The Ford Barn

Dave Castle · 08-08-2018, 06:06 PM

What is the arm number for the 40 pickup front shocks ?

russcc · 08-08-2018, 06:26 PM

Dave, the front shocks for the '40 pickup are the same as the passenger. The green bible # for that shock absorber assembly is O1A-18046-A, LH, fits '35-41, pass & comm. (pickup). The bible has no separate # for the arm that I can find. Kube may chime in with his view. Russ

Kube · 08-08-2018, 08:39 PM

Quote:

Originally Posted by Dave Castle

What is the arm number for the 40 pickup front shocks ?

Dave, You'll want to find them with the #F-837 on the arm. Also on the arm, there will be a boss near the hole for the shock link. In raised numerals (not stamped) will be the number 10. Mercury shocks will not have this number.
And lastly, there is a Ford script on each arm.

The bodies, just like the rear shocks are 2 7/8" diameter.

Dave Castle · 08-09-2018, 10:00 PM

The shocks on the front have # 837 on the arm & they do not line up with the eye on the axel. So I am to assume these are incorrect ?

Kube · 08-10-2018, 06:50 AM

Quote:

Originally Posted by Dave Castle

The shocks on the front have # 837 on the arm & they do not line up with the eye on the axel. So I am to assume these are incorrect ?

Dave, That's the correct arm. I am not certain why they don't line up. Cars with a factory sway bar used a 4" link. Without a sway bar, a 3" link.

Dave Castle · 08-10-2018, 09:11 AM

Sponsored Links (Register now to hide all advertisements)

Can the arms be heated & bent to line up correctly ?

Kube · 08-10-2018, 11:06 AM

Quote:

Originally Posted by Dave Castle

Can the arms be heated & bent to line up correctly ?

I've seen it done but still, I have to wonder what happened with your that they don't fit. Picture???

Dave Castle · 08-10-2018, 11:53 AM

Pic: Arm does not line up with eye on axel ? Other side is not as bad, but not perfect .

Dave Castle · 08-10-2018, 07:50 PM

Any ideas ?

Kube · 08-10-2018, 08:58 PM

Quote:

Originally Posted by Dave Castle

Any ideas ?

Dave, That arm looks correct.

Dave Castle · 08-10-2018, 09:39 PM

It is not supposed to line up with the one one the bottom ?

TJ · 08-12-2018, 09:24 AM

In your photo it looks like you have the early style wishbone pins. The shock mount hole is centered over the pin. The later style pins that are set up for the sway bar mount have the shock mount hole farther to the rear of the pin. I suspect the there may be a difference in shock arms for the early vs late wishbone pins.

Kube · 08-12-2018, 10:04 AM

Quote:

Originally Posted by TJ

In your photo it looks like you have the early style wishbone pins. The shock mount hole is centered over the pin. The later style pins that are set up for the sway bar mount have the shock mount hole farther to the rear of the pin. I suspect the there may be a difference in shock arms for the early vs late wishbone pins.

There is no difference...

Dave Castle · 08-12-2018, 11:54 AM

I appreciate all the responses, however I still do not understand why they do not line up if I have the correct arm, HELP !!!

Kube · 08-12-2018, 12:31 PM

Quote:

Originally Posted by Dave Castle

I appreciate all the responses, however I still do not understand why they do not line up if I have the correct arm, HELP !!!

Dave, I'll do my best to get at this definitively today or perhaps tomorrow. Unfortunately, I no longer recall all of these minute details as readily as I once did.

Kube · 08-12-2018, 03:48 PM

Dave,
I only had one '40 around here that I was able to get a decent (comparable) photo of.

I can't explain the issue with your truck as it appears the shock has the correct arm.
Rest assured the arms were identical throughout 1940 production regardless of whether there was a sway bar or no sway bar or (of so equipped) which design of sway bar.

Does the other side have the same issue on your truck?

Dave Castle · 08-12-2018, 04:59 PM

Both sides have the issue, however the passenger side is only about half as bad . Looks like your shock has some type of a spacer behind it ?

Kube · 08-12-2018, 08:06 PM

Quote:

Originally Posted by Dave Castle

Both sides have the issue, however the passenger side is only about half as bad . Looks like your shock has some type of a spacer behind it ?

No spacer.
Could you measure the offset of your perch pin? Centerline of the pin itself to the center line of the link hole.

Wild question... is the spring centered in the cross member?

Perhaps you could accurately measure from the frame to the "face" of the shock body?

Dave Castle · 08-12-2018, 08:20 PM

3 & 7/32 from back of shock to face, yes spring center bolt is in the crossmember correctly. If I understand the first question, approx. 1/4"

Kube · 08-31-2018, 09:33 AM

Dave, Just yesterday I'd installed a set of front shocks to a '40 I am restoring and found the alignment between the arm and perch is slightly offset. It all went together nicely.
So, be assured what you have is A-Ok

08-08-2018, 06:06 PM	#1
Dave Castle Senior Member Join Date: Jun 2017 Location: Carmel, Ca Posts: 269	1940 front pickup shocks What is the arm number for the 40 pickup front shocks ?

08-08-2018, 06:26 PM	#2
russcc Senior Member Join Date: May 2010 Posts: 2,871	Re: 1940 front pickup shocks Dave, the front shocks for the '40 pickup are the same as the passenger. The green bible # for that shock absorber assembly is O1A-18046-A, LH, fits '35-41, pass & comm. (pickup). The bible has no separate # for the arm that I can find. Kube may chime in with his view. Russ

08-09-2018, 10:00 PM	#4
Dave Castle Senior Member Join Date: Jun 2017 Location: Carmel, Ca Posts: 269	Re: 1940 front pickup shocks The shocks on the front have # 837 on the arm & they do not line up with the eye on the axel. So I am to assume these are incorrect ?

08-10-2018, 09:11 AM	#6
Dave Castle Senior Member Join Date: Jun 2017 Location: Carmel, Ca Posts: 269	Re: 1940 front pickup shocks Sponsored Links (Register now to hide all advertisements) Can the arms be heated & bent to line up correctly ?

08-10-2018, 07:50 PM	#9
Dave Castle Senior Member Join Date: Jun 2017 Location: Carmel, Ca Posts: 269	Re: 1940 front pickup shocks Any ideas ?

08-10-2018, 09:39 PM	#11
Dave Castle Senior Member Join Date: Jun 2017 Location: Carmel, Ca Posts: 269	Re: 1940 front pickup shocks It is not supposed to line up with the one one the bottom ?

08-12-2018, 09:24 AM	#12
TJ Senior Member Join Date: May 2010 Location: Napa,California Posts: 6,035	Re: 1940 front pickup shocks In your photo it looks like you have the early style wishbone pins. The shock mount hole is centered over the pin. The later style pins that are set up for the sway bar mount have the shock mount hole farther to the rear of the pin. I suspect the there may be a difference in shock arms for the early vs late wishbone pins.

08-12-2018, 11:54 AM	#14
Dave Castle Senior Member Join Date: Jun 2017 Location: Carmel, Ca Posts: 269	Re: 1940 front pickup shocks I appreciate all the responses, however I still do not understand why they do not line up if I have the correct arm, HELP !!!

08-12-2018, 04:59 PM	#17
Dave Castle Senior Member Join Date: Jun 2017 Location: Carmel, Ca Posts: 269	Re: 1940 front pickup shocks Both sides have the issue, however the passenger side is only about half as bad . Looks like your shock has some type of a spacer behind it ?

08-12-2018, 08:20 PM	#19
Dave Castle Senior Member Join Date: Jun 2017 Location: Carmel, Ca Posts: 269	Re: 1940 front pickup shocks 3 & 7/32 from back of shock to face, yes spring center bolt is in the crossmember correctly. If I understand the first question, approx. 1/4"

08-31-2018, 09:33 AM	#20
Kube Senior Member Join Date: May 2010 Location: Wisconsin, USA Posts: 8,996	Re: 1940 front pickup shocks Dave, Just yesterday I'd installed a set of front shocks to a '40 I am restoring and found the alignment between the arm and perch is slightly offset. It all went together nicely. So, be assured what you have is A-Ok __________________ "I can explain it for you. However, I can't understand it for you".