Brake upgrade for 89 GQ

[beretta]

Hi all, I've seen on here somewhere ages ago that you can upgrade the brake calipers on early GQ's with calipers from the newer GQ's, trouble is I can't find any threads on it. Just want to upgrade the old trucks stopping power with bigger tyres.

Can anyone fill me in on this upgrade?

Thanks for the help!

Cheers, Paul

[jessie928]

all you need is the disks and calpers off a late model gq patrol with the 16" mags standard

you can check the calipeers, they shoudl be twin piston as opposed to the single piston units

Jes

[ats4x4dotcom]

we have been doing slotted rotors and heavy duty pads for gq/gu, which make a big difference when running biger tyres.

[beretta]

we have been doing slotted rotors and heavy duty pads for gq/gu, which make a big difference when running biger tyres.

Do you think upgrading to the twin piston Calipers will help a lot? or will different rotors and pads do just as well?

[jessie928]

twin piston calipers and the larger disk help when you have bigger rubber

good pads with slotted or drilled rotors help aswell.

JEs

[bogged]

Do you think upgrading to the twin piston Calipers will help a lot? or will different rotors and pads do just as well?

I have a set of discs and twin piston calipers available $350 + post. thats what I paid for them, but never got around to fitting them. Discs are in great cond...

[JBE]

With the twin piston calipers out of the EFI GQs, don't you need to upgrade to 16" rims as well? I was told, they don't clear for 15" rims.

Cheers
Jaochim

[rover1]

With the twin piston calipers out of the EFI GQs, don't you need to upgrade to 16" rims as well? I was told, they don't clear for 15" rims.

Cheers
Jaochim

i've got a GU diff in my GQ with 15x8 alloys, the clearance is that close that the stick-on wheel weights that are used on the inside, foul on the calipers. if you look at mine rims they is a lead smear around the inside where the weights used to be.

[legsx1]

I had 16 inch rims on my GQ and I have gone to 15 inch rims for my muddies with no problems

[RN]

we have been doing slotted rotors and heavy duty pads for gq/gu, which make a big difference when running biger tyres.

Is that front and rear?

I don't run big rubber just 16" GU steel rims on the Mav with standard single pot calipers. Braking is adequate for non spirited driving. How does this package relate to pedal feel and stopping ability for everyday use over standard.

[not not]

i agree with ats4x4dotcom. Upgrading to slotted rotors with good pads really makes the brakes in a gq pull up well but you can go 1 step better and replace all the rubber brake lines to braided and double the upgrades stopping ability.

[blkmav]

i agree with ats4x4dotcom. Upgrading to slotted rotors with good pads really makes the brakes in a gq pull up well but you can go 1 step better and replace all the rubber brake lines to braided and double the upgrades stopping ability.

x2 and much more legal than fitting new calipers/rotors

[not not]

Braided lines are legal in qld as long as they have right stampings (numbers ) on them.

[bogged]

x2 and much more legal than fitting new calipers/rotors

Nothing illegal about fitting calipers and rotors of same model EG GQ to GQ.

[blkmav]

x2 and much more legal than fitting new calipers/rotors

Nothing illegal about fitting calipers and rotors of same model EG GQ to GQ.

I said 'more legal'

[Jimbo]

Ok what are the best pads. I was gonna put some 4wd bendix pads but if there are better at a similar price i will use them.

Jimmy

[hottiemonster]

Ok what are the best pads. I was gonna put some 4wd bendix pads but if there are better at a similar price i will use them.

Jimmy

i found that bendix pads on mine chewed out VERY quickly, one set i got about 3000km on

using genuine nissan pads now and they are waring VERY well!

[YankeeDave]

Ok what are the best pads. I was gonna put some 4wd bendix pads but if there are better at a similar price i will use them.

Jimmy

i found that bendix pads on mine chewed out VERY quickly, one set i got about 3000km on

using genuine nissan pads now and they are waring VERY well!

wow only 3000, hottie havnt i told you that the driving all day with your foot on the middle pedal wont give you extra traction

[GRINCH]

i found lucas pads to work very well, a bit dusty though.
id steer clear of bendix as they destroy rotors pretty quick

[chimpboy]

I had 16 inch rims on my GQ and I have gone to 15 inch rims for my muddies with no problems

But does your GQ have the twin piston calipers?

i've got a GU diff in my GQ with 15x8 alloys, the clearance is that close that the stick-on wheel weights that are used on the inside, foul on the calipers. if you look at mine rims they is a lead smear around the inside where the weights used to be.

Is there extra meat on the calipers at the point where they rub? ie could you do a bit of filing?

Also, at a guess, your alloy rims would be a bit chunkier than steel rims - what do you think?

I hate the brakes on my Mav, they are definitely not what I'd like them to be and that's only with 33s, not even huge rubber.

I'd love to swap the calipers but not if I have to replace my rims at the same time...

Jason

[The Conductor]

Maybe try and source some disc from a diesel.

All GQ patrols with factory rear disc brakes have 18mm thick rear rotors/discs.

Petrol GQ's have 20mm thick factory front rotors/discs and the diesels were fitted with 26mm thick front rotors/discs.

[Jimbo]

Interesting!!

As a comparison i used to have the same tyres (33" BFG mud terrains) on my surf. They has 4 piston calipers on the front but they could NOT lock up in the dry. Whilst driving home in my patrol the other day i locked up my wheels to avoid an accedent pretty easily. Mine is a 94EFI so maybe i have the better brakes??


Jimmy

[chimpboy]

Interesting!!

As a comparison i used to have the same tyres (33" BFG mud terrains) on my surf. They has 4 piston calipers on the front but they could NOT lock up in the dry. Whilst driving home in my patrol the other day i locked up my wheels to avoid an accedent pretty easily. Mine is a 94EFI so maybe i have the better brakes??


Jimmy

Yes, I believe a 94 model would have the 2-piston calipers.

[bogged]

i found that bendix pads on mine chewed out VERY quickly, one set i got about 3000km on

I didnt get many more out of one set...

using genuine nissan pads now and they are waring VERY well!

Went EBC Greens, but will go OEM next time.

[ats4x4dotcom]

We do the packages in front and rear, slotted rotors and pads, to suit GQ/GU and the pedal feel goes from pushing on the pedal, and having to push harder, as you want to stop, with larger tyres, to braking, and releasing some pedal pressure to keep the same reduction in speed, and braking distance reduced from 80kph by aprox 20% in my testing.

braided lines certainly improve the pedal feel, and we do these as a package also, as stage 2 of the brake upgrade, with wilwood 6 pot calipers with dust seals and larger dia rotors on the front becoming stage 3 shortly, when testing is completed, but these will require 17" rims.

[Tiny]

braided lines certainly improve the pedal feel,

agree, we have had some good feedback from customers who have purchased slotted rotors and semi metalic pads, benifit is they will last longer as well.

Drop in and see me at the new store mate, 1/33 stanley rd ingleburn, I will sort you out with a ripper deal

[ats4x4dotcom]

braided lines certainly improve the pedal feel,

agree, we have had some good feedback from customers who have purchased slotted rotors and semi metalic pads, benifit is they will last longer as well.

We dont tend to let the products loose on the customer until we have tested them ourselves first generally, which is what we have done with the rotors we have had DBA make for us, and the pad material we are using from Bendix.

Our 6 pot calipers have been held up with dust boot fitment initially, and making parts across the different rotor thicknesses of GQ /GU as similar as possible, but Im keen to finish testing those shortly.

[not not]

Wow wilwood six pot calipers! They would pull ya up on a dime

[bogged]

Wow wilwood six pot calipers! They would pull ya up on a dime

you wouldnt have any dimes left after buying them

[not not]

I dont have any to start with cause i own a buggy