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lowering a 29 Model A, but how?!

20K views 14 replies 9 participants last post by  Henry Highrise  
#1 ·
I bought this nice '29 Roadster last week and the consensus is that it is set a little too high.

Someone posted on another thread that he would need to see better pictures of the suspension to make a recommendation as how to lower it. Hence this thread!

I have never owned a rod before so I am a little lost when it comes to lowering it.

As always, any feedback welcome!

Thanks,
Paul
 

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#3 ·
Looks like a nice ride!

As to how to lower it. It appears to have a 2" dropped axle at the present. Get a 4" dropped axle and a front spring with reversed spring eyes. That will drop the front about an additional 3" from where it is now.

The rear is somewhat different. You could remove a coil or two from the rear springs. That would be the cheapest and quickest way to drop the rear some. A better but much more involved method would be to "Z" the rear frame section and change the rear suspension. Lot of work here and since you just bought this ride; I'd suggest you drive it for a while as it is and ENJOY!!!

You could also channel the body over the frame. Again; lot of work but something to think about.
 
#5 ·
pcoghlan said:
thanks for the input

I assume it would look a little silly dropping the front 3" unless I were to be able to bring the back down at the same time
Not necessarily. Personally, I wouldn't be concerned about what everyone else thinks. If you like it; then thats enough. I like the way it looks at present. :D
 
#8 ·
I think I would check your front shocks. They look like they may be compressed in the normal ride hieght. I wonder how much free travel they have?

Measure the spacing from eye bolt to eye bolt and remove the shock compress and see what the spacing is. I may be possible the you are close to bottomed out on the shocks.

Compressed shocks will reduce the travel of the front suspension and effect the ride.

Another thing to do is remove a spring (front). But I think that will require you to change your shock situation. Removing a spring will change the softness of the ride. I do not own a straight axel car so one of the other guys here will be better informed on your ooptions as far as the spring goes.
 
#10 ·
Another quick way to lower the front is to go with smaller wheels/tires. The rear end will take a bit of adjusting to make it lower. It looks like the four bar mount for the rear end is already so low that any shortening of the rear coils will put those mounts below the scrub line and if you had a flat tire the mount would dig into the road. As you drop the rear end those mounts will have to move up.

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#12 ·
I didn't read all the replys, so someone else has probably already made these suggestions,,[ if so I apologize,,,,] but You might be able to drop it about 1" or so in the rear by cutting 1 coil off the spring, that usually get about 11/2 ", just be sure you still have enough travel between the axle and the frame, for the front, the shocks DO look like they might be bottoming out,like Evitwin mentioned,, stand on the front X member and see if they bottom out,,, then try taking the 2 shortest [ top leafs or the top and 3 one] out of the front spring, you might have to replace the thickness of the springs with a spacer of the same thickness to make sure that the bolts tighten up on the spring after removing the 2 leafs, this should get you a inch or so ,again,, make sure of the clearance between the frame and axle, and keep a eye on the rear hangers for the 4 bar, nice ride you got for a few bucks,, have fun you will love the new found thrill,,, Bill :thumbup:
 
#14 ·
dropping an A

We are in the middle of rebuilding an older 28 sedan. We also wanted it lower. The easiest way was to weld in a new rear coil over upper mount. We just added a taller mount , which lowered the frame closer to the axel. It's goint to be close to bottoming out on the rear axel, but looks like it will work. we will have to relocate the exaust below the rear axel,it would definetly get pinched if we left it on top ( assumeing it doesn't pinch now, it looks like you could lower it the dimension of the exhaust and clear everything, unless you don't like the exhaust below the axel.) anything more than a couple of inches in the back will require a Z frame or channeling. Several options for the front. The reverse eye main spring is good for about 1.5 inches. Each leaf removed is 3/8 plus sag, about 1/2 inch. Also the bigger drop axel as mentioned. Yes, those require reviewing the shock travel and maybe replacing. No one has mentioned the dropped spindle approach. You can replace the front spindles with a 2 or 3 inch drop spindle and nothing about the ride, handling, shocks, etc. is affected. Good luck