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What U joints for my '57 Panel?
#1413045 Tue Jun 08 2021 01:01 AM
Joined: Jan 2020
Posts: 473
P
'Bolter
I know my truck was originally a 6 cylinder. I keep reading that there are different U joint sizes for some trucks that had "heavy duty" transmissions. Anyone know which ones I need?

I need to replace my PG rear seal, and thought it might be good to do the U's while the driveshaft was out.


1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
Re: What U joints for my '57 Panel?
pan3lman #1413072 Tue Jun 08 2021 09:25 AM
Joined: Apr 2016
Posts: 127
A
ASU Offline
'Bolter
My experience has been that U joints are fairly generic. Pull the old one out and take it to NAPA, or an "old" parts store. they will measure cap diameter and distance across the caps, and give you the correct one. If you want to measure yourself, do a quick internet search for universal joint dimensions. https://www.currieenterprises.com/understanding-u-joints

As with all of our trucks, you never know what was changed since new!

Jon

Re: What U joints for my '57 Panel?
ASU #1413126 Tue Jun 08 2021 04:34 PM
Joined: Jan 2020
Posts: 473
P
'Bolter
Originally Posted by ASU
My experience has been that U joints are fairly generic. Pull the old one out and take it to NAPA, or an "old" parts store. they will measure cap diameter and distance across the caps, and give you the correct one. If you want to measure yourself, do a quick internet search for universal joint dimensions. https://www.currieenterprises.com/understanding-u-joints

As with all of our trucks, you never know what was changed since new!

Jon

Very true. In my area, most of the "old" parts stores are gone. I have to deal with AutoZone and Advance Auto. Sometimes Pep Boys works as well, but they seem to be going under frown


1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
Re: What U joints for my '57 Panel?
pan3lman #1413127 Tue Jun 08 2021 04:44 PM
Joined: Jan 2020
Posts: 473
P
'Bolter
I just placed my order with LMC Truck. They had a pretty good diagram to help identify what my truck most-likely has. I ordered both options for the front U joint, in the event that anyone got, uh, "creative" with my truck in the past smile


1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
Re: What U joints for my '57 Panel?
ASU #1413132 Tue Jun 08 2021 05:15 PM
Joined: Jan 2014
Posts: 1,631
J
'Bolter
Originally Posted by ASU
My experience has been that U joints are fairly generic. Pull the old one out and take it to NAPA, or an "old" parts store. they will measure cap diameter and distance across the caps, and give you the correct one. If you want to measure yourself, do a quick internet search for universal joint dimensions. https://www.currieenterprises.com/understanding-u-joints

As with all of our trucks, you never know what was changed since new!

Jon

That’s what I did when I did mine. The kids at “O” or “Auto” will look at you like a pickle is growing from your forehead if you ask them to measure the U joint. But if there is a store in your town with an actual Parts guy....he will fix you up in no time.

On the other hand, if you are pretty confident that all your setup is original....then you will probably be fine with the LMC approach. I’ve had good luck with them as a supplier.

Re: What U joints for my '57 Panel?
pan3lman #1413133 Tue Jun 08 2021 05:17 PM
Joined: Jan 2020
Posts: 473
P
'Bolter
Thanks for the feedback. I'm not sure if theirs come with the grease fitting on them for lubing or not, but as rarely as I will drive this truck, I'm not overly worried about that.


1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
Re: What U joints for my '57 Panel?
pan3lman #1413144 Tue Jun 08 2021 05:57 PM
Joined: Oct 2005
Posts: 3,332
"Hey! I sound like Darth Vader!!
You could take your driveshaft to a driveshaft shop and have them check balance, replace the ujoints.

Re: What U joints for my '57 Panel?
MNSmith #1413150 Tue Jun 08 2021 06:17 PM
Joined: Jan 2020
Posts: 473
P
'Bolter
Originally Posted by MNSmith
You could take your driveshaft to a driveshaft shop and have them check balance, replace the ujoints.
Interesting suggestion- I'm not even sure where one of those would be around here.


1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
Re: What U joints for my '57 Panel?
pan3lman #1413164 Tue Jun 08 2021 07:28 PM
Joined: Jul 2000
Posts: 1,324
G
Insomniac
A good transmission shop may also do driveshafts. At least they will know where to go. Chances are that you don't have the original rear end and they could confirm that.


Gord
----
1954 1/2 ton 235 4 speed
Re: What U joints for my '57 Panel?
Gord&Fran #1413166 Tue Jun 08 2021 07:43 PM
Joined: Jan 2020
Posts: 473
P
'Bolter
Originally Posted by Gord&Fran
Chances are that you don't have the original rear end and they could confirm that.
Thanks- I'll have to get some pics of it. It does look "purdy old", though grin


1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
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