Banjo exle in a model A question

[luke72]

Hi guys i need help , i have a banjo rear axle and a millworks model T spring in model A rear frame and cross member , now the question how much should be the space between the top axle and frame, because with this spring is very low less than a inch thanks

[alchemy]

You are doing hot rod stuff, so you probably should ask this question on the HAMB.

But, I can say that it’s not usual for only one inch of clearance by using a T spring. Is that aftermarket spring made lower?

[Kurt in NJ]

With modifications it’s hard to figure what was done,what year banjo axle?— perhaps a later one with perches welded on set too wide and the spring stretched out??
post pictures

[Tim Ayers]

Originally Posted by luke72

Hi guys i need help , i have a banjo rear axle and a millworks model T spring in model A rear frame and cross member , now the question how much should be the space between the top axle and frame, because with this spring is very low less than a inch thanks

Can you post a picture? I'm assuming you are talking about the spring end. Is the main leaf reversed as well?

With stock shackles, you should be OK. You can check it by pressing down on the spring and watch it go through it's arc. If it doesn't hit, it's fine. If it does, then you need to figure something else out. You don't want it hit the top of the axle bell when it's fully compressed.

[luke72]

Originally Posted by alchemy

You are doing hot rod stuff, so you probably should ask this question on the HAMB.

But, I can say that it’s not usual for only one inch of clearance by using a T spring. Is that aftermarket spring made lower?

Yes this is a model T made as a model A width 2.5 reverse eyes will lower 3 inch the car, if used on top of the axle, i'm using spring behind the axle

Originally Posted by Kurt in NJ

With modifications it’s hard to figure what was done,what year banjo axle?— perhaps a later one with perches welded on set too wide and the spring stretched out??
post pictures

It's a 37-40 reat banjo spring behind the axle perch to perch should be 48-49" if. I remember correct, frame is not zded

Originally Posted by Tim Ayers

Can you post a picture? I'm assuming you are talking about the spring end. Is the main leaf reversed as well?

With stock shackles, you should be OK. You can check it by pressing down on the spring and watch it go through it's arc. If it doesn't hit, it's fine. If it does, then you need to figure something else out. You don't want it hit the top of the axle bell when it's fully compressed.

Yes that's a model T made to run on model A cross member in the instructions says it works also with spring behind axle that's my case and it's a reverse eyes don't want to notch a fresh boxed frame, i have seen around the rear transverse leaf spring should be 4 to 5 inch travel, i think i'm far from this a lot, but in the weekend i will make some mods and post pictures
Thanks all for the aswers

[cas3]

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your 40 axle perch is farther apart than A axle by 2 or 3 inches I believe. gonna be tough to get the shackles in place

[alchemy]

You left out the most important details. The spring behind the axle will lower it a lot, even without the reversed eyes or a T spring. I think you dug yourself a hole, literally. Too low. Put a regular A spring back in it for more axle clearance.

[Tim Ayers]

Originally Posted by alchemy

You left out the most important details. The spring behind the axle will lower it a lot, even without the reversed eyes or a T spring. I think you dug yourself a hole, literally. Too low. Put a regular A spring back in it for more axle clearance.

I use a '27 model T rear crossmember and '27 T rear spring with a non-reversed main leaf on a '40 (spring behind) banjo in my AV8 on a '32 frame.

It sits great. In fact, I'm thinking of reverse the main to lower it an 1" more.

[30Murray]

If your spring is mounted behind the axle, with a stock model a cross member, the axle will not be centered in the rear fender. I think your best fix would be to weld sping perches to the top of the axle, Millworks sells them for this purpose. Worked for my AV8.

[Tim Ayers]

Originally Posted by 30Murray

If your spring is mounted behind the axle, with a stock model a cross member, the axle will not be centered in the rear fender. I think your best fix would be to weld sping perches to the top of the axle, Millworks sells them for this purpose. Worked for my AV8.

Ah, yes. Depending what model body he has, the cross member could also be moved back. May have to extend the frame, but can be done.

Your suggestion is the easiest if planning to use the stock rear crossmember location.

[luke72]

Originally Posted by alchemy

You left out the most important details. The spring behind the axle will lower it a lot, even without the reversed eyes or a T spring. I think you dug yourself a hole, literally. Too low. Put a regular A spring back in it for more axle clearance.

yep good point lesson learned with tax shipping and other cost the spring costed me around 1000$ hope with a normal model A spring will clear the problem

[luke72]

Originally Posted by Tim Ayers

I use a '27 model T rear crossmember and '27 T rear spring with a non-reversed main leaf on a '40 (spring behind) banjo in my AV8 on a '32 frame.

It sits great. In fact, I'm thinking of reverse the main to lower it an 1" more.

do you have any pics? thanks

[luke72]

Originally Posted by Tim Ayers

Ah, yes. Depending what model body he has, the cross member could also be moved back. May have to extend the frame, but can be done.

Your suggestion is the easiest if planning to use the stock rear crossmember location.

my cross member is just point welded i can move when i want the frame is not full welded just to prevent this type of problem

[luke72]

https://streamable.com/rebk97

that's my frame it's a mix of 32 34 X member, and front and rear model A cross member

[Tim Ayers]

Originally Posted by luke72

do you have any pics? thanks

This is how the car sits with a '27 T rear spring with all the leaves and a non-reversed main using a '27 T rear crossmember. I left all of the leaves in since it is a rumble and my boys do ride back there at times.

[petehoovie]

Originally Posted by Tim Ayers

This is how the car sits with a '27 T rear spring with all the leaves and a non-reversed main using a '27 T rear crossmember. I left all of the leaves in since it is a rumble and my boys do ride back there at times.

[rich b]

Originally Posted by cas3

your 40 axle perch is farther apart than A axle by 2 or 3 inches I believe. gonna be tough to get the shackles in place

Actually, Model A spring over perch width is 49-1/2" while '35-'40 spring behind axle perches are 48" between centers.

[cas3]

Thanks Rich! Keep me inline!

[Tim Ayers]

Originally Posted by alchemy

You left out the most important details. The spring behind the axle will lower it a lot, even without the reversed eyes or a T spring. I think you dug yourself a hole, literally. Too low. Put a regular A spring back in it for more axle clearance.

Alchemy:

I run spring behind on my '32 railed AV8 roadster. I've never bottomed out even with my teenage sons in the rumble. My '28 body also overhangs the rear of the frame rails and does not sit on top of the rails. I do have oil filled cheapie shocks in the rear as well.

[alchemy]

There’s a lot of difference between the A frame and a 32 frame. The kick above the axle will give enough room with the 32. No room with the flat A frame. My brother ran into the same problem 20 years ago. I think he did a little C notch, but still doesn’t have a ton of room. And, he used a stock A spring.