Give the shackle
a separate body mounting.
The rear mounting now has a detachable three-screw bracket, paired cheeks and an open transverse sleeve, four flanged bush halves per side, a plate with two pins, a separate closing plate and retainer envelopes. Thin wheelhouses and formed reinforcement references add surrounding body geometry.
What the evidence changes
Factory rear spring fixings, PDF p. 150, distinguishes AHA7201 rear mounting with three body screws per bracket, AHA7686 plate with pins, AHA7687 closing plate and eight AHA7182 bush halves per car. The supplier’s own AHA7201 photograph shows paired triangular cheeks and a transverse sleeve. These sources correct the old solid mounting block; they do not identify the hardware currently fitted.
British Motor Heritage’s rear body drawing and applications separately list BMH8014/15 inner wheelhouses and AHA7240/41 wheelhouse-to-floor reinforcements. CZJ568 boot/cockpit floor and CZJ602 rear underframe are the rubber-bumper comparisons. Earlier complete body assemblies and round-arch alternatives are not imposed on this car.
Keep the body, bracket and joint distinct
The local doubler and open side returns stay with the body. The bracket is separate and can move illustratively. Its three bores share centers with the doubler and low boot-floor panel. This six-hole map is construction geometry, without a surveyed hole pattern, captive-nut arrangement or cutting template.
| Reference relationship | Basis and limit |
|---|---|
| Upper / lower eye axes | Retained at X magnitude .48, upper Y .43/Z -1.90, lower Y .33/Z -1.86 body units. These were drawing choices, not loaded owner measurements. |
| Bracket / body stack | Estimated 3 mm bracket and 3 mm local doubler meet the existing 1.2 mm boot-floor skin reference. Every fold, bore and attachment remains unverified. |
| Bushes and plates | Four separate flanged halves per side. Estimated 10 mm pin shoulders, 10.2 mm bush bores, 10.6 mm closing-plate bores, 4 mm plates and 3 mm bush flanges. Spacing changes to this declared stack; compression and fitted dimensions are unknown. |
| Thread comparison | Supplier GHF202 3/8 UNF nut listing is a nominal terminal comparison only. It does not prove pin shoulder diameter, actual thread engagement or fitted identity. |
| Inner wheelhouse | Retains .37-unit radius and .47/.74 X boundaries. The former membranes become estimated 1.5 mm solid sections, with explicit static reliefs. |
The previous 20.32 mm pin envelopes are replaced by estimated 10 mm shoulders. Front spring bushes, leaf/eye profiles, axle, damper and strap stations remain at their existing reference coordinates. Retainer rings omit actual thread and locking action; the displayed plate side assignment is not a verified fitted orientation.
Surrounding obstacles and open boundaries
The inner wheelhouse has a declared 34 mm-radius lower relief around the existing 32 mm-radius axle tube. A separate relief follows the retained damper body box plus 2 mm total across each dimension. Neither is a discovered factory opening, a fitted clearance or a suspension-travel envelope. Reinforcement sections follow the retained arch without a verified seam or continuous load path into the rest of the rear frame.
Owner IMG_6329 and IMG_6341 establish side/cabin context but hide the rear brackets and inner sections. IMG_6919 shows front underside context and cannot supply a rear mounting survey. No direct owner dimension is applied and no repeat capture is requested.
Separate formed damper/upper-strap panels, fixing envelopes and bumper beams now replace the old pads and pins. The factory lists AHH9158 bump rubber, but the current evidence does not locate its fitted attachment and strike surface. It is not placed by guesswork. Continuous rear-frame geometry, actual reinforcement seams and fitted upper-strap/damper retention still need reconciliation. Two narrow rear-open construction reliefs in the local floor doublers now accommodate retained low bumper-stud axes; these are not factory openings or a repair template.
Use the study for inspection rehearsal
Inspect the body/doubler, detachable bracket, upper bush pair, pin plate, closing plate and lower spring eye as separate interfaces. Keep the wheelhouse and body references visible to consider obstacles. The bracket, bushes, plates, bolts and retainers separate for visibility, without demonstrating a safe release sequence or extraction route.
Source checks establish valid solids, open shared body/eye passages and correspondence with the static axle reference. They do not establish body strength, load support, spring restraint, joint tightening, rubber compression, suspension articulation, brake-hose/cable/exhaust travel or a verified repair procedure.
Native exports
Eighteen source groups include thin wheelhouses, arch reinforcements, local doublers, brackets, body fixings, bush halves, pin and closing plates, and retainers. Other native assets remain unchanged. Browser checks cover shared bores and pin occupancy, body-frame placement, selection, isolation and inspection ownership.