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08-08-2020, 10:49 PM | #1 |
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4 inch drop axle, front for 31 A
Seems to me that several folks have replaced the front axle with a 4 inch dropped axle and taken a leaf out of the rear spring to make their coupes look like the period hot rods had. Where do you find the axle? I was looking at my coupe as it sits and it appears there is 8 inches from the top of my 600 X 16 front tire to the underside of the fender. Close to that on the rear. Any suggestions and thing to not do?
Thanks, Dave Mc Arthur |
08-08-2020, 11:17 PM | #2 |
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Re: 4 inch drop axle, front for 31 A
speed way motors has the axles, you want be careful on the drop. it can mess with the tie rod. I have a good contact with them. that is pretty savvy on setting front axles up.
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08-09-2020, 01:30 AM | #3 |
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Re: 4 inch drop axle, front for 31 A
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08-09-2020, 10:02 AM | #4 |
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Re: 4 inch drop axle, front for 31 A
Here's an old thread with a lot of info.
https://www.fordbarn.com/forum/showthread.php?t=12576 |
08-09-2020, 10:42 AM | #5 |
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Re: 4 inch drop axle, front for 31 A
Speedway Motors. Their prices are better than most, and good to deal with. I put a Model T spring in the rear of my widebed. In my tudor I removed the top 4 leaves except for the top one, it is needed as it is contoured to match the cross-member.
Last edited by Jim Brierley; 08-09-2020 at 10:45 AM. Reason: added info |
08-09-2020, 11:04 AM | #6 |
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Re: 4 inch drop axle, front for 31 A
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08-09-2020, 11:42 AM | #7 |
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Re: 4 inch drop axle, front for 31 A
Are you running juice or mechanical brakes?
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08-09-2020, 02:05 PM | #8 |
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Re: 4 inch drop axle, front for 31 A
Stock A suspension with a "rubber rake"..205/55r16 front,225/75 r16 rear..
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08-09-2020, 04:15 PM | #9 |
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Re: 4 inch drop axle, front for 31 A
By using a '32-'36 front axle and a Posies reversed eye spring I lowered my car 3". You either have to heat and bend the tie rod arms on the spindle or use Jeep tie rod ends to clear the wishbone.
Posies can also sell you a spring that will drop the car 2" by its self.
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08-09-2020, 05:04 PM | #10 | |
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Re: 4 inch drop axle, front for 31 A
Quote:
I'm curious about the Jeep Tie Rod ends solution? I have a '32 front axle which drops the front about 1.5 inches, but on sudden bumps, the tie rod taps the chassis and I haven't found a solution to dropping the tie rod 1.5 inches? Any other suggestions that doesn't include goose necking the tie rod? |
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08-09-2020, 07:09 PM | #11 |
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Re: 4 inch drop axle, front for 31 A
Tie rod function gets dicey the further you are away from the line of the king pin..drop too much below the lower king pin bushing and bump steer increases, the spindle gains leverage on the tie rod.
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08-09-2020, 10:10 PM | #12 |
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Re: 4 inch drop axle, front for 31 A
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08-09-2020, 11:19 PM | #13 |
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Re: 4 inch drop axle, front for 31 A
Over on the H.A.M.B. nailheadroadster made a number of posts in the summer of 2018 outlining work that he did on his 29... with a very detailed description of how he lowered his car including pictures and a parts list.
https://www.jalopyjournal.com/forum/...my-29.1114472/ Here is what he used for the front: 1) 33 Ford axle 2) 32 Ford spindles 3) 32 Ford spring perches 4) Posies 2" front lowering spring (part # 1002L) 5) Stock Model A Ford kingpins 6) Stock Model A Ford brake actuators 7) Stock Model A Ford shackles 8) Stock Model A Ford wishbone 9) 1/4in spacers (2) These go between the TOP of the axle and the wishbone (VERY important!) 10) 32 spindle bolt bushing (reamed to spindle size after installation) 11) 32 spindle bolt rebuild kit, with new bearings 12) 1 ½” shorter pitman arm (this is not required, but definitely helps to ease steering effort) In the back he used a Model T spring with couple of leaves removed off the top and a couple of alternating leaves after that leaving him with five T leaves total... |
08-10-2020, 03:53 AM | #14 |
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Re: 4 inch drop axle, front for 31 A
I had Okie Joe drop, and stretch my stock front axle, reverse eye leaf, ‘32 spring perches, and ‘37 Willys tie rod ends, so I could use my stock tie rod. Oh, and a T rear spring
Last edited by Johnny Nitro; 08-10-2020 at 03:59 AM. |
08-17-2020, 10:07 PM | #15 |
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Re: 4 inch drop axle, front for 31 A
Thanks Chris #12 What I can't tell from the photo is whether the Jeep tie-rod end comes with it's own ball and therefore requires the replacement of the original Model A ball? I have already replaced the balls on the ends of the steering arms with new balls welded in place.
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12-29-2020, 07:13 AM | #16 |
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Re: 4 inch drop axle, front for 31 A
I’m interested in Jeep tierod question as well. Any more pics?
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12-29-2020, 12:18 PM | #17 |
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Re: 4 inch drop axle, front for 31 A
Also, what year(s) Jeep?
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12-29-2020, 03:34 PM | #18 |
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Re: 4 inch drop axle, front for 31 A
After I posted the picture I found that my supplier had replaced the Jeep parts I ordered with 1948-1964 Ford Pickup tie rod ends. I see that Speedway has them.
https://www.speedwaymotors.com/Speed...nds,50152.html
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12-30-2020, 11:10 AM | #19 | |
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Re: 4 inch drop axle, front for 31 A
Quote:
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