DIY: Ford 8.8" Differential Swap
01-06-12, 08:55 PM
#21
Pole Position
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Don't listen to the naysayers. Your on to something. If you make up a "kit" and take your time to make a jig, I'm sure you will have people wanting to buy it. I would. I just put an LS1 in my Sc and beech another option other than 6spd tt LSD
01-06-12, 11:03 PM
#22
Having a 3.55 option would be mint. It bothers me that I cruise on the highway (75ish) at so close to 4000 rpm with my R154 + 4.08 rear. I know Toyota is OK with it so it must be alright but the motor just feels and sounds too busy.
My Trailblazer SS just about idles (~1500rpm) at highway speeds. Even my 350Z with 4.08 gears doesn't spin as fast.
My Trailblazer SS just about idles (~1500rpm) at highway speeds. Even my 350Z with 4.08 gears doesn't spin as fast.
05-15-12, 03:40 PM
#28
Driver School Candidate
This looks and sounds like a great idea but mk4 tt diff hold 1000hp no problem I know pleanty of guys at the track with a basic diff swap and beat them with no boom yet, to each there own I guess but nice idea
05-15-12, 07:04 PM
#29
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Join Date: Nov 2007
Location: Texas
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I think the idea is good and very innovative, but you are comparing it to an entire 6 speed rear end which is why it seems economical, but you should factor in that most of us just drop lsd's into the existing Differential.
Its already in your SC, can handle lots of power, and there are plenty of ring gear choices that will bolt right up from various I6's and v8's with varying transmissions. you can also get solid diff mounts for it. The lsd costs more, but you could probably buy a few of them for the cost of fabricating a new rear end setup.
here are all the ratios that will swap over to your stock case.
97-00 SC400 3.266
92-97 SC300
6 cyl, AT (4.27 ratio)
6 cyl, MT (4.08 ratio)
98-00 SC300
6 cyl, AT (4.27 ratio)
92-96 SC400
8 cyl (3.92 ratio)
92-96 MKIV Supra
w/o turbo; (4.27 ratio) Limited Slip
w/o turbo; (4.27 ratio)
w/turbo, AT (3.769 ratio) Limited Slip
97-98 MKIV Supra
w/o turbo; (4.08 ratio) Limited Slip
w/o turbo; (4.08 ratio)
w/turbo, AT (3.769 ratio)
w/turbo, AT (3.769 ratio) Limited Slip
Its already in your SC, can handle lots of power, and there are plenty of ring gear choices that will bolt right up from various I6's and v8's with varying transmissions. you can also get solid diff mounts for it. The lsd costs more, but you could probably buy a few of them for the cost of fabricating a new rear end setup.
here are all the ratios that will swap over to your stock case.
97-00 SC400 3.266
92-97 SC300
6 cyl, AT (4.27 ratio)
6 cyl, MT (4.08 ratio)
98-00 SC300
6 cyl, AT (4.27 ratio)
92-96 SC400
8 cyl (3.92 ratio)
92-96 MKIV Supra
w/o turbo; (4.27 ratio) Limited Slip
w/o turbo; (4.27 ratio)
w/turbo, AT (3.769 ratio) Limited Slip
97-98 MKIV Supra
w/o turbo; (4.08 ratio) Limited Slip
w/o turbo; (4.08 ratio)
w/turbo, AT (3.769 ratio)
w/turbo, AT (3.769 ratio) Limited Slip
05-16-12, 08:24 PM
#30
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Location: Kentucky
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My buddy did a 8.8 swap in his rx7 and a strong set of custom axles to hold 1000 HP cost close to $2k. For the lower rated axles he was still quoted somewhere around $1200.
I do like the idea, just don't know if it makes alot of sense in our cars.
I do like the idea, just don't know if it makes alot of sense in our cars.