Limited Slip Differential (LSD) Install - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Slidin240Wayz · 04-02-2007, 08:06 AM

Tomei Technical Trax Advanced.

Main Unit

Bearings

Foundation. Pumpkin.

Remove the 8 bolts for the cover.

The Inside

Label the sides on the diff and the output shafts.

L

R

Remove the bolts for the bearing caps. Use a flathead to remove pry the caps off.

At this point a clean and calm environment will help keep everything in order. The parts inside the pumpkin are side specific so when something is removed, keep it to their respective side.

Use a mallet to remove the output shafts. After enough hits, they slide out. If not, pry them out using your imagination. I had to use a chisel and an assortment of tools used as spacers.

Use 2 bars, extensions or breaker bars, and place one on each side of the middle section and puch down both sides at the same time to remove the open diff

Place the diff on the vice to remove the ring gear

Luckily the open diff has flat sections to help with the torque necessary to loosen the bolts

1 breaker bar for the bolts and 1 breaker bar for the table to stay in place. Loosen in a criss cross pattern.

Ring gear

Ring gear bolts

Install the new bearings. Lay the LSD on the floor.

Start one bearing with your hand to make sure it is going to go in evenly.

Use a mallet to put it in place.

It will be flat, but in order to ensure complete flushness, use a piece of wood and a hammer.

Clean off the bolts to have the threads spotless.

Lay a drop of thread lock into each hole along the edge to drop down the threads.

Place the ring gear on the LSD and line up the holes correctly. Then lay some drops on each bolt.

Tighten them by hand in a criss cross pattern.

Place the unit on a vice with a towel to protect the LSD as much as possible.

An extra pair of hands will be needed to hold the diff in place. Placing the torque wrench over the middle allows for the easiest tighten method.

Ring gear is torqued to 100 ft-lbs.

Clean out the pumpkin.

Note: No need for brake cleaner as the pinion gear is already lubed up and in place and placing brake cleaner might roughen things up around there.

Complete the side bearings with these.

Drop the unit into place and install the small spacers first. Then stand the pumpkin on its side and install the thicker spacer on the left side. The large spacer will have to be malletted into place. I lubed it up with liquid wrench and place a towel over it and mallet an extension until it is set in place.

Note: please remeber the small spacers are side specific; there is a .25 - .3 millimeter difference which makes a huge difference for the life of the LSD.

Remove the side oil seals with a large wrench or a hammer. Be careful as to grab onto the oil seal by itself, not the pumpkin.

New Oil Seals.

Mallet them into place and use an extension on the edges, 4 corners, and hammer them until you feel that they are flush.

Bolt down the bearing caps to 70 ft-lbs of torque.

The infamous prussion blue test. 100% GO!

Wipe off the prussion blue and clean the surface with a gasket scraper and clean micrfiber towels.

Place the gasket on the mating surface and bolt the cover to 35 ft ft-lbs of torque.

Continued: http://www.zilvia.net/f/showpost.php...8&postcount=15

04-02-2007, 08:06 AM	#1
Slidin240Wayz Post Whore! Join Date: Jan 2005 Location: Everywhere Age: 40 Posts: 5,427 Trader Rating: (9) Feedback Score: 9 reviews	Limited Slip Differential (LSD) Install Tomei Technical Trax Advanced. Main Unit Bearings Foundation. Pumpkin. Remove the 8 bolts for the cover. The Inside Label the sides on the diff and the output shafts. L R Remove the bolts for the bearing caps. Use a flathead to remove pry the caps off. At this point a clean and calm environment will help keep everything in order. The parts inside the pumpkin are side specific so when something is removed, keep it to their respective side. Use a mallet to remove the output shafts. After enough hits, they slide out. If not, pry them out using your imagination. I had to use a chisel and an assortment of tools used as spacers. Use 2 bars, extensions or breaker bars, and place one on each side of the middle section and puch down both sides at the same time to remove the open diff Place the diff on the vice to remove the ring gear Luckily the open diff has flat sections to help with the torque necessary to loosen the bolts 1 breaker bar for the bolts and 1 breaker bar for the table to stay in place. Loosen in a criss cross pattern. Ring gear Ring gear bolts Install the new bearings. Lay the LSD on the floor. Start one bearing with your hand to make sure it is going to go in evenly. Use a mallet to put it in place. It will be flat, but in order to ensure complete flushness, use a piece of wood and a hammer. Clean off the bolts to have the threads spotless. Lay a drop of thread lock into each hole along the edge to drop down the threads. Place the ring gear on the LSD and line up the holes correctly. Then lay some drops on each bolt. Tighten them by hand in a criss cross pattern. Place the unit on a vice with a towel to protect the LSD as much as possible. An extra pair of hands will be needed to hold the diff in place. Placing the torque wrench over the middle allows for the easiest tighten method. Ring gear is torqued to 100 ft-lbs. Clean out the pumpkin. Note: No need for brake cleaner as the pinion gear is already lubed up and in place and placing brake cleaner might roughen things up around there. Complete the side bearings with these. Drop the unit into place and install the small spacers first. Then stand the pumpkin on its side and install the thicker spacer on the left side. The large spacer will have to be malletted into place. I lubed it up with liquid wrench and place a towel over it and mallet an extension until it is set in place. Note: please remeber the small spacers are side specific; there is a .25 - .3 millimeter difference which makes a huge difference for the life of the LSD. Remove the side oil seals with a large wrench or a hammer. Be careful as to grab onto the oil seal by itself, not the pumpkin. New Oil Seals. Mallet them into place and use an extension on the edges, 4 corners, and hammer them until you feel that they are flush. Bolt down the bearing caps to 70 ft-lbs of torque. The infamous prussion blue test. 100% GO! Wipe off the prussion blue and clean the surface with a gasket scraper and clean micrfiber towels. Place the gasket on the mating surface and bolt the cover to 35 ft ft-lbs of torque. Continued: http://www.zilvia.net/f/showpost.php...8&postcount=15 __________________ Support Zilvia by purchasing a sticker!