JimC

Jason, you will like the Shaftmasters - and while they don't do the install, not too far from them is a shop experienced with the product, Ron's Tranz Man in Lincoln Park as well. I can get you the contact information if you need it.

Stkjock

nicely done as always

TacoBill

Just added...

For those with the replacement pinion flange kit, see Post #1, step 10 for further instructions.[/align]

goose5

Is there a different manufacturer for the flange that goes on the pinion flange to make it 4bolt compatible? I dont really like how on the one that is shown the threaded holes are close to the holes that are countersunk. Is there a reason they have to be so close?


Anyways, kickass walkthrough

onederful100

great write up as usual. i know i will eventually do this mod too, just gotta get the cash first.

deekum1627

this is old dont know if you noticed it its a sticky

Bmr4life

Thanks for this. I followed most of your guide and did my 2011 GT DS today. Here's my story.

Had the car up in the air at 11:00am. On the ground with garage cleaned back up at 3:20pm. This included a 15min run to autozone and me having to fabricate an aluminum pinion flange puller since nothing autozone had would work. Also included me re-torquing all my lca relation bracket bolts since I just used the impact to do it earlier in the week (I knew I was coming back for the DS install).

Here's my ramp setup. Wooden ramps under all wheels (drove it up like that) then I jacked up the rear axle so I could spin the tires.



Old and new (to me) drive shafts.



This is honestly an easy job as long as you have decent strength and cardio AND aren't overweight. I'm 6' 180lbs (with a gut) and can slide under the car relatively easily. Removing the pinion flange was the only hard part (over an hour spent here) and that's because I could not find the proper tool and had to make one. Once that was done it took less than 2 mins to remove it. Getting the pinion nut off was not that bad (less than 5 mins). My electric ryobi impact was not up to the task so I had to use my 18" breaker bar which did take every ounce of muscle I had in that tight confinement. It broke loose after 2 tries. Then I used the impact for the remaining threads. I did spray it with PB Blaster and let that sit for over 5 minutes while I cleaned the threads of all the DS bolts I was reusing.

Oh, when you do get that pinion flange off, be quick with the replacement. It leaks the stink oil fast. I was ready, but bobbled a little bit.

Here's a pic of my custom flange puller. It uses parts from the gear puller I rented from autozone.


Cardio comes in for all the times you have to do this sequence:

Crawl from under the car, loosen the hand brake (or put car in neutral), crawl under the car and spin the shaft, get back in the car and pull the hand brake (or put car in park), crawl back under the car and loosen/tighten the bolt.

I did that over 25-30 times.

What my garage looked like as I was nearing the finish line.



Done.



I've been up to 90mph with no hint of vibration. Looking good so far.

808muscle

Good job Bmr.....helps to have a friend and save that cardio for later. LOL Its a good day when the garage looks like that.

loots06

I did this mod a few weeks ago. I went with Shaftmaster 3.5 once piece DS. By far one of the best mods you could ever do. It really changes the driving experience and eliminates the clunk from the stock DS.

Did you notice the sticker on the stock DS, "Scrap if dropped".

05 Mustang

congrats!