Tank wont trim to straight farward,pulls to the left,and the left track makes a grinding noise,bran new played twice.heng long m1a2 abrahms,wat,to can i do to fix

[Simon]

Carnet get plastic cogs in rear drive box in order had to replace motors,any diagrams to help me,thanx, heng long m1a2 abrahms tank

[Rubicon99]

Your issue is easy to solve but you will need to supply more information.

Is this a 6.0 or 7.0 tank?
Do you have metal gears?
Are your tracks plastic or metal?
Are you sprockets metal?
Do you have the instruction manual that should have come with your tank?