400ex suspinsion and brakes

[jeremy2.2]

hey guys im new here an jus starting to mod my 04 400ex. i ran in to the front calipers being locked up! so i heard u can use 450er calipers i found a set of 450er calipers spindals and hubs for 170.00 cheaper than a new stock 400ex set but will they wrk? an if so can i use my 400ex rotors? also if it does can i use 450er shocks as well im looking to lower and widen the front end i found a lowering kit with 1 1/2 to 4 inches of play in rear and 2 to 3 1/2 play in front for 80.00 it also widens the front i was gonna go with extended hubs to widin the rear 3 1/2 cheap and better than spacers iv heard.....im just a trail rider and jump a lil with my buddys thnaks any advice will help

[atvrider13]

I would get a set of used yfz450 front calipers. They bolt right on.

[Reece616]

The 450er brakes cost a lot to upgrade. I put of yfz450 front brakes and the bolt on with no modification. All you need is the calipers and pads.

[jeremy2.2]

well see im buying the 450er spindals calipers and hubs for 170.00...that should bolt right up to my 400ex arms right? what maks yzf calipers any diffrent?

[Deeperinthabush]

Welcome to da forums...Just rebuild the calipers you have for under 40 bux total..Compressed air forced into the brake line hole with a block ,or rag between the piston,and caliper,clean piston with very fine emery cloth,and wd40,clean inside of caliper,replace seal,and o rings,and voila,paint em to have 2 like new calipers that will last you as long as buying new ones,and save you enough moolah to almost pay for the extended axle,or wheel spacers,or axle extension hubs....

[jeremy2.2]

well the part of the calipers that r locked up is not the plunger part it the slider on the mounting bracket that makes the indacator move i can get the new pads in fine but the bracket wont move to alow for the rotor to squeez between them.... and the allen wrench is so siezed up i broke two wrenches on them i c clamped them bent c clamp and i put channle locks on them an let them soak in wd 40 over night didnt budge !!! so time for new ones an they run from 60 to 100 a pair i figured the 450er parts were a deal !

[atvrider13]

You can get Yfz450 calipers alot cheaper than $170.I got mine for like $35 used.

[Deeperinthabush]

Try some PB blaster overnight as wd40 nowhere near as good at soaking into,and lubricating...

[jeremy2.2]

yeah but my point is im not just gettin calipers im getting hubs and spindles ass well.. i just wanted to know if it would work with my rotors if any body knew i already no that yzf calipers will... im wanting to do a 450r swing arm conversion also

[jeremy2.2]

my calipers r trashed the c clamp messed them up