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Gard,n Mast'r Jr. transmission disassembled for inspection.


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#1 classic ONLINE  

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Posted May 01, 2015 - 09:37 AM

I cleaned the heavy gunk and oil from the transmission and disassembled it to check for any issues. Everything looks to be in good shape, so now it's time to clean the individual parts and assemble the transmission. The threaded holes in the case need to be clean and dry since thread sealer will be used. I have the output shaft seal ordered, but the input seal is not a standard Dodge part. The input shaft was turned down and key cut by the people that adapted this late 30's Dodge transmission for use in these tractors. I haven't had any luck so far finding a new input shaft seal to fit the 2.5" bore and .75" input shaft. The seal I removed is a National brand seal, but the part number was rubbed away by the sprocket that goes on the input shaft. I'll be talking with the salesman from Motion Industries that we get parts from at work and see what he can come up with. The old seal didn't leak, so I can use it if it comes down to it. This is a simple transmission to work on and there are still parts available for them from various vendors. Luckily I don't need any parts other than seals and gaskets and there is no rust damage to anything.

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Edited by classic, May 01, 2015 - 09:39 AM.

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#2 classic ONLINE  

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Posted May 01, 2015 - 12:11 PM

I used a wire wheel to clean the paint off of these parts,but I'll hit them with the sand blaster then wash them down with hot soap and water. I'll have the transmission back together this weekend and I'll install the shaft seals later. I'll move on to finishing cleaning up the rear end parts and brake components. I ordered new brake linings for the shoes and I'll rivet them on when they get here. The linings I ordered are for 10" drums. The brake drums cleaned up real good and there is no wear ridge from the brake shoes. The original brake shoes weren't that bad, but they were oil soaked.

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Edited by classic, May 01, 2015 - 04:04 PM.

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#3 classic ONLINE  

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Posted May 03, 2015 - 03:50 PM

Well I sand blasted and cleaned the transmission housing parts today. After cleaning the roller bearings for the tail shaft and input shaft, they became a little loose and make noise when you spin them. I actually had a new tail shaft bearing, so I found and ordered the two input shaft bearings. Here are the bearing part numbers.
Front input shaft bearing SKF 6304z
Rear input shaft bearing MRC 207 SFG
Output shaft bearing New Departure 3207 ND

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#4 trowel OFFLINE  

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Posted May 03, 2015 - 05:41 PM

Been a while since I have disassembled a 3 and 4 speed tranny, looking good Jim, keep it rolling.


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#5 classic ONLINE  

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Posted May 03, 2015 - 06:46 PM

Thanks Jesse, these old transmissions are built pretty well. I forgot how much I dislike sand blasting, but it does a great job cleaning stuff up. I want to get this Garden Master done, then it's back to the Mighty Mite.
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#6 trowel OFFLINE  

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Posted May 03, 2015 - 08:18 PM

Nice ! hard to beat the simplicity of the old trannies. A real cluster is my grandmothers Band type from the 1918 Ford T, nothing like it save early Dodge. Sand in everything no matter what, I do like it too next to bead blasting.

 

I was looking for the Mighty one, looking forwards.


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#7 classic ONLINE  

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Posted May 16, 2015 - 01:56 PM

Ok, so after cleaning parts and checking for wear, I found that I should replace a few things before reassembly. I came across a kit that includes new thrust washers, bearings and snap rings. I also found a broken inside splined lock ring that was extremely difficult to find. I finally found one and ordered it. I also ordered the two input shaft bearings after cross referencing the old bearings to get the best deal. I'm working on the rear end now while I wait for the parts for the transmission to get here.

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