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Southwest Fabrication
Caddo Mills, TexasQuality Custom Craftsmanship7am–3pm Central, Mon–Fri469-688-6985

Shop

Parts machined and laid up in Caddo Mills

Southwest Fabrication, 4540 FM1565, Caddo Mills, TX 75135. 469-688-6985. [email protected]. Monday through Friday, 7am–3pm Central. Quality Custom Craftsmanship.

Tail housing kits

Cable drive off an electronic overdrive, shifter back where it belongs.

Cast and machined 4L60E tail housing

4L60E / 4L65E / 4L70E Tail Housing Kit

Mechanical speedometer drive and factory shifter location for the 4L60E family.

$850.00

Tail housing with the speedometer gear index visible

4L80E Tail Housing Kit

The heavy-duty option, same mechanical speedometer conversion.

$900.00

6 bolt to 4 bolt transmission adapter

6 Bolt to 4 Bolt Adapter

Allows a 6 bolt transmission to accept a stock 4 bolt tail housing.

$500.00

LS engine covers

Aircraft-grade carbon or gelcoat, infused on our own table. Hardware is in the box.

One-piece carbon fiber LS engine cover

LS 1pc Carbon Fiber Engine Cover

Aircraft-grade carbon, one piece, mounting hardware included. Fits any LS except the LS9.

$1450.00

Gelcoat LS engine cover in an engine bay

LS Engine Cover, Gelcoat Finish

Same mould, gelcoat finish instead of exposed weave.

$599.00

Mechanical speedometer kits

Bolt-on kits that keep a factory mechanical speedometer and a working VSS.

Tail housing kit parts laid out, including housings, adapter, gears and hardware

4L60E / 4L65E / 4L70E Speed Kit, 1998 and newer

Converts a 1998-up 4L60E to a factory mechanical speedometer.

$850.00

4L80E tail housing used with the speedometer kit

4L80E Speedometer Kit

All new GM parts, no interference with stock wiring.

$900.00

Custom fabrication

Tooling and one-off composite work when the part you need was never made. Send photos and dimensions.

Questions people ask

What does Southwest Fabrication fabricate?

Tail housing kits for the 4L60E family and the 4L80E, mechanical speedometer kits, an LS 1-piece carbon fiber engine cover, a gelcoat LS engine cover, and one-off composite work. Parts are machined, laid up, or assembled at the shop in Caddo Mills, Texas.

Where is the shop, and where do you ship?

Southwest Fabrication is at 4540 FM1565, Caddo Mills, TX 75135, in Hunt County. The shop serves Caddo Mills, Greenville, Royse City, Rockwall, Commerce, Quinlan, and the Dallas-Fort Worth area. Catalog parts ship free to the lower 48 states. Alaska, Hawaii, and US territories are quoted by phone.

How do I get a quote?

Call 469-688-6985, email [email protected], or use the contact form. The shop is open Monday through Friday, 7am–3pm Central. A freight quote for Alaska, Hawaii, a territory, or an oversize part usually comes back within one business day.

What are the lead times?

Each part lists its own. Tail housing kits say 2–3 weeks, the carbon LS cover says 1–2 weeks, the gelcoat cover says 2 weeks, and both speedometer kits say they ship in 2 days. The shipping policy says housings and speed kits leave in 7 to 10 business days and stocked covers ship in 2 to 3 business days. Those two pages do not match. Call 469-688-6985 for the date on your order.