chiefmd

Did you have to order the Cobra GT3 seats from GB?

Has anyone installed the Corbeau Classic in their 240z. Seems like good quality frame construction and materials. Just want know what is needed for installation and weather they are comfortable. Thanks

Rob - I have to agree with you on quality. The more I looked the more I could see and what you don't see is probable more concerning. Who knows how the frame is constructed and what materials were used. Thanks for all the input. Will start my search.

Couldn't copy and paste url but here is the item number 391472202342

Saw these on ebay and just wanted to know if anyone has installed these in their Z.

bump

1973 240z with 350 sbc. 225/50 x 16 tires. What would be a good highway driving tire pressure?

Looking for a set of the covers. I need the ones that have the 3 screws as seen in this picture.

Jon - Thanks for the input. I pulled the pinion flange a greased the seal. All is good. Thanks again.

Got the diff all back together today. Tightened down the pinion nut per Jon's instructions. My question is how much force should it take to rotate the pinion. I put a electronic torque wrench on it and it takes about 35 lbs to rotate the pinion shaft. The FSM state about 20 lbs. Should I back off the pinion nut a little?

Well got it disassembled today and guess what I found. Inner pinion bearing was "trashed". Outer ball bearing also needs replacing as it does have some rough spots when rotated. Will keep you posted.

Thanks

Newzed - Is the the same part number for both bearings?

Looking to purchase the two inner pinion bearings for a 86 300zx NA differential.I have the ball bearing. Does anyone know the part number for the bearings and race. Are the ones on Rockauto (Timkin) good. Thanks

My mistake yes it was a "Power Brute" not Brute power. Just dyslectic in my old age. Contacted CourtesyParts and they had "1" in stock along with the seal. Really appreciate all the input and assistance. Hopefully this with fix all.

Newzed - Took your advise and removed the half shafts and ran the car, the noise is still there. So looks like I'll be dropping the diff again to replace the pinion bearing. Are there any instructions on how to do this as I've never done this before. And where can I purchase the bearings.

I am posting a video I made hopefully you will be able to hear the whine over the exhaust. I ran it thru all 6 gears getting up to 80mph. The noise on the video is more predominate in the higher gears. But I can hear thru all the gears sitting in the car. It gets louder in the upper gears and higher RPM. Here's a link to Youtube with the video, its titled " 240z whining differential".

Put the car up on the lift this morning. Lower the rear onto jack stands to take the droop out of the axles. Ran the car and the rear is nice a quiet. Used a stethoscope and listened to the pinion and axle bearing thru the case nothing abnormal. Could the noises I heard be the gear noise being transmitted thru the frame. When I had the previous rear (clsd) in just had the chatter/grabbing sounds. Could the spider gears make the differential that much noise?

Thank you very much

First let me clarify a few things: I’m 70 years old and don’t push my cars hard. Just love the sound of a V8 I have a 73 240Z with 350SBC 340hp T56 trans, R200 with Brute Force CLSD. MMS Flanges with 280Z stub axles. Z31 300ZXT CV Half Shafts with bearing cages flipped and 1/8” ground of the axle. The Brute Force CLSD was constantly chattering no matter how much friction modifier was added so I decided to just go back to an open R200. I picked a 1986 300ZX Non turbo R200 with 60k miles. Made the change out and took it for a test ride this morning. Diff is loud, whinning. Not sure if it’s the pinion lash or a bearing. The reason I’m not sure is I had to change out the pinion flange. I forgot to mark the pinion nut so when I installed it on the newer R200 I torqued the nut to 125- 150 fibs. The reason I was thinking bearing is that the passenger side cv axle was tight getting it in even with the modifications to the half shafts. I was thinking that the axle is putting a lot of pressure on the bearing. I read about having to replace the axles with shorter ones. Is the reason for doing this because the turbo cv half shafts put too much stress on the bearings? If it is the pinion is there any information on how to set the lash? Really appreciate any and all input you can give. Thanks

I have searched thru the this site and cannot find anything on how to flip the cage on 300zxt CV. Is there any instructions out there on how to do this. Thanks.

Thanks Mike.

Richard Burleigh was making custom steel braces for the R200 CLSD finned cover so I contacted him thru email to see if he has any for sale. He stated he does not but would be willing to fabricate more if he gets enough request. If you are interested just add you name to the list below. Looks like a really nice product. I believe he needs 15 orders to make a run. Link to original thread: http://forums.hybridz.org/topic/98295-steel-brace-for-r200-clsd-finned-cover-in-s30-new-list-and-design/?hl=%20custom%20%20steel%20%20brace%20%20r200%20%20clsd%20%20finned%20%20cover 1. Mike DeVane

I spoke with Richard thru email and he currently does not have any of his custom Steel Brace for R200 CLSD Finned Cover in stock. But he is willing to fabricate more if any one is interested. I believe he needs 15 orders to make a run. If anyone one is interested just add your name below: 1. Mike DeVane

Looking for a good set of 240z seat mechanism covers. Let me know if you have a set. Thanks