Chevrolet Corvette Style Bright Silver 5 Y-Spoke Left/Right Directional Double-Ring Forged Wheels
Monoblock · Bright Silver
1948 Cadillac Coach 2-Door Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Cadillac Coach 2-Door wheels? This page gives the 1948 Cadillac Coach 2-Door bolt pattern (5x127), centre bore, factory rim size and the offset range for aftermarket and forged Cadillac Coach 2-Door rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 1948 Cadillac Coach 2-Door uses a 5x127 bolt pattern with a 78.1 mm centre bore and M12x1.5 lug nuts. Factory wheels: 15x5.5J, front and rear. For aftermarket wheels, 16x7.0J ET-10 sits flush and 17x8.0J ET-15 is the most aggressive fit.
Forged wheels for the 1948 Cadillac Coach 2-Door — drilled 5x127 with a 78.1 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
Get a quote for this car
Cadillac Coach 2-Door (1948): 5x127 bolt pattern, 78.1mm center bore. Factory wheels: 15x5.5J F/R. Reference fitment ranges.
Bolt Pattern5x127
Wheel Bolt/NutM12x1.5 Nut
Center Bore78.1mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year1948
CategoryCoupe
Data check: the bolt pattern and center bore on this page have not yet been confirmed by a second independent source. Measure your hub or ask us before ordering. How we verify
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | 15x5.5J F/R |
| Flush Fitment | 16x7.0J at ET-10 offset |
| Maximum Aggressive | 17x8.0J at ET-15 offset |
Forged Wheel Designs for the Cadillac Coach 2-Door
Every design below is forged to order, so it can be machined to the Cadillac Coach 2-Door's 5x127 bolt pattern and 78.1 mm center bore, with the width and offset calculated for your setup.
Cadillac OEM-Style Chrome Multi-Spoke Dish Floating Cap Forged Wheels
Monoblock · Chrome
Scorpion Metallic Gray Exposed Bolt Detail Forged Wheels
Replica · Metallic Gray
Orange Mesh Silver-Ring Beadlock Forged Wheels
Off-Road Beadlock · Orange
Cadillac OEM-Style Polished Slotted Disc Forged Wheels
Monoblock · Polished
Gloss Black Multi-Spoke Forged Wheels
Monoblock · Gloss Black
Matte Silver Forged Wheels
Monoblock · Matte Silver
Cadillac OEM-Style Bronze 5 Y-Spoke Forged Wheels
Monoblock · Bronze
How to Read Wheel Offset & Measurements
Use these two references before ordering: the left diagram shows where each spec (PCD, center bore, offset, width and diameter) is measured on the wheel; the right diagram shows how positive, zero and negative offset shift the wheel face relative to the hub centerline.
ANKUSI Engineering Expert Advice
Coupes and performance platforms are where rotational mass shows up fastest — in acceleration, in braking, and in how quickly the chassis changes direction. Forging lets us build to the same strength spec as the factory wheel at a meaningfully lower rotational weight, which is where the performance gain actually comes from, not just the visual one.
The Cadillac Coach 2-Door runs a 5x127 bolt pattern, 78.1mm center bore, and a 15x5.5J, front and rear, wheel from the factory. Our Flush Fitment reference is 16x7.0J ET-10, which tucks the tire under the fender lip on a stock-height Cadillac Coach 2-Door. Our Maximum Aggressive reference is 17x8.0J ET-15 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Cadillac Coach 2-Door OE Wheel Specs
The 1948 Cadillac Coach 2-Door (Coupe) uses a 5x127 bolt pattern with a 78.1mm center bore. Factory wheels are 15x5.5J F/R.
Why the factory spec works for most owners:
- Keeps the factory ride quality and noise levels intact
- A common fitment for this class, so replacement tires are easy to source
- Preserves clearance around the OE brakes and suspension geometry
- Delivers predictable, easy-to-live-with handling for daily use
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Cadillac Coach 2-Door (1948) we drill the 5x127 pattern and cut the centre bore to 78.1mm on our own CNC line, so the wheel hub-centres on the car with no spacer rings, in whatever diameter, width and offset you specify.
Converting these ET figures to backspacing? Use the wheel offset and backspacing calculator.
The figures on this page are part of our open wheel fitment dataset — 10,093 vehicles, free to download, CC BY 4.0.
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE: 15x5.5J ET0 → ~3.25″ backspacing
- Flush: 16x7.0J ET-10 → ~3.61″ backspacing
- Max: 17x8.0J ET-15 → ~3.91″ backspacing
Want to check a different width or offset before you order? Use our Offset & Backspacing Calculator to solve the numbers yourself, or looking for your exact Cadillac spec, or want a wheel built to a custom offset for your Cadillac Coach 2-Door? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.
Vehicles With the Same Hub as the Cadillac Coach 2-Door (5x127, 78.1 mm Bore)
In our database, 6 other vehicle entries from 3 makes use exactly the same 5x127 bolt pattern and 78.1 mm center bore. Factory wheels from these cars bolt on and center on the hub without rings; offset and width still have to be checked.
5x127 is used by 1.3% of the vehicle pages in our English fitment guide (82 of 6,503); 8.5% of those also use a 78.1 mm center bore.
Hub-Centric Rings for a 78.1 mm Center Bore
A wheel with a center bore larger than 78.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 84.1 mm | 84.1 → 78.1 mm |
| 93.1 mm | 93.1 → 78.1 mm |
| 100.1 mm | 100.1 → 78.1 mm |
| 106.1 mm | 106.1 → 78.1 mm |
ANKUSI forged wheels are bored to exactly 78.1 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the Cadillac Coach 2-Door use?
The 1948 Cadillac Coach 2-Door uses a 5x127 bolt pattern.
How many lug bolts does the Cadillac Coach 2-Door use?
The Cadillac Coach 2-Door uses a 5-lug bolt pattern (5x127), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the Cadillac Coach 2-Door?
The Cadillac Coach 2-Door's center bore is 78.1mm. If an aftermarket wheel has a larger center bore than this, hub-centric rings are recommended so the wheel centers on the hub itself rather than relying on the lug bolts alone.
What size are the factory (stock) wheels on the Cadillac Coach 2-Door?
Factory wheels on the Cadillac Coach 2-Door are 15x5.5J F/R.
What is the biggest wheel size I can fit on my Cadillac Coach 2-Door without rubbing?
The most aggressive fitment we recommend without fender work is 17x8.0J at ET-15 offset. Going beyond this typically causes rubbing under compression unless you roll the fenders or add camber correction.
What does a flush wheel fitment look like on the Cadillac Coach 2-Door?
For a flush look with minimal to no rubbing, we recommend 16x7.0J at ET-10 offset as a starting point on a stock or mildly lowered Cadillac Coach 2-Door.
Do I need wheel spacers for my Cadillac Coach 2-Door?
No. ANKUSI forges each wheel to your exact target offset, including the flush or max specs above, so you get the correct fitment without stacking spacers. Spacers are typically only used to push out an existing OE-offset wheel without replacing it, which isn't necessary when you're ordering a custom-offset forged wheel.
How do I calculate wheel backspacing for my Cadillac Coach 2-Door?
Backspacing (in inches) = wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance). For example, the flush spec above works out to roughly 3.61" of backspacing.
What's the difference between wheel offset and backspacing?
Offset is the distance in millimeters from the wheel's true centerline to its mounting face (positive offset pulls the wheel in, negative pushes it out). Backspacing is the distance in inches from the mounting face to the back edge of the wheel barrel. They describe the same fitment from two different reference points, which is why ANKUSI lists both above — some shops and tuning guides quote offset, others quote backspacing.
Can I run staggered wheels (different sizes front and rear) on my Cadillac Coach 2-Door?
The Cadillac Coach 2-Door runs the same wheel size front and rear from the factory, so staggered fitment is not required. ANKUSI can still forge a staggered set (wider rear) on request if you want a more aggressive stance.
Sources and Last Update
Data checked against: avtoreference.com, tirewheelguide.com.
This record is part of the open ANKUSI Wheel Fitment Dataset (DOI 10.5281/zenodo.23241521, CC BY 4.0).
Other cars on the same factory size: 15x5.5 wheels · 15 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.
Bolt pattern and center bore on this page come from published fitment references and are still awaiting a second independent check. Last reviewed 2026-09-18. Spotted an error? Email info@ankusi.com and we will verify and correct it.