transmission options

[BRZoomTX]

Originally Posted by xoBethxo

Any new info on transmissions being swapped in? 30k miles and our 4th gear already has grinding at 31k miles.

Headers, cai, catback only. Haven't even tuned it yet, though I have the OFT to tune the car. Waiting to tune it so they don't try to weasel their way out of fixing the trans.

t56 based swaps seem to be the go-to for a lot of people lately, including myself. Trying to find a shop who is interested in the project, actually capable of doing the swap, and having time for a new project is difficult however.

t56 and v160 are the two swaps I hear about the most.

[spitfire481]

i have a faceplated tko600 going in with my new motor. should be done by spring. its a custom bellhousing though

[xoBethxo]

Any price estimates on complete swaps for the T56 Magnum XL and V160?

If it's just dropping the transmission and shifter assembly out and replacing with the new transmission it's not a big deal. ECU issues or anything? Will at least need the gear ratios adjusted in the computer to correct the speedometer I'm assuming. Custom driveshaft needed or does the oem one work for either of these swaps?

Thanks.

[spitfire481]

Originally Posted by xoBethxo

Any price estimates on complete swaps for the T56 Magnum XL and V160?

If it's just dropping the transmission and shifter assembly out and replacing with the new transmission it's not a big deal. ECU issues or anything? Will at least need the gear ratios adjusted in the computer to correct the speedometer I'm assuming. Custom driveshaft needed or does the oem one work for either of these swaps?

Thanks.

v160 swap will run you around $5k with the custom clutch, driveshaft, shifter adapter, mount, bellhousing adapter. plus $5-8k for a v160 itself

the tremec swap depends on what you do for a custom bellhousing. Im $3k into a faceplated tko600 trans and $1200 for the clutch setup. then $500 for a now discontinued Hurst shifter relocator to put the shifter in the correct spot. the magnum XL should put the shifter in the oem location, or close to it if you went with that instead. the bellhousing and clutch components would be different than the TKO though

[xoBethxo]

Oh my. Someone needs to make an affordable option for this. I'll never push over 400 wheel in this car, not worth spending anywhere near 10 grand for a transmission swap.

[Gear_One_Performance]

The tremec is a nice all around box but the v160 feels a lot smoother in my opinion. Though when you're pushing crazy power levels people tend to care less about that and more about the transmission just surviving.

[spitfire481]

Originally Posted by Gear_One_Performance

The tremec is a nice all around box but the v160 feels a lot smoother in my opinion. Though when you're pushing crazy power levels people tend to care less about that and more about the transmission just surviving.

100% agree. the v160 is a great trans for this platform, just price and availability sort of kill it. I wouldn't do a tremec without faceplating the gears in anything that revs higher than like 5500. you get some clunking and whatnot but its plenty streetable, but not as nice as a v160 on the street

[Spartarus]

Originally Posted by spitfire481

100% agree. the v160 is a great trans for this platform, just price and availability sort of kill it. I wouldn't do a tremec without faceplating the gears in anything that revs higher than like 5500. you get some clunking and whatnot but its plenty streetable, but not as nice as a v160 on the street

I'm seriously curious about this, because this rumor has persisted on this forum for well more than a year.

Where did the rumor start that the t56 won't shift at high RPM?

People have been swapping the magnum into the S197 Mustang for 4 years, revving to 7500 stock, and nobody has had problems. That's every bit of the revs that our little 2.0 sh*tbox engine makes and more.

People have taken the (otherwise stock) Boss 302 to 8250 RPM's with a T56 magnum XL swapped in and they shift just f*cking fine. With no internal mods.

I'll remind everybody that this is also with a larger diameter, heavier clutch disc that is harder on the synchros, and a bone stock HP of 444 (420 for the base GT)

[spitfire481]

Originally Posted by Spartarus

I'm seriously curious about this, because this rumor has persisted on this forum for well more than a year.

Where did the rumor start that the t56 won't shift at high RPM?

People have been swapping the magnum into the S197 Mustang for 4 years, revving to 7500 stock, and nobody has had problems. That's every bit of the revs that our little 2.0 sh*tbox engine makes and more.

People have taken the (otherwise stock) Boss 302 to 8250 RPM's with a T56 magnum XL swapped in and they shift just f*cking fine. With no internal mods.

I'll remind everybody that this is also with a larger diameter, heavier clutch disc that is harder on the synchros, and a bone stock HP of 444 (420 for the base GT)

If they didn't have problems, nobody would faceplate them. If you search around, it's very common. Hell, even tremec told me good luck when I talked to them when I said I was revving to 8500-9000. reason why I spent half hour on the phone with Liberty discussing options because they had the best reviews on forums like yellowbullet for failed synchro tremecs

[spitfire481]

And for what it's worth, our built ls2 with stock t56 shifted like crap at the track in our Frs.

[BRZoomTX]

If these rumors are from people who have done the swap on an 86 then I would be more inclined to say it is fabrication fitment error. I've driven three different cars using the Magnum XL from AM, one of them being my old Roush, and this is the first I'm hearing of high rev shifting issues with this transmission.

Buddy is running 750hp on a 76mm precision with the magnum XL and he has no issues, and that is winding out the 5.0 aluminator out to 7800rpm. I've personally driven the car and did not have any issues whatsoever. Shifting at redline is butter smooth. It is definitely built better than the stock mt82 and is capable of revving just as high.

Maybe its an issue specifically going in the 8k+ range. Up to that level however, my experience with three different magnum XL's have been positive.

[spitfire481]

I'm also talking about the TKO line, which is what I have. I don't own an XL

[BRZoomTX]

Got it.

[Spartarus]

The TKO has a completely different synchro design. The TKO600 is all old-school single cone synchros. Believe some may have doubled up first and second but im honestly not all that familiar with thd TKO.

And all of the post F-body t56's (GTO, CTS, SSR, magnum) have triple-cone synchros.