Alright, let’s cut to the chase. You’ve got a Mopar muscle car, probably a ’72 or ’73, and you’re staring at the door hinges. Maybe they’re sagging, maybe they’re rusted to kingdom come, or maybe you’re just doing a full resto and want everything perfect. You’ve probably heard whispers, seen forum posts, and wondered if a body mopar hinge chsnges from 72 73 is a big deal or just another minor tweak. I’ve been there, wrestling with these damn things on a few E-bodies myself, and let me tell you, it’s not always as straightforward as the parts catalog makes it seem.
The devil is often in the details, and with these classic Mopars, those details can mean the difference between a door that shuts like a bank vault and one that scrapes its way shut like a grumpy old man.
The Nitty-Gritty: What Changed (and Why It Matters)
So, you’re wondering about a body mopar hinge chsnges from 72 73. It might seem like a tiny detail, but for anyone trying to get their classic Mopar doors fitting right, it’s actually pretty significant. For the 1972 and 1973 model years, Mopar made a subtle but important shift in their door hinge design. Prior to this, you’d find a certain style of hinge, and then starting in ’72, they transitioned to a slightly different setup for the A, B, and E-body cars. The main difference isn’t a radical redesign, but a change in how the hinge pin interfaces with the hinge halves and, consequently, the overall adjustability and strength.
Think of it like this: imagine a jigsaw puzzle piece. The shape is mostly the same, but one tiny notch is different. It still fits, but it might sit a little tighter, or allow for a slightly different angle.
That’s what happened with these hinges. The core function remained – to swing the door open and shut – but the internal geometry and pin tolerances were tweaked. This affects how much slop you have, how the hinge wears over time, and most importantly for us restorers, how much adjustment you can get out of it when fitting doors to a possibly tweaked or worn body shell.
Many people don’t realize this, and they’ll try to swap hinges from a ’70 with a ’73 and wonder why things don’t line up perfectly, or why the door still sags after new bushings.
For the ’72 and ’73 years specifically, the hinge design generally moved towards a more solid pin and bushing system that aimed to reduce the wear and tear that plagued earlier models. The goal was likely to improve longevity and reduce that notorious door sag that many older cars develop. When you’re dealing with a car that’s forty, fifty years old, even a small change in hinge design can make a big difference in how well the door operates and seals. It’s not just about aesthetics; a properly hanging door contributes to the structural integrity of the car and prevents wind noise and water leaks. So, understanding these specific changes from ’72 to ’73 is key to sourcing the correct parts and achieving that satisfyingly solid door feel.
Spotting the Differences: Hinges Old vs. New
Okay, so how do you actually tell these hinges apart? It’s not like they have a giant sticker saying “Made for ’72!” The most common way to differentiate is by looking at the hinge pin and the way the bushing sits. On older Mopars (pre-’72 generally), the hinge pin might be a simpler design, and the bushings could be made of materials that wore out faster. The machining tolerances might have also been a bit looser, leading to more play. When Mopar changed things up for ’72 and ’73, they often refined the pin itself, sometimes making it slightly thicker or with a different taper, and the bushings became more durable.
One of the giveaways is often how the pin is retained. Some earlier hinges might have had pins that were more prone to working their way out over time, especially with a heavy door. The later ’72-’73 designs tend to have a more secure pin retention system, sometimes incorporating a clip or a more precise press-fit. Visually, the hinge halves themselves might have subtle differences in the machining of the holes where the pin goes.
You might see slightly different radii or depth profiles. If you have an original door and hinge assembly from a ’72 or ’73, compare it side-by-side with one from a ’70 or ’71. You’ll likely notice these small but significant machining variations.
Don’t underestimate the power of just grabbing the pin and wiggling it. Less wiggle means a better fit and less potential for sag. I remember once trying to fit a door on a ’71 Charger using hinges I thought were correct, but the door just wouldn’t sit right. It was about 1/8th of an inch off at the top, and no amount of adjustment would fix it.
Turns out, the hinges were from a ’69 – close, but not quite the same. A lesson learned the hard way about those subtle differences.
Here’s a quick rundown of what to look for: (See Also: A Box Without Hinges Key )
| Feature | Pre-’72 (General) | ’72-’73 Specific | Opinion/Verdict |
|---|---|---|---|
| Pin Retention | Can be looser, prone to working out | Generally more secure, tighter fit | ’72-’73 is usually better for longevity |
| Bushings | Often wear faster, more play | More durable materials, tighter tolerances | ’72-’73 offers better initial fit and longer life |
| Machining | Can be less precise, more slop | Refined machining, less inherent play | ’72-’73 provides better alignment potential |
| Overall Feel | May feel looser, more ‘worn’ | Generally feels tighter, more precise | ’72-’73 often feels like a better-engineered part |
This table might seem basic, but these are the physical cues you’re looking for. If you’re buying reproduction hinges, always try to get them specifically listed for your year range. Don’t just assume a ‘70-’74 hinge will be identical. It’s usually not worth the headache.
Common Mistakes and How to Avoid Them
The biggest mistake people make, and I’ve seen it countless times on forums and in garages, is assuming all Mopar door hinges from the early 70s are interchangeable. They aren’t. As we’ve discussed, a body mopar hinge chsnges from 72 73 is a specific thing.
Buying a set advertised for a ’70 Challenger when you have a ’73 ‘Cuda is a recipe for frustration. The subtle differences in machining and pin design mean that while they might bolt up, the door alignment will be off.
You’ll spend hours trying to adjust the striker and the hinges, only to realize the problem was the mismatched parts all along. It’s like trying to force a square peg into a round hole – it’ll look close, but it won’t be right, and it’ll never function perfectly.
Another common pitfall is ignoring the condition of the hinge pin and bushings. Even if you have the correct ’72-’73 hinges, if the pins are worn or the bushings are hammered, you’re going to have sag.
Everyone talks about replacing the entire hinge, but sometimes just replacing the pins and bushings in good, correct hinges can solve your problem for a fraction of the cost. This is where you can save a few bucks. I’ve had good luck with just replacing the pins and bushings on otherwise solid original hinges.
It’s more work, mind you, as you often have to press them out and in, but it can be worth it. Cheap reproduction pins and bushings can also be a problem – I’ve seen some that are too soft or too undersized, leading to premature wear. Always look for reputable brands or even NOS (New Old Stock) if your budget allows for the best quality.
Then there’s the issue of body flex and wear. These cars are old. The unibody structure can flex, and the mounting points for the hinges can become elongated or even cracked. Simply bolting on new hinges won’t magically fix a warped door frame or a weakened A-pillar. You need to inspect the surrounding metalwork thoroughly. Check the weld seams where the hinge pillars meet the body. Look for any signs of stress cracks or previous repairs that might have been done poorly. If the metal is compromised, you’re fighting a losing battle. Sometimes, you might need to reinforce or even replace sections of the hinge pillar itself before you even think about hanging the door.
People Also Ask:
Are 1972 and 1973 Mopar Door Hinges Interchangeable?
Generally, yes, hinges from 1972 and 1973 Mopar models are designed to be interchangeable within the same body style (A, B, E-body). However, it’s important to be aware that subtle manufacturing differences can exist between years and even different trim levels. Always try to match the year of your car for the best fit. The ’72-’73 timeframe represents a specific evolution in hinge design compared to earlier or later years, so mixing these with, say, ’70 or ’75 hinges might lead to alignment issues.
What Is the Difference Between 1972 and 1973 Mopar Door Hinges?
The primary differences between 1972 and 1973 Mopar door hinges are subtle refinements in machining, pin design, and bushing material aimed at improving durability and reducing wear. While the overall function and mounting points are largely the same for a given body style, these minor improvements can affect the precision of the fit and the longevity of the hinge. For most practical purposes, ’72 and ’73 hinges can be swapped, but a discerning restorer will note the slight evolution in quality and fit.
Can I Use 1970 Mopar Door Hinges on a 1973?
While you might be able to bolt on 1970 Mopar door hinges to a 1973 model, it is generally not recommended for a perfect fit. The ’72 and ’73 model years saw specific updates to the hinge design compared to the earlier years. These changes, while subtle, affect the pin-to-bushing interface and overall tolerances. Using 1970 hinges on a 1973 car could result in alignment problems, door sag, or difficulty in achieving a proper door gap. It’s best to use hinges designed for your specific year or the ’72-’73 range for optimal results.
Restoration vs. Replacement: When to Buy New
This is where the rubber meets the road, or rather, the door meets the frame. You’ve got your ’72 or ’73 Mopar, and the hinges are shot. Do you try to rebuild what you have, or just bite the bullet and buy new reproduction hinges? Honestly, it depends on a few factors, primarily the condition of your original hinges and your budget. If your original hinges are severely rusted, bent, or have incredibly worn pivot points, rebuilding them might be more trouble than it’s worth. Trying to weld, straighten, and re-bush hinges that are fundamentally compromised can be a frustrating and expensive ordeal, often with less-than-perfect results. (See Also: Are Integrated Washing Machine Door Hinges Standard )
My personal take? If you can find a good, solid set of original ’72-’73 hinges, rebuilding them with new pins and bushings is often the best way to go.
You get the benefit of original Mopar steel, which is usually thicker and better quality than many reproductions. Plus, you know you’re getting the exact factory design. However, NOS original hinges in good condition are becoming rarer and pricier than a decent set of reproduction hinges. For many guys doing a resto on a budget, good quality reproduction hinges are the way to go.
I’ve used hinges from reputable aftermarket suppliers for several projects, and when sourced carefully, they can fit and function very well. You just have to do your homework.
When buying new, pay attention to the brand and read reviews. Some reproduction hinges are excellent, while others are frankly garbage.
Look for brands that specifically state they are for your ’72 or ’73 model year. A common problem with cheap reproductions is that the machining is off. The holes for the pins might be slightly oversized, or the overall shape might be subtly different, leading to alignment headaches down the road.
I once bought a set of really cheap hinges for a Duster, and the door sagged like crazy right out of the box. I ended up having to buy a more expensive set from a different manufacturer and swap the good pins and bushings from those into the original hinges I was trying to save.
It was a costly lesson in ‘you get what you pay for.’ So, if you’re going for new, aim for mid-to-higher-end reproduction parts. It’s an investment in a door that actually closes properly.
Practical Tips for Hinge Installation and Adjustment
Alright, you’ve got your correct ’72-’73 Mopar hinges, whether they’re original rebuilt or good quality reproductions. Now comes the fun part: installation and adjustment. This is where patience is your best friend. First, and this is important, clean the hinge mounting surfaces on the body and the door thoroughly. Get rid of any rust, old paint, or undercoating. A clean surface makes sure the hinge sits flush and true, which is vital for proper alignment. I usually use a wire wheel on an angle grinder, followed by a flap disc to get it smooth.
Before you bolt anything up permanently, do a dry fit. Hang the door with the hinges loosely bolted. This is your chance to see how it sits.
You’ll want to check your gaps – the space between the door and the fender, the door and the roof, and the door and the quarter panel. Aim for consistent gaps all around. This is where those subtle differences in a body mopar hinge chsnges from 72 73 can actually help if you have the correct ones.
If the gaps are way off, you might need to shim the hinges. Small washers or dedicated hinge shims can be used between the hinge and the body or door to fine-tune the alignment. Don’t be afraid to use them.
They are there for a reason! (See Also: Are Hinges Wheeels )
When tightening the hinge bolts, do it in stages. Snug them up on one hinge, then the other, and then snug up the door bolts.
Work your way around, tightening a little at a time. This prevents you from pulling the hinge out of alignment as you tighten. Once everything is snugged, close the door gently.
See how it feels. If it binds or scrapes, you’ll need to adjust.
Adjustment is usually done by slightly loosening the hinge bolts, nudging the door or hinge, and then re-tightening. It’s a back-and-forth process. Sometimes, you might need to adjust the striker plate as well – the part on the body that the door latch engages with.
Loosening its bolts allows you to move it in or out, or up and down, to fine-tune the final latching point. It can take a surprising amount of fiddling to get it perfect, so set aside a good chunk of time and try not to rush it.
A properly aligned door makes a huge difference in how the whole car feels.
What to Expect When Fitting Doors
Fitting doors on these classic Mopars can be a real test of your patience and mechanical aptitude. It’s not a job for the faint of heart, and it’s definitely one where you learn more with each car you tackle. The reality is that even with the correct ’72-’73 hinges, a perfectly aligned door isn’t always a bolt-on affair. The cars themselves have aged, and the metal can warp, flex, or sag over decades. You might have a solid car, but the door opening itself could be slightly out of square. This is where the hinge adjustment, combined with striker plate adjustment, comes into play. You’re not just bolting parts together; you’re fine-tuning a complex system.
One thing I’ve learned is that the weight of the door itself can be a factor. These doors are heavy! When you’re trying to hang one, especially by yourself, it can be a struggle. Having a helper or a good jack to support the door is a lifesaver. A hydraulic floor jack with a piece of wood on top can work wonders for supporting the door while you line up the hinge bolt holes. Also, don’t expect the factory gaps to be perfectly uniform by today’s standards. Early 70s Mopars often had slightly wider or more variable gaps than modern cars. Your goal is consistency and proper function, not necessarily a show-car gap if it means sacrificing seal integrity.
Don’t be afraid to remove the door, re-check your hinge mounting points, and then re-hang it. Sometimes, a fresh perspective and a clean slate can help you spot an issue you missed. I once spent an entire Saturday trying to get a door to hang right, only to realize I had a washer stuck between the hinge and the pillar on one side.
Took it off, and everything lined up. Embarrassing, but a good reminder to be meticulous. The satisfaction of a door that opens smoothly, closes with a solid thunk, and seals well is absolutely worth the effort.
It’s a tactile reward for your hard work and attention to detail. It makes the whole car feel more solid and complete.
Final Thoughts
So, there you have it. A body mopar hinge chsnges from 72 73 might sound like a small detail, but for anyone striving for that perfect fit and finish on their classic Mopar, it’s the kind of information that saves you a ton of grief. Understanding these subtle differences helps you source the right parts and know what to look for when you’re buying reproductions or trying to save originals.
Don’t get discouraged if fitting doors takes time. It’s a rite of passage for many classic car owners. Be patient, be meticulous, and remember that attention to these smaller details is what truly sets a well-done restoration apart from one that’s just ‘good enough.’ A properly hanging door isn’t just about looks; it’s about the integrity and feel of the entire vehicle.
