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Old 09-24-2010, 01:11 PM   #1
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Default wheel spin question

i have an hpi r40 that i recently have taken outta retirement and when i started it it started right up like a champ and seemed to be running fine then when i brought it in to add more fuel i noticed that one of the rear wheels was like dieing when i let off the gas or when i pressed the gas hard it didnt spin as fast as the other 3 wheels(as you know the r40 has belt drive 4wheel drive).....its not like it pulled in a direction but i dont like the look of it....do you guys think its normal(i personally havent seen it before) or do you think its the rear differential
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Old 09-24-2010, 01:22 PM   #2
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I would look at the diffs. One or both may need a rebuild if applicable.
Elliott Hart
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