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DIY Front End Alignment

Rockable

Well-known member
Joined
Jan 6, 2019
Messages
493
Location
Oak Ridge, NC
I restore old cars and put updated suspension and drivetrain in them. These are cars with a solid rear axle, so only a front end alignment is needed and lots of these cars have wheel wells that make it difficult to mount the 4 required alignment sensors that come on today's alignment machines. After doing a little investigation, I bought a DIY front end alignment kit from AutoSolo (www.autosolotools.com) and just completed an alignment on my 56 Ford Wagon project. Wow! I'm impressed with the quality of the tools and the price. Right now, I have one more car to align after it comes out of the upholstery shop. I figure the tools will have paid for themselves after that because doing an alignment on an old car like this can get time consuming since it's never been aligned. I wish I had bought these a long time ago because I had much rather do it myself.
 

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whateg01

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Joined
Mar 13, 2006
Messages
11,577
Location
doo dah, kansas, usa
I restore old cars and put updated suspension and drivetrain in them. These are cars with a solid rear axle, so only a front end alignment is needed and lots of these cars have wheel wells that make it difficult to mount the 4 required alignment sensors that come on today's alignment machines. After doing a little investigation, I bought a DIY front end alignment kit from AutoSolo (www.autosolotools.com) and just completed an alignment on my 56 Ford Wagon project. Wow! I'm impressed with the quality of the tools and the price. Right now, I have one more car to align after it comes out of the upholstery shop. I figure the tools will have paid for themselves after that because doing an alignment on an old car like this can get time consuming since it's never been aligned. I wish I had bought these a long time ago because I had much rather do it myself.
I've seen some that use your phone and cameras. I haven't clicked the link yet to see what this one does. I hate to see the prices charged for an alignment on a solid rear axle vehicle. I'm really not all that concerned over caster and camber. I'm more worried about toe. I can get close with a tape measure but it's hard to be on both sides of the vehicle at the same time. I did ask about getting my f150 aligned after putting a lift kit on it and found it humorous when the guy kept insisting that I need the 4 wheel alignment. I guess maybe they check to see if the axle is straight?
 

jsaw

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Joined
Oct 11, 2008
Messages
1,792
Location
Geneva, N.Y.
I did ask about getting my f150 aligned after putting a lift kit on it and found it humorous when the guy kept insisting that I need the 4 wheel alignment. I guess maybe they check to see if the axle is straight?

Four wheel is done to check the thrust angle. If the rear axle alignment is off for whatever reason it will affect the thrust angle.( truck will dog track) The front alignment is adjusted based on the thrust angle.
 

Beerhippie

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Joined
Oct 13, 2023
Messages
10,068
Location
Far NE Oregon
Four wheel is done to check the thrust angle. If the rear axle alignment is off for whatever reason it will affect the thrust angle.( truck will dog track) The front alignment is adjusted based on the thrust angle.
I had a Ford Falcon Supervan many years ago that went down the road at about a fifteen-degree angle. Hard to stay between the white lines that way.
 
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Jack_K

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Joined
Aug 7, 2021
Messages
350
Location
Australia
The rear alignment is important. Just like the front end on most cars only has toe adjustment but everything is checked in case something is bent or installed wrong.

The lack of an adjustment nut doesn't mean it doesn't need to be checked or corrected.

The thrust angle should be checked and there are various issues which can cause it to be off. Sometimes loosening the U bolts and shifting it over is enough. Spring load or sag changes it as well as any other damage or poor manufacturing. I have found bent diffs.

I have a 1930s alignment book and it goes through all the checks of the rear alignment.

I guess I'm a little odd because I'm even looking to buy the tools to adjust solid front axles.
 

gregs

Well-known member
Joined
Mar 16, 2007
Messages
1,610
I have a project truck that I am building. Its surprising how much movement you can get on a rear axle both front to back and side to side. I used the Gyraline app to establish the thrust angle. When I was finished aligning it I dropped some points to the floor from the wheel centerlines and measured the wheelbase left and right as well as measuring it for squareness and its spot on.
 

Milton Shaw

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Joined
Feb 11, 2011
Messages
4,857
I learned to drive on a 56 Ford wagon my dad bought new. I drove it from 64 to 74 and eventually sold it for scrap. Wish I still had it. IT had the Thunder buzzard 312 with 4 barrel on it. Only engine problems I ever had were fuel pump busted vacuum related. Still had solid lifters that had to be adjusted at 100,000 miles. I found an overdrive transmission, 3 speed manual and overdrive. That cut the engine speed at interstate travel and made the engine sound a lot better. This was the overdrive Ford built on the transmission that shifted when you let up on the gas and then down again if over 40mph.
 

signcrafter

Well-known member
Joined
May 9, 2012
Messages
12,540
I restore old cars and put updated suspension and drivetrain in them. These are cars with a solid rear axle, so only a front end alignment is needed and lots of these cars have wheel wells that make it difficult to mount the 4 required alignment sensors that come on today's alignment machines. After doing a little investigation, I bought a DIY front end alignment kit from AutoSolo (www.autosolotools.com) and just completed an alignment on my 56 Ford Wagon project. Wow! I'm impressed with the quality of the tools and the price. Right now, I have one more car to align after it comes out of the upholstery shop. I figure the tools will have paid for themselves after that because doing an alignment on an old car like this can get time consuming since it's never been aligned. I wish I had bought these a long time ago because I had much rather do it myself.
Which kit or what all did you buy to do your alignment?
 
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