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Jeds

New guy with B61 question

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Hi, Awesome site here, looks like a lot of information is held here. My first of many question to come. Just brought home a 1965 B 61 twin screew I has the 5 speed main but it seems like the aux is a 3 speed it will not shift over left and up. Could this be right? There is no shift pattern plate.

Thanks

J

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Sounds like Triplex. Look at drivers side of transmission for model number.

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if it's a Triplex,over left and back is lo,right and back is direct,right ahead is hi,

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Hi Thanks for the repys. I will see if I can find the numbers on the trans in the next day or so. I will post them when I find them.

If it is a triplex is there any combination I should avoid using?

My profile pic is a pic of the truck I am asking about.

Thanks again for your help.

Jim

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That's the truck that was in Ottumwa,IA. Where are you located?

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Yes it is. Just south of town

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make sure you bring it to the truck show June 13th at the park

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If it is a triplex is there any combination I should avoid using?

The gear ratios are fairly progressive. Depending on which transmission number you have, there may be some overlap or redundant gear ratios.

Check out this link. Open the pdf up, scroll down with your trans number and it will give the ratios in each gear.

http://www.bigmacktrucks.com/index.php?/tutorials/article/37-b-model-transmission-data/

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If a double OD version things are a bit different compared to single OD version. The model number will tell all.

IE: TRT 722 is single over. TRT 7220 is double over.

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Thanks for all the information. I will look for the numbers and let you know as soon as I can get them.

Thanks again for the help.

Jim

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Superdog, i tried to send you a message about the June 13th show. I don't think it sent it.

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Superdog, i tried to send you a message about the June 13th show. I don't think it sent it.

I got it and sent a reply. PM's have been hit and miss lately so if you didn't get my response,let me know.

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Hi Mike, I enjoyed visiting with you at the show in Ottumwa. Hope to see you again sometime.

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