I just replaced my forward A drum and ordered new cooling lines for my ZF... When I took out the old ones, some of the threads from the lines got caught in the threads on the case. Can someone tell me the size tap I will need to clean out the threads? Shot in the dark here.. Im hopin someone out here knows the answer!

 

I actually found out in case anyone else wants to know... Its a standard O2 sensor thread size (or 18mm spark plug) 18mm 1.5 chaser. Oxygen sensor thread tracer tool cost 7 bucks and I'm back in biz..

 

What is the procedure for changing an A drum?

 

Dan, did anyone get back to you on the procedure to change A drum ?

 

Alex,
No, they did not.
Dan