ABS????

[polarisrmk]

Finally got my 85' 126 on the road last night with no overheating she is cherry and runs very good. 0-60 time when i was doing my italian tune up was about 13 sec. with not the best diesel fuel in it and injectors that need new nozzels. As i was driving on wet roads i decided it would be a good idea to test the Brakes. I did a panic stop and car stops great but i feel no ABS and car went all squirly as all the wheels locked up. Do these old abs systems just suck or do i have a problem? The antilock light is not on or anything.