Stealth Conversions, The Parts Division of JTR (Jaguars That Run)

Colorado, Pinion Alignment Shims
  (same as Axle Alignment shims)  

Stealth Conversions
The Parts Division of JTR (Jaguars That Run)

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Pinion Alignment Shims for Chevy Colorado 5-cylinder
S10 Truck, Pinion Alignment Shims

Pinion Alignment Shims (Axle Alignment Shims)

Axle alignment shims (also called pinion alignment shims), 2°,
#COL-303. $22

Axle alignment shims (also called pinion alignment shims), 3 °,
#COL-304. $23

Axle alignment shims (also called pinion alignment shims), 4 °,
#COL-305. $24

PINION ALIGNMENT SHIMS (also called Axle Alignment Shims)

The Stealth Conversions pinion alignment shim should be installed directly to the leaf spring with a socket head cap screw. 2° shims are part #S10-303. 3° shims are part #S10-304. 4 ° shims are part #S10-305

When installing the shim onto the leaf spring pack, hold the spring pack together with a pair of Vise Grips® or C-clamps before removing the original bolt.

If lowering blocks are used, the alignment shim should be installed on top of the lowering block. Stealth Conversions Lowering blocks are designed to allow bolting alignment shims on top of the lowering blocks.

S10 Truck, Pinion Alignment Shims adn Lowering Blocks

Pinion Alignment Shims and Lowering Blocks

PINION ALIGNMENT SHIMS AND LOWERING BLOCKS

Several companies make pinion alignment shims. Most are made of cast aluminum or zinc, and are too narrow to cover the entire width of the 2-1/2" wide leaf spring used on the S-10.

When the 2" wide aluminum shims are installed on the cast or extruded lowering blocks, the shims (or the lowering blocks) will fail because only a small portion is supported by the hollow lowering blocks.

When the shims (or lowering blocks) break, the U-bolts can appear to loosen.

Stealth Conversions alignment shims are 2-1/2" wide, and made out of high-strength solid aluminum, which will not fail in service.

When the shims are used on the cast or extruded lowering blocks, the center hole of the shim must be drilled out to 9/16. Some of the cast and extruded lowering blocks, however, do not have a pin height that is tall enough to protrude through the pinion alignment shim.

S10 Truck, Pinion Alignment Shims and lowering blocks

Pinion Alignment Shims and Lowering Blocks

PINION ALIGNMENT SHIMS AND LOWERING BLOCKS

The Stealth Conversions lowering blocks are unique in that the top of the block is threaded. This allows the pinion alignment shim to attach to the lowering block, while leaving the full height of the cap screw for the rear-axle locating hole.

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JTR engine swapping manuals are available directly from JTR Publishing,
As well as through a number of retailers, including:
Summit Racing (S-10: Part #JTR-S10; Jaguar: Part #JTR-JAG),
JEGS (S-10: Part #116549; TPI & TBI: Part #117942),
Steve Smith Autosports (S-10: Part #S212; TPI & TBI: Part #S195), and
Classic Motorbooks (S-10: Part #116549; TPI & TBI: Part #117942;
  Jaguar: Part #118438; Datsun Z: Part #115501; Volvo 200: Part #122587).


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