yfz450 front shocks on ltz400

dano540 · 01-17-2012, 07:07 PM

has anyone put yfz 450 front shocks on ther z400 an if u did wat did u do to make them work

jasmf24 · 01-17-2012, 07:09 PM

Stock Front Shock Dimensions

CFM-Z440 · 01-17-2012, 07:15 PM

They're way too short. You will tear your ball joints out if you try to use them.

dano540 · 01-17-2012, 07:35 PM

so u suggest i dont put thos on my z400. then wat would u suggest i use for front shocks

CFM-Z440 · 01-17-2012, 07:41 PM

With stock a-arms, I'd go with stock 05+ LT-Z shocks or any year TRX450R shocks. With +2 or +3 arms (non long travel) I would use LTR 450 shocks.

dano540 · 01-17-2012, 07:48 PM

so if i use trx450r shocks i can use stock a-arms an if i use ltr450 shocks i will have to get extended a-arms

CFM-Z440 · 01-17-2012, 07:59 PM

You can use either one with either one, but they are better suited as I described. The LTR has wider a-arms stock, the TRX doesn't, so it will keep the shocks somewhat in their intended usage.

dano540 · 01-17-2012, 08:01 PM

ok thank u. will it lower it any if u use the trx450r shocks over using the newer ltz shocks cause i want to lower it alittle cause it stands to tall

CFM-Z440 · 01-17-2012, 08:08 PM

Yeah, the TRX450R shocks are a tad shorter. You can also switch to some dual or tripple rate springs to bring it down some more. There's a recent thread that is suggesting that a 400EX spring in the rear is a nice mod, and that lowers it as well.

I agree with that, the Z is a little tall to handle good. Those things should help a lot!

dano540 · 01-17-2012, 08:10 PM

thank u for all the help

CFM-Z440 · 01-17-2012, 08:11 PM

No problem, welcome to the site. I think you will find a lot of great info here if you do a little looking around. Especially in the sticky'd topics.

01-17-2012, 07:07 PM	#1 (permalink)
dano540 :::Rookie Rider::: Join Date: Jan 2012 Posts: 22	yfz450 front shocks on ltz400 has anyone put yfz 450 front shocks on ther z400 an if u did wat did u do to make them work

01-17-2012, 07:09 PM	#2 (permalink)
jasmf24 :::KFX 400 Rider::: Join Date: Mar 2011 Location: Pittsburgh Posts: 913	Stock Front Shock Dimensions __________________ 2004 KFX400, 12.2:1 Wiseco, HMF full exhaust, FCR-39 (170 M/ 42P/ 40L/ NCVQ, DRZ-E boot w/ compact head-stay), OSHC's, K-W valves w/ drz springs, Dyna Fs NP, Raptor Petcock, Wiseco cam chain, 400ex boot, Oversized clamp on UNI/K&N no lid, DRZ-E Base, DRZ Flywheel, LTR450 Front Shocks, blob-less ProTaper Contour bars (ATV High) w/ hot-start reverse, odi grips, Tusk nerfs, Full skids, 14/40, (R) Holeshot ITP HD (F) Rzr2, Port-N-Polish by me.

01-17-2012, 07:15 PM	#3 (permalink)
CFM-Z440 Super Moderator Join Date: Sep 2006 Location: Southern Minnesota Posts: 6,432	They're way too short. You will tear your ball joints out if you try to use them. __________________ 03 LT-Z 470 Max Power 12.5:1 94mm Piston, Hot Rods +5 Stroker Crank, Web Cams 539 (+6) IN / 539 EX, with Hot Cams sprockets, Ferrea +1 Valves, LTZ/DRZ springs (IN)DRZ springs (EX), DRZ Manual Decomp. Ported head, FCR 41 with Noss adaptor, Home made intake, Modified HMF Full System, Home made header, Trailtech flywheel, Dyna Programable 54hp 36ft lbs

01-17-2012, 07:41 PM	#5 (permalink)
CFM-Z440 Super Moderator Join Date: Sep 2006 Location: Southern Minnesota Posts: 6,432	With stock a-arms, I'd go with stock 05+ LT-Z shocks or any year TRX450R shocks. With +2 or +3 arms (non long travel) I would use LTR 450 shocks. __________________ 03 LT-Z 470 Max Power 12.5:1 94mm Piston, Hot Rods +5 Stroker Crank, Web Cams 539 (+6) IN / 539 EX, with Hot Cams sprockets, Ferrea +1 Valves, LTZ/DRZ springs (IN)DRZ springs (EX), DRZ Manual Decomp. Ported head, FCR 41 with Noss adaptor, Home made intake, Modified HMF Full System, Home made header, Trailtech flywheel, Dyna Programable 54hp 36ft lbs

01-17-2012, 07:59 PM	#7 (permalink)
CFM-Z440 Super Moderator Join Date: Sep 2006 Location: Southern Minnesota Posts: 6,432	You can use either one with either one, but they are better suited as I described. The LTR has wider a-arms stock, the TRX doesn't, so it will keep the shocks somewhat in their intended usage. __________________ 03 LT-Z 470 Max Power 12.5:1 94mm Piston, Hot Rods +5 Stroker Crank, Web Cams 539 (+6) IN / 539 EX, with Hot Cams sprockets, Ferrea +1 Valves, LTZ/DRZ springs (IN)DRZ springs (EX), DRZ Manual Decomp. Ported head, FCR 41 with Noss adaptor, Home made intake, Modified HMF Full System, Home made header, Trailtech flywheel, Dyna Programable 54hp 36ft lbs

01-17-2012, 07:35 PM	#4 (permalink)
dano540 :::Rookie Rider::: Join Date: Jan 2012 Posts: 22	so u suggest i dont put thos on my z400. then wat would u suggest i use for front shocks

01-17-2012, 07:48 PM	#6 (permalink)
dano540 :::Rookie Rider::: Join Date: Jan 2012 Posts: 22	so if i use trx450r shocks i can use stock a-arms an if i use ltr450 shocks i will have to get extended a-arms

01-17-2012, 08:01 PM	#8 (permalink)
dano540 :::Rookie Rider::: Join Date: Jan 2012 Posts: 22	ok thank u. will it lower it any if u use the trx450r shocks over using the newer ltz shocks cause i want to lower it alittle cause it stands to tall

01-17-2012, 08:08 PM	#9 (permalink)
CFM-Z440 Super Moderator Join Date: Sep 2006 Location: Southern Minnesota Posts: 6,432	Yeah, the TRX450R shocks are a tad shorter. You can also switch to some dual or tripple rate springs to bring it down some more. There's a recent thread that is suggesting that a 400EX spring in the rear is a nice mod, and that lowers it as well. I agree with that, the Z is a little tall to handle good. Those things should help a lot! __________________ 03 LT-Z 470 Max Power 12.5:1 94mm Piston, Hot Rods +5 Stroker Crank, Web Cams 539 (+6) IN / 539 EX, with Hot Cams sprockets, Ferrea +1 Valves, LTZ/DRZ springs (IN)DRZ springs (EX), DRZ Manual Decomp. Ported head, FCR 41 with Noss adaptor, Home made intake, Modified HMF Full System, Home made header, Trailtech flywheel, Dyna Programable 54hp 36ft lbs

01-17-2012, 08:10 PM	#10 (permalink)
dano540 :::Rookie Rider::: Join Date: Jan 2012 Posts: 22	thank u for all the help

01-17-2012, 08:11 PM	#11 (permalink)
CFM-Z440 Super Moderator Join Date: Sep 2006 Location: Southern Minnesota Posts: 6,432	No problem, welcome to the site. I think you will find a lot of great info here if you do a little looking around. Especially in the sticky'd topics. __________________ 03 LT-Z 470 Max Power 12.5:1 94mm Piston, Hot Rods +5 Stroker Crank, Web Cams 539 (+6) IN / 539 EX, with Hot Cams sprockets, Ferrea +1 Valves, LTZ/DRZ springs (IN)DRZ springs (EX), DRZ Manual Decomp. Ported head, FCR 41 with Noss adaptor, Home made intake, Modified HMF Full System, Home made header, Trailtech flywheel, Dyna Programable 54hp 36ft lbs

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