Planning a swap into a 2nd Gen Dakota....
Planning a swap into a 2nd Gen Dakota....
You could use a 606 with a mechanical pump from an om603 car. There's always one or more on ebay for too much money. Keep the 5 speed auto and use a standalone controller. No speedo cable with the 5 speed auto.
You could use a 603 motor. It comes with a mechanical pump and the 4 speed auto is also mechanical. There is no lockup torque converter in this trans, so fluid will get hot when towing. These are cheap and plentiful. Don't bother with the 3.5l om603. They have too many problems.
All teh IDI merc motors are very happy at 3000 rpm so plan on having the chassis geared for them to cruise at this engine speed. They typically make a little more torque (lb-ft) than HP but they are not low rpm grunt motors.
raysorenson
04-02-2015, 11:58 AM #4You won't be towing with a little Mercedes 5 speed. They're not strong.
You could use a 606 with a mechanical pump from an om603 car. There's always one or more on ebay for too much money. Keep the 5 speed auto and use a standalone controller. No speedo cable with the 5 speed auto.
You could use a 603 motor. It comes with a mechanical pump and the 4 speed auto is also mechanical. There is no lockup torque converter in this trans, so fluid will get hot when towing. These are cheap and plentiful. Don't bother with the 3.5l om603. They have too many problems.
All teh IDI merc motors are very happy at 3000 rpm so plan on having the chassis geared for them to cruise at this engine speed. They typically make a little more torque (lb-ft) than HP but they are not low rpm grunt motors.
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