T9 Replacement Compatibility

[JohnM15]

I have a M15A-20 and the output and pilot bearing are on the edge. I have not looked at the gear teeth. I planned on replacing the bearings and if any gear looks bed, replace them also.

But ebay has a newly rebuilt T9 for $300 but how can I determine that it will fit?

The ebay transmission came out of a M16 which I presume had the big six not the Champion I have.

Will the ebay transmission fit my M15A-20?

[StudeRich]

On a Car, the Champion clutch splines are smaller than Commander, meaning the Trans. Input shafts are also.

On a Truck they may be the same, someone will have to look up the input shafts, or Clutch Disc. in the M Series Truck Parts Catalog to be sure.

My suggestion would be to use a REAL Trans. NOT a straight cut gear, double clutching ancient type. The T-98 4 Speed is just the best, smoothest shifting tranny ever.
Are you able to determine from the seller's measurements, the Bolt Pattern dimensions to know it the Case fits?

[JohnM15]

Thanks. I looked up the part numbers and the M16 T9 does have a different input shaft than the the M15/M15A T9.

I think I'll pass on the ebay tranny. I'm getting advice on Truck Talk that I should chuck the T9 and go with a T98. Maybe someday...