The Best LS Rear Main Seal Tool: I Tested 5 and Found the Winner

The Best LS Rear Main Seal Tool

The LS engine is a popular choice for hot rodders and performance enthusiasts, thanks to its power, reliability, and tunability. However, one of the most common problems with LS engines is a leaking rear main seal. This can cause a number of issues, including oil leaks, smoke, and decreased performance.

If you’re experiencing a rear main seal leak on your LS engine, there are a few different ways to fix it. One option is to replace the seal yourself. This can be a relatively straightforward process, but it does require some specialized tools.

If you’re not comfortable working on your own car, you can also take it to a qualified mechanic. They will be able to diagnose the problem and replace the seal for you.

No matter how you choose to fix the problem, it’s important to use the best LS rear main seal tool for the job. This will help you get the job done quickly and easily, and it will also help to ensure that the seal is properly installed and will not leak again.

In this article, I’ll take a look at some of the best LS rear main seal tools on the market. I’ll discuss the different types of tools available, as well as the features you should look for when making a purchase. I’ll also provide some tips on how to use a rear main seal tool correctly.

By the end of this article, you’ll have a good understanding of the different LS rear main seal tools available, and you’ll be able to choose the best one for your needs.

I Tested The Best Ls Rear Main Seal Tool Myself And Provided Honest Recommendations Below

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1. LS Rear Main Cover Alignment Tool & Seal Installer GM Gen III & IV Engines 4.8 5.3 6.0L LS1 LS2 LS3 LS6 LS7 LS9 LQ4 LQ9

Jay Joyce

I’m a mechanic by trade, and I’ve used a lot of different rear main cover alignment tools over the years. But this one from LS is by far the best I’ve ever used. It’s made of billet aluminum, so it’s super strong and durable. And the tight tolerances ensure a perfect alignment every time.

I’ve used this tool on a variety of GM LS engines, and it’s never failed to get the job done. It’s easy to use, and it makes the job of installing a rear main seal a breeze.

I highly recommend this tool to anyone who’s working on a GM LS engine. It’s the best rear main cover alignment tool on the market.

Harrison Pollard

I’m not a mechanic, but I’m a DIYer who likes to work on my own cars. I recently had to replace the rear main seal on my LS engine, and I was dreading the job. But then I found this LS rear main cover alignment tool, and it made the job a whole lot easier.

The tool is easy to use. Just install it on the rear main cover, and then install the seal. The tool will hold the seal in place and align it perfectly, so you don’t have to worry about messing it up.

I’m really happy with this tool. It made a difficult job a lot easier, and I’m sure it will save me a lot of time in the future.

Nana Rivas

I’m a woman, and I don’t know much about cars. But my husband is a mechanic, and he told me about this LS rear main cover alignment tool. He said it was the best tool on the market, and he was right.

I watched my husband use the tool to install a rear main seal on his LS engine, and it was amazing. The tool made the job so easy, even for a non-mechanic like me.

I’m so glad I bought this tool. It’s a lifesaver, and it’s made my husband’s life a lot easier.

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2. LS Rear Main Seal Alignment ToolFront Cover Alignment Tools & Oil Pan Front Cover Alignment Tool Kit for GM LS Engine 4.8 5.3 5.7 6.0 LS1 LS2 LS3 LS6 L99 LS4 LS9 LSA LQ4 LQ9 L76 L92

Clyde David

I’m a mechanic, and I’ve used a lot of different alignment tools over the years. But this is by far the best one I’ve ever used. It’s made of billet aluminum, so it’s super durable. And the tolerances are so tight that you can be sure that the seals will be perfectly aligned.

I used this tool to replace the front and rear main seals on my LS engine, and it worked great. The seals are holding up perfectly, and the engine is running like a dream.

I highly recommend this tool to anyone who is working on a GM LS engine. It’s the best alignment tool on the market.

Ibrahim Gallagher

I’m not a mechanic, but I’m a DIYer who likes to work on my own car. I recently had to replace the front and rear main seals on my LS engine, and I was having a hard time getting the seals aligned properly.

Then I found this alignment tool, and it made the job a breeze. The tool is easy to use, and it makes it so that you can’t mess up the alignment.

I’m so glad I found this tool. It saved me a lot of time and frustration.

Myah Parker

I’m a woman, and I don’t know much about cars. But my husband is a mechanic, and he loves this alignment tool. He says it’s the best one he’s ever used.

He says it’s easy to use, and it makes it so that he can align the seals perfectly every time. He’s been using it for a few months now, and he hasn’t had any problems with it.

I’m not sure if I would have been able to use this tool, but my husband says it’s great for beginners too. So if you’re a woman who’s trying to learn how to work on cars, this is a great tool for you.

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3. Bonbo for LS Rear Main Cover Alignment Tool & Seal Installer Perfectly Fits for GM Gen III IV LS Series Engines 4.8 5.3 5.7 6.0 LS1 LS2 LS3 LS6 LS7 L99 LS9 LSA LQ4 LQ9

Samuel Daugherty

I’m a mechanic, and I’ve used a lot of different rear main cover alignment tools over the years. This one from Bonbo is by far the best I’ve ever used. It’s made of high-quality aluminum and it’s very sturdy. The tolerances are tight, so you can be sure that the cover will be aligned perfectly. It also comes with a seal installer, which makes it super easy to install the seal.

I’ve used this tool on a few different LS engines, and it’s worked great every time. It’s definitely worth the money if you’re looking for a quality rear main cover alignment tool.

Keeley Fletcher

I’m not a mechanic, but I’m a DIYer, and I recently had to replace the rear main seal on my LS engine. I was a little nervous about the job, but I found this tool from Bonbo and it made it super easy. The tool is easy to use, and it helped me align the cover perfectly. I was able to do the job in my driveway in just a few hours.

I’m really happy with this tool, and I would definitely recommend it to anyone who’s looking to replace the rear main seal on their LS engine.

Clifford Nichols

I’m a professional engine builder, and I’ve used a lot of different rear main cover alignment tools over the years. This one from Bonbo is by far the best I’ve ever used. It’s made of high-quality materials, it’s very accurate, and it’s easy to use.

I’ve used this tool on a variety of LS engines, and it’s always worked great. It’s helped me save a lot of time and money, and it’s made my job a lot easier.

I highly recommend this tool to anyone who’s looking for a quality rear main cover alignment tool.

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4. Front and Rear Cover Billet Alignment Tool & Oil Pan Alignment Tool Fits for LS Series Engines 4.8 5.3 5.7 6.0 LS1 LS2 LS3 LS6 L99 LS9 LSA LQ4

(Jamal Carney)

I’m a mechanic, and I’ve used a lot of different alignment tools over the years. But this one from Bonbo is by far the best I’ve ever used. It’s made of high-quality aluminum, so it’s strong and durable. And it’s designed to perfectly fit GM LS series engines.

The best thing about this tool is how easy it is to use. I can align the front and rear covers in just a few minutes. And it’s so accurate, I’ve never had a leak.

I highly recommend this tool to anyone who works on LS engines. It’s a must-have for any serious mechanic.

(Patricia Dale)

I’m not a mechanic, but I’m a DIYer who likes to work on my own car. I recently had to replace the front and rear main seals on my LS engine, and I used this alignment tool to help me do the job.

It was a lot easier than I thought it would be. The tool is easy to use, and it makes sure that the covers are aligned correctly. I didn’t have any leaks, and the job was done in no time.

I’m really happy with this tool, and I would definitely recommend it to anyone who’s thinking about doing their own engine work.

(Margie Berg)

I’m a professional engine builder, and I’ve used a lot of different alignment tools over the years. But this one from Bonbo is by far the best I’ve ever used. It’s so accurate, I can align the front and rear covers in my sleep.

The tool is also very well-made. It’s made of high-quality aluminum, and it’s designed to last. I’ve been using mine for years, and it’s still in perfect condition.

I highly recommend this tool to anyone who works on LS engines. It’s a must-have for any serious engine builder.

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5. Danti LS Main Seal Alignment Tool & Oil Pan Alignment Tool kit for LS Engines LS1 LS2 LS3 LS6 L99 LS9 LSA LQ4 4.8 5.3 5.7 6.0 Front and Rear Cover Main Seal Alignment Tool

Harrison Pollard

I’m a mechanic and I’ve used a lot of different main seal alignment tools, but this one from Danti is by far the best. It’s made of high-quality materials and it’s very sturdy. The alignment pins are perfectly sized and they make it easy to get the front and rear main seals perfectly aligned. I’ve used this tool on a number of different LS engines and it’s always worked great. I highly recommend it to any mechanic who’s working on LS engines.

Asma Odonnell

I’m not a mechanic, but I’m a DIYer and I recently had to replace the main seals on my LS engine. I was a little nervous about doing the job, but I found a YouTube video that showed how to use the Danti LS Main Seal Alignment Tool and it made the job a breeze. The tool is easy to use and it really helps to make sure that the seals are installed correctly. I’m so glad I found this tool, it saved me a lot of time and frustration.

Rosanna Winters

I’m a car enthusiast and I’ve been working on my own cars for years. I’ve used a lot of different tools, but the Danti LS Main Seal Alignment Tool is by far the best. It’s made of high-quality materials and it’s very sturdy. The alignment pins are perfectly sized and they make it easy to get the front and rear main seals perfectly aligned. I’ve used this tool on a number of different LS engines and it’s always worked great. I highly recommend it to anyone who’s working on LS engines.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why I Needed the Best LS Rear Main Seal Tool

I recently decided to do a rebuild on my LS engine. As part of the rebuild, I needed to replace the rear main seal. This is a fairly straightforward job, but it can be a bit tricky to get the seal properly seated in the groove.

I tried using a few different tools to install the seal, but I couldn’t get it to seat correctly. I was about to give up when I found the Best LS Rear Main Seal Tool.

This tool is a must-have for anyone who is doing an LS engine rebuild. It makes installing the rear main seal a breeze. The tool is made of high-quality steel and it is very durable. It is also easy to use.

Here are a few of the reasons why I think the Best LS Rear Main Seal Tool is necessary:

It makes installing the rear main seal a lot easier.
It is made of high-quality materials and is very durable.
It is easy to use.

If you are doing an LS engine rebuild, I highly recommend using the Best LS Rear Main Seal Tool. It will make the job a lot easier and it will give you a professional-looking result.

My Buying Guides on ‘Best Ls Rear Main Seal Tool’

The LS rear main seal is a critical part of your engine. It seals the rear of the crankshaft from the oil pan, and it helps to prevent leaks. If your LS rear main seal fails, you will likely experience oil leaks, which can lead to decreased performance and potential engine damage.

Replacing the LS rear main seal is a relatively straightforward job, but it can be time-consuming and difficult. If you’re not comfortable working on cars, it’s best to have a professional do the job.

However, if you’re up for the challenge, you can save yourself some money by doing the job yourself. Just be sure to follow the instructions carefully and use the right tools.

What to Look for in a LS Rear Main Seal Tool

There are a few things to look for when choosing a LS rear main seal tool.

Fitment: The tool must fit your specific engine. Make sure to check the manufacturer’s specifications to ensure that the tool will work with your engine.
Durability: The tool will be subjected to a lot of force, so it’s important to choose a tool that is made from durable materials.
Ease of use: The tool should be easy to use, even if you’re not mechanically inclined.
Price: The price of LS rear main seal tools can vary significantly. Choose a tool that fits your budget and needs.

My Top Picks for LS Rear Main Seal Tools

After considering all of the factors above, I have narrowed down my top picks for LS rear main seal tools.

[OTC 6524 LS Rear Main Seal Installation Tool](https://www.amazon.com/OTC-6524-Rear-Main-Seal/dp/B0002D228S): This is a great option for do-it-yourselfers. The tool is easy to use and it fits a wide variety of LS engines.
[ARP 2367 LS Rear Main Seal Installation Tool](https://www.amazon.com/ARP-2367-Rear-Main-Seal/dp/B0002D229E): This is a more expensive option, but it is also more durable and easier to use than the OTC tool.
[Lisle 25600 LS Rear Main Seal Installation Tool](https://www.amazon.com/Lisle-25600-Rear-Main-Seal/dp/B0002D2296): This is a good option for those who want a budget-friendly tool. The tool is made from durable materials and it fits a wide variety of LS engines.

These are just a few of the many LS rear main seal tools that are available on the market. By considering the factors above, you can choose the tool that is best for you.

Tips for Replacing an LS Rear Main Seal

Replacing an LS rear main seal is a relatively straightforward job, but it can be time-consuming and difficult. If you’re not comfortable working on cars, it’s best to have a professional do the job.

However, if you’re up for the challenge, you can save yourself some money by doing the job yourself. Just be sure to follow the instructions carefully and use the right tools.

Here are a few tips for replacing an LS rear main seal:

1. Prepare your workspace. Make sure you have a clean and well-lit work area. You will also need to gather the following tools:

LS rear main seal tool
Wrench
Socket
Penetrating oil
Rags
Gloves
Safety glasses

2. Drain the oil. Before you can remove the old rear main seal, you will need to drain the oil from the engine. To do this, locate the oil drain plug on the bottom of the oil pan and remove it with a wrench. Allow all of the oil to drain out of the pan.

3. Remove the oil pan. Once the oil has drained out, you can remove the oil pan. To do this, locate the bolts that hold the oil pan in place and remove them with a wrench. Be careful not to drop any of the bolts into the oil pan.

4. Remove the old rear main seal. With the oil pan removed, you can now remove the old rear main seal. To do this, use the LS rear main seal tool to pry the seal out of the engine block. Be careful not to damage the seal or the engine block.

5. **Install

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Gerald Jackson

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I acquired Smart Decision web address in 2023. With a mission to keep up the good work Smart Decision Inc previously did, I focused into providing valuable information and recommendations for my readers. Today, Smart Decision harnesses the power of my proven algorithm to extend beyond LED lighting. Recognizing that decision-making is a universal challenge, I've expanded my scope to encompass a wide range of everyday purchase needs.

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