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Brake Upgrade 1990 80 Series
Moderators: toaddog, Elmo, DUDELUX
Brake Upgrade 1990 80 Series
Hey Guys,
Looking at doing an upgrade on the brakes of my 80. Its a 1990. I have 15's on it and want to keep it that way. I've heard that I should be fitting later discs, backing plates and callipers on the front with the 100 series brake pads but what about the rears? What can I do for that?
Any help would be great,
Cheers
Looking at doing an upgrade on the brakes of my 80. Its a 1990. I have 15's on it and want to keep it that way. I've heard that I should be fitting later discs, backing plates and callipers on the front with the 100 series brake pads but what about the rears? What can I do for that?
Any help would be great,
Cheers
Ryan
1990 HDJ80
1990 HDJ80
Re: Brake Upgrade 1990 80 Series
from memory if you want to run 15 inch rims you have to leave the rear brakes as standard
home brew cooling in progress
Re: Brake Upgrade 1990 80 Series
if u upgrade the rear to later model 80 rears. then kiss ya 15's good bye
80 xtra cab
Supercharged LS1, Locked n shit
80 Wagon, TD Tourer, locked, Interco 35s, G turbo
Supercharged LS1, Locked n shit
80 Wagon, TD Tourer, locked, Interco 35s, G turbo
Re: Brake Upgrade 1990 80 Series
15's won't fit on the rear with the later brakes. 15's will fit on the front with later brakes, but only with more offset rims or spacers.
Given the age of it, you'd probably get a brake upgrade just by overhauling the entire system. Also make sure the lspv is adjusted properly, especially if there is a lift involved.
Given the age of it, you'd probably get a brake upgrade just by overhauling the entire system. Also make sure the lspv is adjusted properly, especially if there is a lift involved.
The worst part about being told you have Alzheimer's, is that it doesn't just happen once.
Re: Brake Upgrade 1990 80 Series
I upgraded my 92 diesel model brakes. Unbolted and rolled in a front end from a 94 model petrol (swapped them).
But found in the 94 petrol after the swap. The brakes where rock hard and awsome. But the diesel brakes are still soft and spoungy. Are the cylinders different between petrol and diesel models?
As mentioned the rear bigger brakes dont fit 15's. But you dont need them as the front does 90% of the braking.
But found in the 94 petrol after the swap. The brakes where rock hard and awsome. But the diesel brakes are still soft and spoungy. Are the cylinders different between petrol and diesel models?
As mentioned the rear bigger brakes dont fit 15's. But you dont need them as the front does 90% of the braking.
Re: Brake Upgrade 1990 80 Series
All i did with our 80 was slotted rotors and stainless brakelines all round, completly different truck now.
Re: Brake Upgrade 1990 80 Series
also something to remember is that when upgrading the rear brakes the caliper is the same it is just the backing plate which spaces the caliper to fit the larger rotor
home brew cooling in progress
Re: Brake Upgrade 1990 80 Series
I was going to say, I would not worry about the rear. For the above reason, and the fact that it does next to no work!ledgend80 wrote:also something to remember is that when upgrading the rear brakes the caliper is the same it is just the backing plate which spaces the caliper to fit the larger rotor
hands and mums dont count!!!
Re: Brake Upgrade 1990 80 Series
Thanks for all the replies guys,
I'm running 33's on just a set of sunnies. Will these rims have enough offset to fit the newer brake system to the front?
I'm thinking if I just upgrade the front callipers, backing plate and put a set of slotted rotors on the front with the 100 series brake pads and on the back just put slotted rotors with new 80 series pads then it should be a lot better.
Just need to know if the sunnies will fit on after all this work.
Also will I be able to fit the standard 80 series rims that come on the early models over the new brake system as well? I dont want to have to change it all back to standard when I go to sell the car down the track.
I'm running 33's on just a set of sunnies. Will these rims have enough offset to fit the newer brake system to the front?
I'm thinking if I just upgrade the front callipers, backing plate and put a set of slotted rotors on the front with the 100 series brake pads and on the back just put slotted rotors with new 80 series pads then it should be a lot better.
Just need to know if the sunnies will fit on after all this work.
Also will I be able to fit the standard 80 series rims that come on the early models over the new brake system as well? I dont want to have to change it all back to standard when I go to sell the car down the track.
Ryan
1990 HDJ80
1990 HDJ80
Posts: 3725
Joined: Wed Jun 30, 2004 1:45 pm
Joined: Wed Jun 30, 2004 1:45 pm
Location: Blue Mountains, or on a rig somewhere in bumf*ck idaho
Re: Brake Upgrade 1990 80 Series
so is that why i'm running 15's on later brakes on the devil?crankycruiser wrote:if u upgrade the rear to later model 80 rears. then kiss ya 15's good bye
it's close and i had to massage the caliper a tiny bit but it's doable.
having said that, there's no point because the fronts can't be done that way no matter how much you massage the caliper.
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Re: Brake Upgrade 1990 80 Series
I had a set of -45 offset 15x8 inch sunny rims on my old 1991 80, with the larger brakes and rotors on. I ditched the backing plate, rather then putting on the later one. The other option is to cut the backing plate to fit the rotors.Grylls wrote:Thanks for all the replies guys,
I'm running 33's on just a set of sunnies. Will these rims have enough offset to fit the newer brake system to the front?
I'm thinking if I just upgrade the front callipers, backing plate and put a set of slotted rotors on the front with the 100 series brake pads and on the back just put slotted rotors with new 80 series pads then it should be a lot better.
Just need to know if the sunnies will fit on after all this work.
Also will I be able to fit the standard 80 series rims that come on the early models over the new brake system as well? I dont want to have to change it all back to standard when I go to sell the car down the track.
I think the original rims are -20 or -25mm offset. If you have the original rim on the spare tyre you could measure that.
The worst part about being told you have Alzheimer's, is that it doesn't just happen once.
Re: Brake Upgrade 1990 80 Series
yes it is doable with big offset rims and a grind of the caliper....rockcrawler31 wrote:so is that why i'm running 15's on later brakes on the devil?crankycruiser wrote:if u upgrade the rear to later model 80 rears. then kiss ya 15's good bye
it's close and i had to massage the caliper a tiny bit but it's doable.
having said that, there's no point because the fronts can't be done that way no matter how much you massage the caliper.
a mate ran 15's on his to... then he put new pads in the rear brakes and then the calipers hit his rims lol
80 xtra cab
Supercharged LS1, Locked n shit
80 Wagon, TD Tourer, locked, Interco 35s, G turbo
Supercharged LS1, Locked n shit
80 Wagon, TD Tourer, locked, Interco 35s, G turbo
Re: Brake Upgrade 1990 80 Series
i'd say the master cyl/boosters are differnt between the early model and the later modelsTheBigBoy wrote:I upgraded my 92 diesel model brakes. Unbolted and rolled in a front end from a 94 model petrol (swapped them).
But found in the 94 petrol after the swap. The brakes where rock hard and awsome. But the diesel brakes are still soft and spoungy. Are the cylinders different between petrol and diesel models?
As mentioned the rear bigger brakes dont fit 15's. But you dont need them as the front does 90% of the braking.
80 xtra cab
Supercharged LS1, Locked n shit
80 Wagon, TD Tourer, locked, Interco 35s, G turbo
Supercharged LS1, Locked n shit
80 Wagon, TD Tourer, locked, Interco 35s, G turbo
Re: Brake Upgrade 1990 80 Series
the 16" GXL rims are zero offsetoldmate wrote: I think the original rims are -20 or -25mm offset. If you have the original rim on the spare tyre you could measure that.
80 xtra cab
Supercharged LS1, Locked n shit
80 Wagon, TD Tourer, locked, Interco 35s, G turbo
Supercharged LS1, Locked n shit
80 Wagon, TD Tourer, locked, Interco 35s, G turbo
Re: Brake Upgrade 1990 80 Series
factory 80 rims are -16 and and factory 75 are -22 _-25 and factory nissan is 0 offset
the front will fitt with your standard rims but the rear you need to grind the callipores as that is how i got mine to fit with the factory 15 inch cromys that come on the 80s.
that worked for me but now i run the 16s as i found it handled better . but that is just wat i did and it works
the front will fitt with your standard rims but the rear you need to grind the callipores as that is how i got mine to fit with the factory 15 inch cromys that come on the 80s.
that worked for me but now i run the 16s as i found it handled better . but that is just wat i did and it works
Re: Brake Upgrade 1990 80 Series
ive measured my 80 gxl rims multiple times.. they are 4" backspace or zero offset..crazy eyes wrote:factory 80 rims are -16 and and factory 75 are -22 _-25 and factory nissan is 0 offset
the front will fitt with your standard rims but the rear you need to grind the callipores as that is how i got mine to fit with the factory 15 inch cromys that come on the 80s.
that worked for me but now i run the 16s as i found it handled better . but that is just wat i did and it works
80 xtra cab
Supercharged LS1, Locked n shit
80 Wagon, TD Tourer, locked, Interco 35s, G turbo
Supercharged LS1, Locked n shit
80 Wagon, TD Tourer, locked, Interco 35s, G turbo
Re: Brake Upgrade 1990 80 Series
80 series is 0 offset and 60 is -20 offset. Confirmed by about 4 tyre shops when looking for new rims for the 80
93 RV, 5 in tough dog lift, dobinsons shocks and coils, PA, dual fuel, many many oil leaks and a ton of character.
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