DIY: Pumpkin Swap
09-16-2009, 03:05 PM
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DIY: Pumpkin Swap
I recently did another 3.5fd w/vLSD Pumpkin Swap, and i thought id share with you guys how I went about it.
CAUTION: Install at your own risk. This is only a tutorial, and I will not resume responsibilty if anything goes wrong with your install.
First: Raise car and place on jack stands
Remove exhaust mid pipe
Remove bottom rear plastic trim pieces
Remove rear swaybar
CAUTION: Install at your own risk. This is only a tutorial, and I will not resume responsibilty if anything goes wrong with your install.
First: Raise car and place on jack stands
Remove exhaust mid pipe
Remove bottom rear plastic trim pieces
Remove rear swaybar
09-16-2009, 03:06 PM
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Lube drive shaft flange bolts and bushing bolts
I used PB Blaster
Lube rear bolt and disconnect wheel sensor harness
Lube axle stub bolts, then remove those bolts
Hang axles with wire or zip ties so they are not just dangling free
I used PB Blaster
Lube rear bolt and disconnect wheel sensor harness
Lube axle stub bolts, then remove those bolts
Hang axles with wire or zip ties so they are not just dangling free
09-16-2009, 03:07 PM
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Remove drive shaft flange bolts
Place jack under pumpkin and remove pumpkin bushing bolts.
Im using a transmission jack adapter to make it a little easier.
I picked up this adapter @ Harbor Freight for about $40.
Place jack under pumpkin and remove pumpkin bushing bolts.
Im using a transmission jack adapter to make it a little easier.
I picked up this adapter @ Harbor Freight for about $40.
09-16-2009, 03:08 PM
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Remove rear nut
now lower jack by about 2", then push jack forward just enough for the rear stud to slide out. Now reach around top and you will see a rubber hose clamped onto the differential cover. Disconnect [dont cut unless you have a replacement hose] that hose [sorry forgot to take picture of this step]. Then you can completely lower the jack and remove the pumpkin.
Install is the Reverse.
TIP for Install: raise pumpkin in place with rear stud in its hole, then install bushing bolts and install till hand tight. Then hand tight the rear nut. Then torque the bushing bolts. Then torque the rear bolt. Going little by little like this ensures a smooth install because alignment wont give you any hassle.
now lower jack by about 2", then push jack forward just enough for the rear stud to slide out. Now reach around top and you will see a rubber hose clamped onto the differential cover. Disconnect [dont cut unless you have a replacement hose] that hose [sorry forgot to take picture of this step]. Then you can completely lower the jack and remove the pumpkin.
Install is the Reverse.
TIP for Install: raise pumpkin in place with rear stud in its hole, then install bushing bolts and install till hand tight. Then hand tight the rear nut. Then torque the bushing bolts. Then torque the rear bolt. Going little by little like this ensures a smooth install because alignment wont give you any hassle.
Last edited by Z&G's Parts Dis; 09-17-2009 at 12:31 PM.
09-16-2009, 03:08 PM
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Torque Specs:
Pumpkin
Drive Shaft Bolts - 54 ft/lbs
Bushing Bolts - 74 ft/lbs
Axle Bolts - 52 ft/lbs
Rear Nut - 81 ft/lbs
Sway Bar
Bushing Nuts - 25 ft/lbs
Endlink Nuts - 41 ft/lbs
Pumpkin
Drive Shaft Bolts - 54 ft/lbs
Bushing Bolts - 74 ft/lbs
Axle Bolts - 52 ft/lbs
Rear Nut - 81 ft/lbs
Sway Bar
Bushing Nuts - 25 ft/lbs
Endlink Nuts - 41 ft/lbs
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04-14-2010, 06:58 PM
#13
Thanks! This made the swap super easy!
Hardest part was getting the bolts in while holding the new one up.
I skipped taking the sway bar off - plenty of room with it on.
What a difference! No more one wheel wonder for me - i wouldn't of guessed what extra pull it would have. I thought i was very good at feathering the gas and getting the car to accelerate with limited wheel spin but lsd is the way to go!
Hardest part was getting the bolts in while holding the new one up.
I skipped taking the sway bar off - plenty of room with it on.
What a difference! No more one wheel wonder for me - i wouldn't of guessed what extra pull it would have. I thought i was very good at feathering the gas and getting the car to accelerate with limited wheel spin but lsd is the way to go!
03-13-2014, 09:56 AM
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Pumpkin Swap
hey guys, know this is a late reply but i just recently did my swap and i have started to get a buzzing electrical noise that pulsates my brake pedals. My guess is that i went wrong somewhere with the abs sensor, I left the sensor from the stock open diff connected to the car and connected it to the LSD. This was two days ago and today i started getting this problem, just wondering if anyone has encountered this before.
Thanks
Thanks
05-21-2016, 08:32 PM
#16
Registered User
I am about to swap in a g37s VLSD with 3.69 gears. If i buy the auto i have to swap driveshaft flanges.. Is this task as simple as it looks? just taking the center nut off and pulling it out? Does it need pressed in? New seals? Thanks in advance.
09-11-2016, 07:44 AM
#18
