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Jeep Wrangler TJ Bushing, Frame Hole & Bolt Diameter Sketch (.388/.390/.475")

Dimensioned whiteboard sketch of a bushing, bolt, and frame bore showing diameters of 0.390, 0.388, and 0.475 inches.

AI caption · Photo 108 of 1023

This is a photograph of a hand-drawn whiteboard sketch (not a formal blueprint) filed with a 2001 Jeep Wrangler gallery. It documents dimensional measurements for a bushing-to-frame-to-bolt fit-up, apparently to explain slop or to spec a repair sleeve. Three parts are sketched: a cylindrical BUSHING with an inner bore called out as Ø .390", a FRAME bracket cross-section with its bolt hole called out as Ø .475", and a BOLT whose threaded shank is called out as Ø .388". A fourth drawing at the bottom shows a face view of a sleeve/washer-like part with a .125" wall/flange dimension, an inner diameter of Ø .388" and an outer diameter of Ø .475" — i.e., a sleeve sized to fill the gap between the .388" bolt and the .475" frame hole. Partial words are visible along the left edge of the whiteboard (ending in "SKT.", "KET", "ENCH"), likely a cut-off tool or parts list. No vehicle year, model, part numbers, or torque values appear in the image itself; a reader learns only the measured diameters and the implied need for a reducer sleeve or bushing between bolt and frame hole.

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Frequently asked questions

What is the inner diameter of the bushing shown in this sketch?
The bushing bore is called out as Ø .390 inches.
What size is the hole in the frame according to this drawing?
The frame hole is dimensioned at Ø .475 inches.
What is the diameter of the bolt in the sketch?
The bolt shank is labeled Ø .388 inches.
What are the dimensions of the sleeve/washer part drawn at the bottom?
It shows a .125" wall/flange dimension, an inner diameter of Ø .388", and an outer diameter of Ø .475".
Why do the bolt and frame hole sizes matter here?
The sketch shows a .388" bolt passing through a .475" frame hole, and a part with .388" ID and .475" OD — implying a sleeve is needed to take up the roughly .087" of clearance.

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