Looking 4 a mt 643

[Wilbur2]

Looking 4 a mt643 2 replace my mt545 need all the adapters. Must have the parking brake on the rear of the tranmission.

[cadillackid]

what engine? that helps to determine adapters required.


the park brake will be the toughest part to find,(unless your engine is a T444e then it will be the trans adapter ring) most MT643s were in heavier vehicles that had air brakes.. GMC did use 643s behind their 3208 CATs in the 60 and 70 series chassis trucks.. a web search shows they do exist nbew still but for upwards of $1000



LKQ in marshfield missouri last I knew still had a few reman MT643s for around $650.

[Wilbur2]

Originally Posted by cadillackid

what engine? that helps to determine adapters required.


the park brake will be the toughest part to find,(unless your engine is a T444e then it will be the trans adapter ring) most MT643s were in heavier vehicles that had air brakes.. GMC did use 643s behind their 3208 CATs in the 60 and 70 series chassis trucks.. a web search shows they do exist nbew still but for upwards of $1000



LKQ in marshfield missouri last I knew still had a few reman MT643s for around $650.

Its A 1996 dt 466 3800 international hydraulic brakes