Forum: Group 5 - Brakes

I just got my 72 GT running (still needs work) and not driving it yet. Keep in mind that this car has not been driven since 89...... Basically I have no brake pressure in front (Disc brakes), and bearly in the rear, but can not stop the car and can bearly stop the car using the emergency...

I got a bunch of odd parts from Kat when I bought her SportWagon. Sorting through it today, I found these two wheel cylinders. One is NOS, the other is used (but very re-buildable). They are marked "Opel", and are "left and right" (based on the difference in connections), and have a 15/16 inch...

I'm sorry this question has been asked before, but i have a feeling Mantas have it a bit different than GT's Problem is i don't even know where to start to get it off. its just stuck to the firewall like magic, only thing i can unsrcew is the master cilinder, can i get to some bootster supports...

When I replaced my master cylinder, I may have X-threaded the front brake pipe fitting at the banjo fitting. It seems to be seeping a little, and I don't think I want to tighten it any more. Do I need to replace the brake line and banjo fitting? If so, can I use the aftermarket lines from NAPA,...

Been a long time since I've posted here ;) Anyway, FINALLY getting back to working on the Opel. While it's been parked, for some reason, it has completely lost all braking. Can't even hold itself on a driveway! The pedal goes down with very little resistance, and what there is feels like a...

Okay you Opel old-timers, I need to jog some memories. I just received a ventilated brake kit that I won on e-bay. The seller bought it from MantaParts in the late 80's and never used it. It includes ventilated discs already mounted to Opel hubs and VW single piston calipers. The discs...

I finally got all the new Master cylinder, front calipers and rear wheel cylinders installed. Also put new hoses on too. I started bleeding the brakes and both of the new rear cylinders were leaking quite a bit around the pistons. Was there something I missed on the install or would they be...

I am parting out a Gt and I can't get the damned brake booster and master cyl out. I've followed the FSM and gotten the 4 bolts that attach the booster to the support out but can't get the thrust rod loose, and can't get the whole thing to move forward but about an inch. Any ideas? I've had to walk...

I am in the process of doing a complete brake overhaul. I have removed the rear wheel cylinders and front calipers. I installed the new master cylinder today and when I hooked up the brake pedal, it would only move about 2 inches even though there is nothing attached at the wheels. Before I...

My brake booster has a massive vacuum leak. you can hear it even with the hood closed. at first I thought it was the nozzle where the big hose from the intake manifol goes, but i replaced the gasket and sealed it up good, but the leak still exists. What are my options here? Is it possible to have...

is the rotor made into the hub? if so is the brembo the rotors i should get? by the way do they have the studs(bolts) for the tire already on them? if they don't where can i buy the studs???? and for how much?

Will brake drums from another vehicle work on a 71 GT..or do they have to be specific? I can't seem to find any for a "GT" Thanks.

Yesterday was my day to bleed the brakes. I was able to successfully blead the front brakes..but when I went to the back..no fluid came out. So I thought the cylinders might be the problem (the car had new cylinders still in the boxes when I bought). So today, I was able to get the rear drums off,...

I haven't been able to find a local auto parts store that has the rear drum hardware kit, or even can order one for that matter. I need to pick up a new kit ASAP as one of my retaining clips broke and my GT is now my daily driver. What other models (non Opel) can be used as a replacement? ...

This is an alternate shot showing how close they get. I never noticed the stamped size on the original rim till I saw this picture, either. See attachment.

I need to replace my leaking brake cylinders. Can anyone tell me the part number for after market/current day replacement cylinders that I can get at a local Canadian parts store such as Canadian Tire/Speedy muffler or Napa. Thanks

My 70 gt is giving me indigestion. I'm rebuilding the front calipers and some where along the way I misplaced one of the four tiny flat rubber washers that go between the calipers. I can't find them anywhere, I even called ogts and they said the only way to get one is to have your caliper rebuilt...

Allright ill be honest im getting a little frustrated. I am looking for an isuzu impulse to take the rear end from, both for the brakes and the diff, but i cannot find the answer to a simple question anywhere in previous posts. What year(s) am i looking for?? I hear an 85 will work, but i am...

yet another bad idea? I'm replacing my front brake lines and wondered if it's a bad idea to leave the flexhose-to-steel connector unsupported. The original brake line U shape is mounted between the caliper and a bracket that shares the caliper mounting bolts. Is the bracket required for safe...

I just got my fuel line ordered, should be here tomorrow. well any ways i was going to roll my gt out of the garage, and I put it in nuteral and put the parking brake down. i gave it all i got, its not much but hey i tired. and nothing didnt move. i got my buddy to help me move it. nothing still....