HELP!!! My diff will not go back on the car

Rusty · 09-09-2019, 11:56 PM

I've installed 3 diff bushings so far. The first one I did was on my Z. A solid SPL bushing. I had the same problem as you with one bolt not wanting to start. You need to tap the frame bushing a little deeper into the frame. Even tho it's flush in the frame. The combination of the solid bushing, the Z1 cover and the stud on the cover. The tolerances get stacked up in the wrong direction.

The last thing you want to do, is to strip out the nut in the sub-frame. You will have to drop the sub-frame, cut the top of it to get to the captive nut in it to change it out. I was looking at this for chits and giggles when I did my sub-frame bushings.

Jayhovah · 09-10-2019, 09:33 AM

Quote:

Originally Posted by Rusty

I've installed 3 diff bushings so far. The first one I did was on my Z. A solid SPL bushing. I had the same problem as you with one bolt not wanting to start. You need to tap the frame bushing a little deeper into the frame. Even tho it's flush in the frame. The combination of the solid bushing, the Z1 cover and the stud on the cover. The tolerances get stacked up in the wrong direction.

The last thing you want to do, is to strip out the nut in the sub-frame. You will have to drop the sub-frame, cut the top of it to get to the captive nut in it to change it out. I was looking at this for chits and giggles when I did my sub-frame bushings.

^^^^ this. I installed an Energy Suspension bushing first and it didn't have the clearance for the extended stud boss on the Z1 cover. Whiteline bushing fit MUCH easier.

eliboy · 09-15-2019, 07:08 PM

Quote:

Originally Posted by Rusty

I've installed 3 diff bushings so far. The first one I did was on my Z. A solid SPL bushing. I had the same problem as you with one bolt not wanting to start. You need to tap the frame bushing a little deeper into the frame. Even tho it's flush in the frame. The combination of the solid bushing, the Z1 cover and the stud on the cover. The tolerances get stacked up in the wrong direction.

The last thing you want to do, is to strip out the nut in the sub-frame. You will have to drop the sub-frame, cut the top of it to get to the captive nut in it to change it out. I was looking at this for chits and giggles when I did my sub-frame bushings.

Will try next weekend and report back!

09-09-2019, 11:56 PM	#1 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 69 Posts: 35,362 Drives: 2011 Nismo GM 6M Rep Power: 2684438	I've installed 3 diff bushings so far. The first one I did was on my Z. A solid SPL bushing. I had the same problem as you with one bolt not wanting to start. You need to tap the frame bushing a little deeper into the frame. Even tho it's flush in the frame. The combination of the solid bushing, the Z1 cover and the stud on the cover. The tolerances get stacked up in the wrong direction. The last thing you want to do, is to strip out the nut in the sub-frame. You will have to drop the sub-frame, cut the top of it to get to the captive nut in it to change it out. I was looking at this for chits and giggles when I did my sub-frame bushings. JARblue, Jayhovah, Spooler and 2 others like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
My Nismo GT-Pro Full built diff, + Z1 diff cover + diff cooling	Triggzz	Engine & Drivetrain	1	07-10-2019 12:46 AM
[FOR SALE] Z1 brand new diff, trans, diff poly mounts	Elmo370z	Parts for sale (Private Classifieds)	6	02-19-2019 05:34 PM
[FOR SALE] NEW! Quaife Diff QDF11L, Bearings, bushing, bolts, oil, finned diff cover...	kdrshocker	Parts for sale (Private Classifieds)	14	11-01-2018 11:07 PM
WTT: My Base Diff + Cash for Your Sport Diff	aadosx	South East Region	0	04-27-2011 05:41 PM
WTT: My Base Diff + Cash for Your Sport Diff	aadosx	Parts for sale (Private Classifieds)	11	04-27-2011 05:40 PM