S14 diff swap/ Drive shaft bolts not coming off - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

TrooyyS14 · 01-12-2013, 05:34 PM

The drive shaft bolts(4) Connected to the diff do not want to come off. I'm pretty strong. I've PB blasted them and still they wont budge. The drive shafft keeps moving and i feel like im going to strip the shit out of them.!I need help fast

future · 01-12-2013, 05:42 PM

Put the car in gear? Lol

TrooyyS14 · 01-12-2013, 05:43 PM

It's in gear and ebrake is on.

MtnGoat · 01-13-2013, 01:53 AM

I had the same problem while dropping my diff a couple months ago. I put the wrench on the bolt and whacked it with a hammer. It was loose by the 2nd impact. Didnt even have it in gear or have the Ebrake up.

jr_ss · 01-13-2013, 05:49 AM

Use the box end of the wrench and tap it in the correct direction with a hammer. They'll break loose eventually.

-Edit-

Now that I think about it, you need to be using two 13mm wrenches if I'm not mistaken. The nut will not spin on the diff side because of the pinion flange. You need to be loosening the bolt on the driveshaft side of the flange.

The Dude · 01-13-2013, 06:25 AM

I eventually broke down and used an angle grinder/dremel.

codyace · 01-14-2013, 08:53 PM

If you have a small propane torch you can use that too to potentially help out. Try to heat the nut and it will help things expand. Put your 14mm wrench over the nut, and then use the two wrench trick. Should come right off.

2 wrench trick:

TrooyyS14 · 01-14-2013, 09:28 PM

Yeah I got it yesterday. I used the two wrech. My main problem was I was alone and driveshaft kept spinning

codyace · 01-14-2013, 10:42 PM

Quote:

Originally Posted by TrooyyS14

Yeah I got it yesterday. I used the two wrech. My main problem was I was alone and driveshaft kept spinning

For someone reading this in the future upon searching, you can always take a long screw driver/bar/whatever and jam it through the U joints and let it 'jam' against the body to help remove them too. I always do that as I'm too lazy to get back out from under the car to release the e brake to spin the shaft over to get to the opposite bolts (same trick used when taking the CV axles out).

ghoti · 01-15-2013, 01:52 PM

Quote:

Originally Posted by codyace

For someone reading this in the future upon searching, you can always take a long screw driver/bar/whatever and jam it through the U joints and let it 'jam' against the body to help remove them too. I always do that as I'm too lazy to get back out from under the car to release the e brake to spin the shaft over to get to the opposite bolts (same trick used when taking the CV axles out).

I do that screw driver/bar trick in the junkyard also.
Except that I would put the screwdriver on the "vents" of the rotors (if they had any) and they would jam against the caliper.

*fliprayzin240sx* · 01-16-2013, 02:02 PM

I usually stick a pry bay between the U-joints if I'm too lazy to keep crawling under the car to pull/drop the Ebrake.

Paint209 · 01-17-2013, 12:58 AM

yea, i swapped out my diff last week and managed to get 3 of the 4 bolts off using this>>>

Then...

Quote:

Originally Posted by The Dude

I eventually broke down and used an angle grinder/dremel.

lol. was using new bolts anyway and i cut it from the diff side so all was ok.

s14sliding · 02-12-2013, 02:14 PM

had the same problem today as im having same problem with tranny plug. these bolts are tough ill def have to try 2wrench trick for my drive shaft tomorrow. any advice for the tranny plug though? that thing wont budge

01-12-2013, 05:34 PM	#1
TrooyyS14 Leaky Injector Join Date: Jul 2012 Location: Bay Area Ca Age: 31 Posts: 105 Trader Rating: (0) Feedback Score: 0 reviews	S14 diff swap/ Drive shaft bolts not coming off The drive shaft bolts(4) Connected to the diff do not want to come off. I'm pretty strong. I've PB blasted them and still they wont budge. The drive shafft keeps moving and i feel like im going to strip the shit out of them.!I need help fast

01-13-2013, 05:49 AM	#5
jr_ss Post Whore! Join Date: Dec 2005 Location: Pa Posts: 6,415 Trader Rating: (35) Feedback Score: 35 reviews	Use the box end of the wrench and tap it in the correct direction with a hammer. They'll break loose eventually. -Edit- Now that I think about it, you need to be using two 13mm wrenches if I'm not mistaken. The nut will not spin on the diff side because of the pinion flange. You need to be loosening the bolt on the driveshaft side of the flange. __________________ My SR20VET Does your VTC gear rattle in your S14/15 SR? PM me. Last edited by jr_ss; 01-13-2013 at 08:11 AM..

01-14-2013, 08:53 PM	#7
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 40 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	If you have a small propane torch you can use that too to potentially help out. Try to heat the nut and it will help things expand. Put your 14mm wrench over the nut, and then use the two wrench trick. Should come right off. 2 wrench trick: __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

01-16-2013, 02:02 PM	#11
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	I usually stick a pry bay between the U-joints if I'm too lazy to keep crawling under the car to pull/drop the Ebrake. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

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01-12-2013, 05:43 PM	#3
TrooyyS14 Leaky Injector Join Date: Jul 2012 Location: Bay Area Ca Age: 31 Posts: 105 Trader Rating: (0) Feedback Score: 0 reviews	It's in gear and ebrake is on.

01-13-2013, 01:53 AM	#4
MtnGoat Join Date: Jan 2013 Location: San Jose, CA Posts: 3 Trader Rating: (0) Feedback Score: 0 reviews	I had the same problem while dropping my diff a couple months ago. I put the wrench on the bolt and whacked it with a hammer. It was loose by the 2nd impact. Didnt even have it in gear or have the Ebrake up.

01-13-2013, 06:25 AM	#6
The Dude Zilvia Junkie Join Date: Sep 2003 Location: TN Age: 40 Posts: 357 Trader Rating: (4) Feedback Score: 4 reviews	I eventually broke down and used an angle grinder/dremel.

01-14-2013, 09:28 PM	#8
TrooyyS14 Leaky Injector Join Date: Jul 2012 Location: Bay Area Ca Age: 31 Posts: 105 Trader Rating: (0) Feedback Score: 0 reviews	Yeah I got it yesterday. I used the two wrech. My main problem was I was alone and driveshaft kept spinning

02-12-2013, 02:14 PM	#13
s14sliding Zilvia Member Join Date: Feb 2010 Location: Orlando Fl Age: 35 Posts: 211 Trader Rating: (0) Feedback Score: 0 reviews	had the same problem today as im having same problem with tranny plug. these bolts are tough ill def have to try 2wrench trick for my drive shaft tomorrow. any advice for the tranny plug though? that thing wont budge