Where to find a Chrysler Sno Runner Parts Diagram and what to expect when you actually use one
The Chrysler Sno Runner was a limited-run tracked snow vehicle from the late 1950s, produced in such small numbers that finding a clean, accurate parts diagram is genuinely frustrating. Most people who search for a Chrysler Sno Runner Parts Diagram end up hitting dead links, blurry photocopies, or pages that are really just generic Jeepster Commando diagrams mislabeled because the chassis shared some early components. I spent about three weekends tracking down usable references after buying a runner that had been sitting in a barn since 1963. Here is the practical breakdown of what exists, where to look, and what actually works. Official sources are basically nonexistent. Chrysler never published a comprehensive parts manual for the Sno Runner the way they did for the Imperial or the 300. What survives comes from a handful of places, and most of them have caveats. The best starting point is the Chrysler Corporation historical archives, which hold some engineering documents and spare parts catalogs. These are not digitized in high resolution. You can request copies through the Henry Ford Museum research desk or through Chrysler's own heritage division, but turnaround time is measured in weeks, not hours. The documents that come back are typically black-and-white Xerox copies of original typed parts lists with hand-drawn callout arrows. They are legible, but they are not beautiful.
The next viable source is the Sno Runners International community. This is a small group of owners and restorers who have been cross-referencing original shop manuals, dealer bulletins, and replacement parts catalogs for decades. They maintain a shared folder structure that includes scanned pages from the original 1958 dealer parts book. The quality varies page by page. Some sheets are clear enough to read part numbers. Others are faded to the point where you have to guess between "K-147" and "K-174" on a bracket designation. I recommend joining the community forum first before buying any scanned documentation from third-party sellers, because the community has already authenticated which scans are reliable and which are garbled copies of garbled copies. For people who cannot access those resources directly, there are aftermarket reproduction kits sold by specialty off-road and vintage vehicle parts suppliers. These are not factory diagrams. They are tracing overlays created by restorers who have taken apart their own vehicles and reverse-engineered the layouts. They are useful for visual reference, but the part numbers on them will not match the original Chrysler numbering system. If you are ordering reproduction hardware, this does not matter. If you are trying to verify whether a stamped aluminum bracket is an original 1958 left-track-idler mount or a 1960 revision, the aftermarket diagrams will not help you.
What the diagram actually shows and how to read it
A typical Chrysler Sno Runner parts diagram breaks down into five major assemblies: the powertrain and transmission mount, the tracked undercarriage with drive sprocket and idler wheels, the suspension and track tensioning system, the body and cab structure, and the steering linkage. That sounds straightforward until you realize that the original diagrams use Chrysler's internal engineering part numbers, not a consumer-friendly numbering system. A single bracket might appear as "Assembly 47-B, Item 12" in the diagram and then cross-reference to part number "C-384721" in the master parts list. The master parts list is usually on a separate page or in a separate booklet. You need both to make sense of anything. The biggest confusion point is the track assembly. The Sno Runner used a continuous rubber track with steel cleats, and the track tensioning system involved an adjustable idler axle, a tension spring, and a pivot mount that Chrysler documented with multiple revision marks. On the diagram, these revisions look like small letters appended to part numbers (A, B, C). In practice, a vehicle built in early 1958 might have the original "A" version of the idler mount, while a vehicle from late 1959 could have the "C" version with a reinforced gusset. If you order the wrong revision based on a diagram that does not clearly state the build date, the bolt holes will not line up and you will waste money and time. The workaround is to physically measure the existing mounting points on your vehicle before ordering anything, rather than trusting the diagram alone. I learned this the hard way. I ordered a complete set of idler arm assemblies from a vintage parts supplier based on a diagram I found online. When they arrived, the bolt pattern was off by about three millimeters. The diagram I was looking at was for a 1959 Sno Runner, and my vehicle was a 1957 prototype run with pre-production suspension geometry. The fix was to take the new arms to a machine shop and have the bolt holes re-drilled to match the original pattern. It cost about eighty dollars in labor and two days of the vehicle being off the ground, but it was faster than trying to return and reorder the correct revision, which involved tracking down a part number that almost no supplier kept in stock anymore.
Get the Full Details
Common pitfalls and how to avoid them
There are several recurring problems that anyone working with a Chrysler Sno Runner Parts Diagram will run into, and most of them stem from the same root cause: the documentation is incomplete and inconsistent. Pitfall one: assuming the diagram covers the full vehicle. Many surviving diagrams only cover the drivetrain and suspension. The electrical system, the heating components, and the cab interior trim are often documented in separate loose-leaf sheets that were never bound together. If you are restoring the interior and only have the mechanical diagram, you will hit a wall. The solution is to explicitly search for the electrical schematic and the trim parts list as separate documents. They exist, but they are filed under different catalog numbers. Pitfall two: misreading faded part numbers. This sounds obvious, but it is the single most common error I see in restoration threads. A "5" can look like an "S." A "2" can look like a "Z." A "0" can look like a "O." When a part number is ambiguous, do not guess. Use a magnifying lamp with adjustable LED lighting at an oblique angle to the paper surface. This reveals ink texture and printing depth that flat illumination hides. If the number is still unclear, compare it against a known-good example from another owner's verified diagram. The Sno Runners International community has members who have photographed their original manuals under consistent lighting conditions, and those reference images are worth more than any commercial scan.
Pitfall three: treating the diagram as a substitute for a physical inspection. The Sno Runner was never mass-produced. Variations between individual vehicles are real and significant. Two Sno Runners built in the same year can have different steering box ratios, different track pad configurations, and different carburetor setups depending on which production batch they came from. A diagram gives you the intended configuration, not the actual configuration of your specific vehicle. Always verify critical mounting surfaces, bolt patterns, and clearance dimensions against the physical vehicle before committing to a parts order.
Practical steps for using the diagram during a restoration
If you are actively working on a Sno Runner, here is the process I use, and it cuts down on wasted orders and misaligned parts significantly. First, photograph the existing components before disassembly. Label each part with masking tape and a permanent marker using a temporary reference code. Do not rely on memory. Second, pull the relevant diagram section and annotate it directly with a pencil, marking which revision number applies to your vehicle based on the serial plate and any physical measurements you take. Third, cross-reference every annotated part number against the master parts list to confirm availability. Fourth, order a single test part before committing to a full order. This verifies that the supplier's catalog matches the diagram and that the part actually fits your specific revision. Fifth, keep a running log of part numbers, suppliers, and fitment results. This log becomes your personal reference document, and it is often more accurate than any surviving original diagram because it accounts for the real-world variations that Chrysler never bothered to document. The Chrysler Sno Runner is a niche vehicle with niche documentation. The diagrams that exist are valuable, but they are incomplete by design and degraded by age. The approach that actually works is treating the diagram as a starting reference rather than a final authority, verifying everything physically, and building your own annotated record over time. That record will serve you better than any scan you download, because it will reflect the actual state of your vehicle, not the idealized version Chrysler drew on paper in 1958.
