ATO2612D VS AT2612D What is the Difference? Volvo I Shift Transmission
Discussion in 'Volvo Forum' started by Siinman, Jan 5, 2022.
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The one with the O is overdrive.
I-Shift Transmission; I-Shift Transmission Nomenclature And Ratios; General Information - Volvo i-shift transmission Operator's Manual [Page 8] | ManualsLibQUALITYTRUCK and Siinman Thank this. -
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No one is direct drive one spin of input one spin tail shaft usually faster diffs with this one is over drive one spin input around 1.4 spins tail shaft with slower differential ratio. Xe pck Volvo is ato with 2.64 ratio super fast 1500rpm around 80mph. At with 2.64 1500rpm around 70 to 72 mph
Siinman Thanks this. -
Can not be interchanged if they r u need someone really good with programming to make trans shift right might loose a lot of pulling power going from at to ato or loose top end going from ato to at.
best way I can explain hope this helps. -
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Not a big issue but u really have to know what you are doing in order to make it work being that also need to change programming in abs module and also vecu and Ecm Volvo dealer is no help they have never seen #### like this. On top of everything you need to make sure ratios work together mechanically if u put at with 3.23 you won’t be able to get over 60 mph without blowing pistons out of block. So there is a lot of things that need to be looked at but technically it would could be done I’ve done it a few times people wanted more pulling power and less speed so went to at from ato but it’s a process to do right anyone can bolt it in but other #### is a different story.
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