experience matches the power being produced.

We also do original engine rebuilds for customers who want to keep the vehicle period-correct. The process is different, the goal is the same: an engine that runs right and will continue to run right.

1
Powertrain Assessment
We evaluate the existing drivetrain, determine what's being replaced or rebuilt, and identify all downstream systems that need to be updated to match the new power output.
2
Engine & Transmission
LS crate engine or rebuilt original. Transmission selected and built to match. All new mounts fabricated or sourced. Engine bay prepared before the engine goes in — not after.
3
Brakes, Suspension & Steering
Four-wheel disc brakes standard on LS builds. Suspension upgraded to match the power and the intended use of the vehicle. Steering addressed where needed.
4
Wiring & Electronics
New wiring harness routed and installed. Gauges updated to read the new engine. All electrical systems tested before the build is closed up.
5
Tune & Road Test
Engine tuned. Cooling system verified. Vehicle driven — real driving, not a parking lot roll. Any issues found and addressed before delivery.
Typically included in an LS build
  • LS crate engine or original engine rebuild
  • Performance transmission — rebuilt or replacement
  • Custom motor mounts — fabricated to fit
  • Four-wheel disc brake upgrade
  • Suspension refresh or upgrade
  • New wiring harness
  • Updated cooling system — radiator, hoses, thermostat
  • Fuel system — new tank, pump, and lines
  • Exhaust fabricated to fit
Rebuilt engine on stand — ready to drop in
Engine · Rebuilt
Built before it goes in — not troubleshot after
LS engine bay installed — Scout olive green
LS · Installed · Scout II
Clean engine bay — wiring routed, systems connected
Scout II finished — olive green bronze wheels
Delivered · Scout II
Same Scout — driven out under its own power
03
Exterior
Paint & Body

Paint is the last thing that happens. Every time. The reason most paint jobs fail — bubbling, cracking, adhesion loss — is that the substrate underneath wasn't right before the paint went on.

We do our own body work in-house. Metal first, primer second, paint last. Rust is cut out and replaced with new metal — we do not skim over structural problems with filler. Filler has a place in bodywork. Covering rust is not it.

Every vehicle gets a full panel-by-panel assessment before body work begins. We document existing damage, previous repairs, and structural concerns. Then we make a plan — and we stick to it.

Color selection, finish type, two-tone options, and custom work are all discussed with the customer before any paint goes on. We will tell you what will and won't work on a given vehicle honestly.

1
Strip & Assess
All trim and glass removed. Body stripped to bare metal or to sound existing paint. Every panel assessed — rust, previous repairs, high spots, low spots — all documented.
2
Metal Repair & Fabrication
Rust cut out to clean metal. New steel welded in. Panel straightening. Any custom fabrication — patch panels, custom pieces — done at this stage before primer.
3
Block & Prime
Body blocked flat. Seams sealed. Epoxy primer applied to seal the bare metal. Guide coat and block sand to find and fix any remaining lows or highs before color goes on.
4
Color & Clear
Color applied in a controlled environment. Multi-stage clear for durability and depth. Two-tone, custom colors, and period-correct finishes all handled in-house.
5
Cut, Buff & Reassemble
Paint cut and buffed to final finish. Trim, glass, and badges reinstalled. Final inspection before the vehicle is considered complete.
What a full paint job includes
  • Full strip — trim, glass, badges removed
  • Rust repair — cut and weld, not filler
  • Epoxy primer throughout
  • Block sand and guide coat
  • Color in controlled spray environment
  • Multi-stage urethane clear
  • Cut and buff to finished gloss
  • Trim and glass reinstalled
Truck body in white primer on stand
Body Work · In Primer
Metal right first — then primer
Bronco body shell metal work in progress
Metal Work
Body shell — every panel addressed before primer
Dodge Power Wagon before — rusty original front
Before · Dodge Power Wagon
As received — 60+ years of surface rust
Ford Bronco finished — black at sunset waterfront
After · Ford Bronco 1971
Gloss black — paint done last, on a vehicle that's already complete
Every build starts with
a conversation.
Tell us what you have and what you want it to be. We'll walk you through what's realistic, what it takes, and whether we're the right shop for the job.
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