View Full Version : ASTRA GSI BRAKES
Anonymous
07-12-00, 04:53 PM
One of my mates has smashed up his MK3 astra GSI and i'm looking at taking the front and rear brakes of his hands. What size are the discs on the GSI, will i need to change the hubs on the front wheels. And how difficult a job is a rear axle transplant.
Last but not least what is the market price for these parts.
Anonymous
07-12-00, 05:22 PM
Izit a 2.0l ????
Anonymous
07-12-00, 06:16 PM
for the front you just need the calipers and disks, they bolt straight on. but depends on your wheels you need 15" preferably or some 14" alloys will JUST fit.
Don't put the back on yet cos of danger of spinning out, common problem cos back is so light, it will overtake the front end....spin, hedge, ditch, hospital!
you don't need rear disks, i've got a 2.0 16v and just drums on the back.
Anonymous
08-12-00, 08:10 AM
I have astra GSI rear discs on mine, It is not a straight forwards job to fit them, you need to remove the stub axles, cut the thick mounting plate off the end of the axle and then make or buy(carquip?) a new one for the GSI stub axle. It may be easier if you get the whole GSI rear axle and cut the plates off the end of that. They then need to be carefully welded on the the end of the nova axle, you will need the handbrake guide from the rear axle also. You will also need to mess with the handbrake cable, I used the astra GSI one but there are better ways to do it. front brakes ?50, rear beam ?80-?100 ish.
Anonymous
08-12-00, 09:42 AM
Ian I read something on MIG's website about fitting a brake bias valve, to stop the rears locking before the front. My main reason for doing the rear is looks, it's only a standard 1.6 gsi engine and will be staying that way until the insurance company say different.
Anonymous
08-12-00, 12:05 PM
If you have the big front brakes aswell it should be fairly well ballanced anyway, but it would be wise to find a car park or somwhere to test them in the wet just to make sure the rears aren't locking before the fronts. If they are you could fit a brake bias valve (like rally cars have) to alow you to alter the pressure to the rear brakes. This is a fairly shit job as it will mean alot of messing with the rear brake pipes as you have to alter the breke circuits to work the fronts on one circuit and rears on the other,(instead of opposite corners) with a single pipe to the rear running through the bias valve which is usually fitted inside near the gearstck. Try it without first
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