Z32 Lsd Upgrade

I picked up this car for about 1000bucks. I then began to remove any workable parts for my 240sx .

The rear suspension on the NA/Turbo 300zx is identical to the 240sx. with one exception.

Note you can't use the differential out of the twin turbo 300zx due to different gear ratios!

Well the first thing you want to do is position the car safely on jack stands .

There are two upper bolts that secure the differential to the rear chassis . Go ahead and remove them. (17mm)

Next position the jack under the differential and begin to remove the drive shaft bolts .

Note you can also pull the e-brake to help in the removal of the axle and drive shaft bolts

My axle bolts were on very tight and posistioning the impact gun was a pain. Needless to say the removal steps can vary depending on the situation. I used an alingning punch between the u-joint on the drive shaft and rotated the shaft until it lodged aganist the frame. I still had to take a propane torch to the bolts.

Next remove the last bolts securing the differential to the frame and also remove the rear anti-sway bar . 17mm bolts on the lower subframe differential bolts and the sway bar has a 12mm bolts and 14mmbolts. Next remove the abs sensors . Slowy lower the differential with the jack

Next remove the axles from the Z32 differential using a rubber mallet or hammer . Use light taps to remove them from the differential.

Do the same with the stock 240sx differential so you can swap them into the the Z32 differential.

Note: the axle shaft fromn the stock 240sx are little shorter ,but no worry the will slide right in with no problems.

Next clean up the 240sx differential cover and prepare to install it on the z32 differential.

The differential cover on the z32 differential won't fit in the 240sx chassis.

Next the rest of the install is reverse order of the removal. The s13 chassis dosen't use any rubber bushing to bolt the differential

to the frame. I used rubber bushings from the z32 chassis and bolts . You may not have this option being that I had a donor car .

Now there are several parts from the z32 (300zx) that work on the 240sx rear suspesion.

The lower A-arms from the Z32 will bolt right up,but the ball joints are different . The Z32 has

seal ball-joints. The 240sx has the normal grease filled ball-joint. If you decide to use the

Z32 uprights,and you decide to use true coilovers, sleave kit is required in order to use

coilovers that are designed to work with the 240sx suspension. The Z32 bolts up with a

fork style ,but the 240sx bolts up to the outside ofthe 240sx upright.

I ended up using the Z32 shocks and had no problems. This was only temporary until I could aquire

Most guys who do this swap normally just get the 5-lug hub and swap it to the 240sx rear

suspension. I went a different route and decided to use the the z32 rear upright. In doing

this I shaved off 16lbs of unsprung wieght because the z32 is cast aluminum verses the steel

on the 240sx . Note in order to use your rear axles from the 240sx there is metal shim on the

end of the axel that will interfere with it bolting up to the z32 spindle. The z32 spindle has a

rubber dust-boot, where as on the 240sx it used metal shims. The lower ball joint on the z32

is a sealed vs. the grease filled 240sx. You have two options 1. If you use rearupright with the

lower A-arm from the z32 then everthing bolts up fine . 2 If you don't have the lower A-armfrom the then you need to

swap you grease filled balljoint to the z32 balljoint in order for the 240sx lower A-arm to bolt

Now your next question probly is why go through the hassel . Well for one the z32

has 2 piston rear calipers vs the single piston caliper . But with using the z32 upright you have

several issues that come up . Well for one the z32 uses drum style e-brake which would probly be

fine for parking but I have doubts about using it for drifting . You can swap the 240sx rear single-

piston caliper,which to me makes know sense. So I dedcied to go with a hydraulic e-brake instead.

I have a whole thread on the subject on http://www.Driftcentral.com. Anyway here is the link to the thread.


	Z32 Lsd Upgrade I picked up this car for about 1000bucks. I then began to remove any workable parts for my 240sx . The rear suspension on the NA/Turbo 300zx is identical to the 240sx. with one exception. Note you can't use the differential out of the twin turbo 300zx due to different gear ratios! Parts List 75/90 gear oil Degreaser 240sx rear axles Floor jack and jack stands prybar 17mm,14mm sockets Brass drift , 2lb hammer or rubber mallet Well the first thing you want to do is position the car safely on jack stands . Next you want to start with unbolting the axels .(14mm bolts) There are two upper bolts that secure the differential to the rear chassis . Go ahead and remove them. (17mm) Next position the jack under the differential and begin to remove the drive shaft bolts . Note you can also pull the e-brake to help in the removal of the axle and drive shaft bolts My axle bolts were on very tight and posistioning the impact gun was a pain. Needless to say the removal steps can vary depending on the situation. I used an alingning punch between the u-joint on the drive shaft and rotated the shaft until it lodged aganist the frame. I still had to take a propane torch to the bolts. Next remove the last bolts securing the differential to the frame and also remove the rear anti-sway bar . 17mm bolts on the lower subframe differential bolts and the sway bar has a 12mm bolts and 14mmbolts. Next remove the abs sensors . Slowy lower the differential with the jack Next drain oil out of the differential. Next remove the axles from the Z32 differential using a rubber mallet or hammer . Use light taps to remove them from the differential. Do the same with the stock 240sx differential so you can swap them into the the Z32 differential. Note: the axle shaft fromn the stock 240sx are little shorter ,but no worry the will slide right in with no problems. Next clean up the 240sx differential cover and prepare to install it on the z32 differential. The differential cover on the z32 differential won't fit in the 240sx chassis. Next the rest of the install is reverse order of the removal. The s13 chassis dosen't use any rubber bushing to bolt the differential to the frame. I used rubber bushings from the z32 chassis and bolts . You may not have this option being that I had a donor car . 2-Way Lsd Install Now there are several parts from the z32 (300zx) that work on the 240sx rear suspesion. The lower A-arms from the Z32 will bolt right up,but the ball joints are different . The Z32 has seal ball-joints. The 240sx has the normal grease filled ball-joint. If you decide to use the Z32 uprights,and you decide to use true coilovers, sleave kit is required in order to use coilovers that are designed to work with the 240sx suspension. The Z32 bolts up with a fork style ,but the 240sx bolts up to the outside ofthe 240sx upright. I ended up using the Z32 shocks and had no problems. This was only temporary until I could aquire better setup. Link Sleave-Kit from Megan Racing Most Companys will not sell you the sleave kit sepearley Megan Racing will but they do not guanrentee it work with any other shock/coilvers Note: S13 rear upright bolt to outside of the upright. Note: Z32 shock/coiolovers Most guys who do this swap normally just get the 5-lug hub and swap it to the 240sx rear suspension. I went a different route and decided to use the the z32 rear upright. In doing this I shaved off 16lbs of unsprung wieght because the z32 is cast aluminum verses the steel on the 240sx . Note in order to use your rear axles from the 240sx there is metal shim on the end of the axel that will interfere with it bolting up to the z32 spindle. The z32 spindle has a rubber dust-boot, where as on the 240sx it used metal shims. The lower ball joint on the z32 is a sealed vs. the grease filled 240sx. You have two options 1. If you use rearupright with the lower A-arm from the z32 then everthing bolts up fine . 2 If you don't have the lower A-armfrom the then you need to swap you grease filled balljoint to the z32 balljoint in order for the 240sx lower A-arm to bolt up . Now your next question probly is why go through the hassel . Well for one the z32 has 2 piston rear calipers vs the single piston caliper . But with using the z32 upright you have several issues that come up . Well for one the z32 uses drum style e-brake which would probly be fine for parking but I have doubts about using it for drifting . You can swap the 240sx rear single- piston caliper,which to me makes know sense. So I dedcied to go with a hydraulic e-brake instead. I have a whole thread on the subject on http://www.Driftcentral.com. Anyway here is the link to the thread. http://tinyurl.com/ejpod All you ever wanted to know about differentials Ksport Hydrualic E-Brake Well here it is my new hydraulic E-Brake!!