Looking for frame specs on my 521

[cjzeppy]

I'm planning to fix the rear frame rails on my 521, but I want to make sure that they are correct and within specification. Normally I would look up on the computer at my shop, but this is a much older vehicle, and may not have records. Has anyone measured the dimensions of there frame, or know someone who has? I just need the rear section of the frame. Thanks!

[DatWifey]

We have a bed off a frame right now.  What are you wanting measurements on?  Give me specifics, and I can try to help you out.

[cjzeppy]

We have a bed off a frame right now.  What are you wanting measurements on?  Give me specifics, and I can try to help you out.

 

If you could measure the frame rails from the body mount locations (length, width, and cross measurements). Also if you could take pictures of the frame rails by the rear axle, and where the center bar where the shocks mount to. Mine is completely rusted off of the frame. Thank you.

[Charlie69]

Not sure this will help

 

521 Short Bed

 

 

 

521 Long Bed

 

[cjzeppy]

Thanks Charlie but I'm looking for the actual dimensions of the frame, and measurements at certain locations. But that is somewhat useful.

[DatWifey]

Sorry, I haven't forgotten.  I will try to get some pics and such uploaded for you tomorrow.... hopefully :)

[wayno]

I have 2 rear frame sections out back, give me a exact description of what point you want me to measure from, and to what point, you need to tell me exactly how you want it measured, from a center of a hole to a center of another hole?

I cut these frames off just in front of the front leaf mounts, so everything in front of them is gone.

 

One of them still has the front and rear leaf mounts still on it.

[DatWifey]

So that I can say mount 1, or 2 etc and we're on the same page

 

This is my measurement reference point.  It sits just under the lip of the back of the cab

 

Distance to a head bolt dropped through the center of the bed bolt hole

 

Measuring from the inner edge of the pass side mount to the inner edge of the driver's side of #1 (This is the same distance for #2 as well)

 

Distance between 1 & 2

 

It's kind of hard to get a decent measurement from 2 to 3.  So, distance from 3 to 4

 

 

Width from inner edge of pass side to driver's side #3

 

Width from inner edge of pass side to driver's side #4

 

Depth of the bed bolt hole

 

Measurement from mount #4 to the end of the fame

 

Measurement from inner edge of frame

 

And the cross-section with the shock mounts

 

 

 

 

 

[Oyamum]

How do you guys understand those measuring tapes? Lol I thank god for the metric system haha

 

Good luck mate

[cjzeppy]

Thanks Datwifey I'm planning to soon take off my bed and reveal all the rust thats hidden. And Oyamum its easier to go from SAE to Metric.

[cjzeppy]

Hey Datwifey can you get a measurement from point 1 to say point 5 (the rear bed bolt location)? I deleted points 2 & 4, but I need a full length measurement, and also if I can ask for a cross "X" measurement with points 1 and 5. Thanks.

[wayno]

That's to bad, I have that other rear frame out back, but I cut it off between #1 and #2 mount points, number #1 mount points are gone, and your #2 mount points are gone. :(

Measure mount points on your box, it's likely easier to do it that way anyway. :)

[Elkie]

This might be helpful

[Charlie69]

Elkie that is the diagram I was trying to find.

[cjzeppy]

Thanks gang, but I could really use a measurement from the first bed mount location to the last one. The overall length of those two points and across to make an "X"

[Elkie]

From front mount to back would be 250 + 597 + 232 = 1079mm After that you lost me, the front mounts are out side, back mounts inside the frame so measurements across would be different. front would be 540x2= 1080mm back would be 425x2= 850mm