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006Shop manual

The shop manual

Torque figures, failure modes and the two things that turn a two-hour job into a weekend. Written by people who have done them, not by a content agency.

SHEET
006
SUBJECT
SHOP MANUAL
SCALE
1:1
REV
A
Install guidesModerate5–6 hours

Converting a 1967–1972 C10 to front disc brakes

The full job on an Action Line truck, including the master cylinder question everybody gets wrong and the proportioning valve everybody skips.

The CLASSIC PARTS GARAGE counter11 min readAug 23, 2026
SHEET 006 · FIGURE 01
CONVERTING A 1967–1972 C10 TO FRONT DISC B
Install guidesEasy

Points to electronic ignition without changing how it looks

Fitting a Pertronix module inside the original distributor: the coil question, the polarity trap, and how to keep the option of putting it back.

7 minJul 26, 2026
Install guidesHard

Replacing cab corners and rocker panels without ruining the door gaps

Cab corners are the most commonly botched repair on a classic truck. The welding is the easy part. Keeping the cab in shape while you cut the bottom out of it is the job.

12 minJul 19, 2026
Install guidesEasy

Fitting a complete weatherstrip kit without tearing it

New rubber is the cheapest thing you can do that makes a fifty-year-old vehicle feel finished. It is also easy to ruin in the first ten minutes by stretching it.

8 minJul 12, 2026
Install guidesModerate

Fitting and tuning a 600 CFM carburettor on a small block

Bolting it on takes an hour. The tuning is where people give up and conclude the carburettor is faulty, when almost always it is the ignition timing.

11 minJul 5, 2026
Install guidesModerate

Hanging a reproduction fender so the gaps look factory

Reproduction sheet metal fits, but it does not self-align. The difference between a good result and an obviously repaired one is entirely in the setup.

9 minJun 28, 2026
Install guidesModerate

Rebuilding the SU-type carburettors on a Datsun L-series six

Round-top SUs are simple, rebuildable and much misunderstood. Most that get replaced with a downdraught conversion were only worn in two places.

10 minJun 21, 2026
Install guidesModerate

Replacing a fuel tank and sending unit, and getting the gauge to read right

A tank swap is straightforward. The gauge reading correctly afterwards is not automatic, and the reason is almost always ohms.

9 minJun 14, 2026