hi. everyone have a brake caliber question? I was given A new front caliber by and old brickster. he say it was for his 86 240 that he never installed. now that I have A sticking piston I want to use it on my 90. can it be done?? and is the left and right calibers interchangeable.

Not sure if your '90 has ABS or not (it may not have started until late '91, but not sure). The '86 donor car definitely did not have it, so its caliper has two lines going in, representing the dual triangular circuits of those cars.

ABS cars, if you have it, have calipers with only one line, because an ABS system precludes having the old dual triangular circuit design (which had lines from both circuits working the front calipers, although rear calipers have always had only one line). But to see if you have ABS, just look between your battery and the drivers side shock tunnel -- if you have a big box with brake lines mounted there, you have ABS. This is easier than crawling under the car to count brake lines going into your caliper.

Your other question, are they interchangeable right to left? The answer is NO. Not even sure if they're physically interchangeable, viz., how the bolt holes would position the caliper against the rotor; but definitely it could not be bled if switched: you'd never get out the air in the pistons' cylinders because the inner passages of the calipers are designed for the bleeders to be above each cylinder -- air rises toward the bleeder -- and if the caliper could be mounted on the wrong side, the bleeder would be on the bottom of the cylinder.

Calipers are not interchangeable side to side. If your car has two brake lines to each front caliper you can use the one from the '86 -- but if your car has ABS it will have only one line to each caliper and the '86 unit will not work. -- Dave

That would be caliper.