Ok so the round tool centers the rear cover for the rear main but what holds it straight so its inline with the block so pan doesnt crack when torqed?

Tool centers rear cover. Torque all but the two long bolts of the rear cover to spec. Once rear cover with all rear facing bolts in and torqued to spec, you can install the two long bolts that insert from the bottom. Cover will stay in position if proper torqued correctly. Remove alignment tool and install new rear main seal. Done. Hope I answered your question. P.S; don't forget the to run a bead of sealant where the bottom of the rear cover and oil pan come together on each side.

Front Rear Cover And Oil Pan Alignment Tool Kit Fits

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145319CFA

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Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔩 Align Like a Pro, Seal Like a Boss!

RISK FREE INVESTMENT - Backed by a 12-month warranty and 30-day full refund policy—confidence in every turn of the bolt.
DURABILITY MEETS PERFORMANCE - Crafted from premium billet aluminum and quality steel for rugged use in professional garages and home workshops alike.
PINPOINT ALIGNMENT PRECISION - Billet aluminum tools engineered for ultra-tight tolerances, ensuring flawless front and rear cover positioning every time.
OIL PAN COVER SYNCHRONIZATION - Mimics oil pan and balancer to guarantee perfect seal alignment, preventing leaks and boosting engine longevity.
UNIVERSAL LS ENGINE COMPATIBILITY - Seamlessly fits a wide range of GM LS engines from 4.8L to 6.2L, including LS1 through LSA and LQ series—one kit for all your builds.

This Front Rear Cover and Oil Pan Alignment Tool Kit is a precision-engineered solution designed specifically for GM LS engines (4.8L to 6.2L). Crafted from billet aluminum and steel, it ensures perfect alignment of front and rear engine covers and oil pan, critical for optimal seal function and engine durability. Compatible with over 15 LS engine variants, this kit simplifies seal replacement and engine assembly, making it an essential tool for professional mechanics and serious enthusiasts alike.

Reviews

S**E

Works great for centering the front and rear seals

There is no plate to flush up the rear cover like there is for the front. Not sure I have seen one offered in an after market tool though. Still don't know why GM didn't just put locating dowel pins in to align the covers. This will definitely center the front and rear seals, but as you know, it's more about trying to keep them centered and adjusting the plate so as not to hang over the edge or to be to high or low on one side. Probably could do the job without these tools but it did simplify centering the seals on the crank shaft. Materiel did seem to be pretty nice and was finished well.

6.07.2024

A**N

The BEST Purchase

Makes aligning the front / rear cover super pain free, Installing seals was a cake walk. Worth the investment

18.12.2022

A**R

works well

i have used it twice already works good

21.03.2022

R**Y

Works well

Does it’s job

13.03.2026

J**S

Poor design

Does not hold tight to the block

26.12.2025

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145319CFA

Duties & taxes included

In stock

Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cote D' Ivoire.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Best international shipping I've ever tried. Worth every penny!

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ASIN	B08BRK9D9X
Best Sellers Rank	#295,299 in Automotive ( See Top 100 in Automotive ) #25 in Alignment Tools
Brand	Camoo
Customer Reviews	4.7 4.7 out of 5 stars (213)
Date First Available	April 29, 2020
Item Weight	3.27 pounds
Item model number	LS-JZ-3
Manufacturer	Camoo
Manufacturer Part Number	LS-JZ-3
Package Dimensions	11.02 x 4.96 x 2.17 inches

Front Rear Cover and Oil Pan Alignment Tool Kit Fits for LS Engines 4.8 5.3 5.7 6.0 6.2 LS1 LS2 LS3 LS4 LS6 L99 LS9 LSA LQ4

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Common Questions