Drivetrain 3650 To Tko 600 Swap Questions......

Discussion in 'SN95 4.6L Mustang Tech' started by jetmech807, Jul 16, 2013.


  1. jetmech807

    jetmech807 Mustang Master

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    This is for my 03 GT. Getting ready to order my TKO and have a few questions. Searched this site and every other mustang site and there seems to be conflicting answers everywhere. Have bell housing and clutch so that's not an issue. Question one, drive shaft spacer, yes or no? Number two, reluctor ring for speedometer, will the one in the TKO be right or do I need something different, also, will speedo elect. plug fit the plug on the TKO? Three, how much modding does the cross member need, as in, output shaft height and crossmember location. Thought this was a pretty straight forward swap, but so sure now. Thanks...

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  2. Mattstang04

    Mattstang04 Active Member

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    Im hoping if this thread hangs around a little longer, you'll find some answers. I'm kinda interested to hear what goes into the swap as well. 3650 won't last forever. bump
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  3. jetmech807

    jetmech807 Mustang Master

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    Ordered the TKO tues morning. Will report back what is needed when I do this. Ordered a drive shaft spacer just in case. Emailed Tremec tonight about the speedo. Maybe they'll know, maybe not. Stay tuned. My 3650 grinds about 75% of the time going up or down into second.

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  4. usaf_branham

    usaf_branham Member

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    ask d&d performance. they have been dealing with tko & t56 swaps on our cars for years.
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  5. jetmech807

    jetmech807 Mustang Master

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    Finally got off my lazy butt.........and paid someone to do the swap. I've come to the conclusion that I just don't enjoy working on cars any more. I finished off second in my 3650 the wed before thanksgiving.
    Everything went smooth. Only problem is the starter makes alot of noise with the new bell housing. Went with a steel blow proof piece. Nothing in the directions about adjusting the starter. It's gotten alot better but still noisy.
    What I used:
    Tremec TKO 600 with road race gearing
    Quicktime Bellhousing
    Steeda driveshaft spacer
    Pauls High Performance cross member adaptor. Worked great, no cross member fab required.
    Spec Stage 2 clutch
    Ram B/S flywheel
    MGW shifter
    Motorsports pilot and TO bearings
    New back up light plug from CJ's

    The gearing in this thing kicks that 3650's ass in so many ways. No more falling on it's face when shifting to second. An overdrive I can use below 80mph.
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    85rkyboby likes this.
  6. Mattstang04

    Mattstang04 Active Member

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    So how did the speedometer conundrum play out?
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  7. jetmech807

    jetmech807 Mustang Master

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    Pluged in and worked as advertised.
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  8. usaf_branham

    usaf_branham Member

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    nice... have you started working on installing the KB yet?
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  9. jetmech807

    jetmech807 Mustang Master

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    No sc yet. Cash flow issues. It was the next thing I was gonna do, but I found a guy with an 04 Cobra that will swap IRS for SRA. Gonna do that, then the KB.
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  10. usaf_branham

    usaf_branham Member

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    I think I may have seen your car last night. Was it parked at the NDI lot?
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  11. jetmech807

    jetmech807 Mustang Master

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    That's mine!
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