2 Speed axle
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Logistics Pro
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From: Upper Left Coast
2 Speed axle
Does anyone know what kind of axle this might be?
I.E is it an Eaton 1350 etc?
Also can anyone think of a reason why I would NOT want vacuum shifting vs electric shifting?
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=8044587443&indexURL=0# ebayphotohosting
Thanks,
Rick
I.E is it an Eaton 1350 etc?
Also can anyone think of a reason why I would NOT want vacuum shifting vs electric shifting?
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=8044587443&indexURL=0# ebayphotohosting
Thanks,
Rick
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From: NM
Interesting piece; I know nothing about it. But I'm curious, from the location of the vacuum can, I would assume that these use a planetary gearset on the pinion to achieve two-speed operation? And the vacuum can pulls on a band, like in an automatic?
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From: Upper Left Coast
The ad says it's for up to 54. I'd say it's a late 40's unit.
I think the vacuum actuator just moves the control rod for gear shifting.
I have sent him a note asking howmany lugs and models numbers etc. If it's an Eaton the ratio should be stamped on the pumpkin somewhere.
I think the vacuum actuator just moves the control rod for gear shifting.
I have sent him a note asking howmany lugs and models numbers etc. If it's an Eaton the ratio should be stamped on the pumpkin somewhere.
Originally Posted by ALBUQ F-1
Interesting piece; I know nothing about it. But I'm curious, from the location of the vacuum can, I would assume that these use a planetary gearset on the pinion to achieve two-speed operation? And the vacuum can pulls on a band, like in an automatic?
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From: Upper Left Coast
Hi Joe,
I finally got an email from him.
First of all.....(my mistake!!
.)..It's a Chevy! Evidently they used quite different axles. It's not an Eaton.
btw, I found a 54 F-600 locally. ... but the guy wants to sell me the whole truck! He wants $900 for it.
I'm thinking about offering him $500 or $600.
I haven't looked at it very closely but it does have a 2 speed and it's got (he said) a Lincoln engine in it. I haven't determined if it's original or if it's someones project. It does run but I don't know if it's got brakes etc.
I'm thinking that I could just swap the axles and then sell it........I don't know anyone around here that's into old trucks......I don't want to be stuck with this old truck! (I'm already stuck with one!!!
)
What do you think?
I finally got an email from him.
First of all.....(my mistake!!
.)..It's a Chevy! Evidently they used quite different axles. It's not an Eaton.btw, I found a 54 F-600 locally. ... but the guy wants to sell me the whole truck! He wants $900 for it.
I'm thinking about offering him $500 or $600.
I haven't looked at it very closely but it does have a 2 speed and it's got (he said) a Lincoln engine in it. I haven't determined if it's original or if it's someones project. It does run but I don't know if it's got brakes etc.
I'm thinking that I could just swap the axles and then sell it........I don't know anyone around here that's into old trucks......I don't want to be stuck with this old truck! (I'm already stuck with one!!!
)What do you think?
Originally Posted by wmjoe1953
Kinda prehistoric looking. Might be worth checking out in further detail.
Last edited by HT32BSX115; Mar 8, 2006 at 12:06 PM.
Cargo Master
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From: Oregon
If it is indeed an original lincoln motor, then it would be an F-700 +. Verify the size. I may be interested if it's a Big Job. I still need fenders. I still don't have any means to transport anything. Money has been tight again, and we are having trouble staying above water.
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From: Upper Left Coast
I'm pretty sure it's an F-600.
I'll bet someone swapped out the engine back when I was in grade school or something. I'm gonna go over there when I can and look it over real closely. I'll let you know what I find out.
I'll bet someone swapped out the engine back when I was in grade school or something. I'm gonna go over there when I can and look it over real closely. I'll let you know what I find out.
Originally Posted by wmjoe1953
If it is indeed an original lincoln motor, then it would be an F-700 +. Verify the size. I may be interested if it's a Big Job. I still need fenders. I still don't have any means to transport anything. Money has been tight again, and we are having trouble staying above water.
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Cargo Master
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From: Oregon
OK. I'll keep my fingers crossed that it's a Big job. They've got pretty heavy two speed axles in them too. I've still got this 3 speed auxilliary trans if you want to go that route instead.
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From: Upper Left Coast
You still have that 2 speed in the 53 F-600 fuel hauler too don't you?
Let me know when it gets warm enough to go out and have a look at the casting. I'm hoping that it's a 5.83/8.11:1 ratio.
I'd be willing to bet that it will take less time for me to drive there and get that axle than it will take to swap 2 axles in two trucks and then get rid of the unwanted truck!
Let me know when it gets warm enough to go out and have a look at the casting. I'm hoping that it's a 5.83/8.11:1 ratio.
I'd be willing to bet that it will take less time for me to drive there and get that axle than it will take to swap 2 axles in two trucks and then get rid of the unwanted truck!
Originally Posted by wmjoe1953
OK. I'll keep my fingers crossed that it's a Big job. They've got pretty heavy two speed axles in them too. I've still got this 3 speed auxilliary trans if you want to go that route instead.
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I have not had any problems shifting my vacuum two speed. It works great. Unless you get the check valve and all the piping to go with it, It might be easier to go electric. Keep in mind you will need a speedometer out of a two speed truck as well if you want it to be acurate.
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From: Oregon
not yet
Originally Posted by HT32BSX115
You still have that 2 speed in the 53 F-600 fuel hauler too don't you?
Let me know when it gets warm enough to go out and have a look at the casting. I'm hoping that it's a 5.83/8.11:1 ratio.
I'd be willing to bet that it will take less time for me to drive there and get that axle than it will take to swap 2 axles in two trucks and then get rid of the unwanted truck!
Let me know when it gets warm enough to go out and have a look at the casting. I'm hoping that it's a 5.83/8.11:1 ratio.
I'd be willing to bet that it will take less time for me to drive there and get that axle than it will take to swap 2 axles in two trucks and then get rid of the unwanted truck!
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From: Upper Left Coast
I'll need the speedometer switch right? Isn't there some kind of gear shift for the speedometer that switches when you shift gears?
Actually my plan is to get an programmable electronic speedometer (and other gages) and just switch the jumpers with an additional switch when shifting.assuming it uses a "DIP" switch for programming
I don't think I'd have any problem re-plumbing my truck. I'm going to replace all the brake, fuel and vacuum lines when I take it apart.
I'll use a good vacuum pump and a good size vacuum tank for a reserve.
Now I just need to find a vacuum shift axle!
Actually my plan is to get an programmable electronic speedometer (and other gages) and just switch the jumpers with an additional switch when shifting.assuming it uses a "DIP" switch for programming
I don't think I'd have any problem re-plumbing my truck. I'm going to replace all the brake, fuel and vacuum lines when I take it apart.
I'll use a good vacuum pump and a good size vacuum tank for a reserve.
Now I just need to find a vacuum shift axle!
Originally Posted by F6Guy
I have not had any problems shifting my vacuum two speed. It works great. Unless you get the check valve and all the piping to go with it, It might be easier to go electric. Keep in mind you will need a speedometer out of a two speed truck as well if you want it to be acurate.
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From: Oregon
A possible problem to consider.....is your engine going to be able to produce enough vacuum to operate the switch efficeintly? Are you going to be keeping the stock motor? The vacuum accessories were never very reliable or efficeint on them older trucks. Do you have a vacuum canister? I wonder if the flow could be reversed, and if the switch could be activated with compressed air. I don't know, I guess I am trying to think of the vacuum activated accessories problems.
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From: Upper Left Coast
The engine I am planning to use will produce no usable vacuum at all.....It'll be a Cummins 6BT.....no throttle plate ...so no vacuum.
It will have a vacuum pump on it though. I already have a vacuum tank on the truck. It's about a 3 gallon size or so. With a vacuum pump and the tank I think it will do the job...Even with a vacuum pump it probably wouldn't be enough without the tank. Most of those pumps won't produce the volume that a gas engine will do.
Since I'm not using the brake booster when shifting the vacuum should build back up pretty quickly after shifting for brake actuation when needed....even so shifting shouldn't deplete the vacuum enough to preclude using the Vacuum booster. I get several brake actuations after shutting down the engine indicating that the tank I have is adequate to make up the slack.
It will have a vacuum pump on it though. I already have a vacuum tank on the truck. It's about a 3 gallon size or so. With a vacuum pump and the tank I think it will do the job...Even with a vacuum pump it probably wouldn't be enough without the tank. Most of those pumps won't produce the volume that a gas engine will do.
Since I'm not using the brake booster when shifting the vacuum should build back up pretty quickly after shifting for brake actuation when needed....even so shifting shouldn't deplete the vacuum enough to preclude using the Vacuum booster. I get several brake actuations after shutting down the engine indicating that the tank I have is adequate to make up the slack.
Originally Posted by wmjoe1953
A possible problem to consider.....is your engine going to be able to produce enough vacuum to operate the switch efficeintly? Are you going to be keeping the stock motor? The vacuum accessories were never very reliable or efficeint on them older trucks. Do you have a vacuum canister? I wonder if the flow could be reversed, and if the switch could be activated with compressed air. I don't know, I guess I am trying to think of the vacuum activated accessories problems.
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There is a little diaphram connected to a transmission on the back of the speedometer, Whenever the truck is in high range vacuum is applied to the diaphram changing the ratio in the rear axle and the speedometer. I can e-mail you a picture of the check valve/switch and plumbing if you would like. I had a spare rear axle but I already gave it away, I know were another is located but getting it to you would probly cost a small fortune.