Tremec swap & others....

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Greg55_99

New Member
Apr 2, 2005
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I've posted this before. There seems to be a LOT of gents growling about losing R154's and W58's. As a possible solution, try the Tremec TKO 500 or TKO 600.

This $215 adapter plate from OTT Industries can be used to bolt the GM pattern Tremec's up to a NA 7M W58 bellhousing.

http://www.ottindustries.com/22re-sm.htm

sm22re.jpg


tremec_tko1.jpg


http://www.fortesparts.com/gmtremec.html

Gear Ratio's

TKO 500 - 3.27 1.98 1.34 1.00 0.68 - 500 Ft Lbs
TKO 600 - 2.87 1.89 1.28 1.00 0.64 - 600 Ft Lbs
R154 - 3.25 1.95 1.30 1.00 0.75

Price: $1782
$300 - Shifter

The adapter will also work with a Richmond 6-speed:

RG6RF.jpg


Gear Ratio's

3.28 2.14 1.57 1.24 1.00 0.76 4.79 - 450 Ft. Lbs.

Price $2900 with shifter.

Now that IJ is using a Tremec, maybe you gents won't be so nervous about using one too.

Greg
 
jbsupra89t

jbsupra89t

Achieving Balance...
Mar 30, 2005
544
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NJ
We can use the T56 Tremec/BW from the LT1/LS1 F-bodies? If so this is VERY interesting... that's a TOUGH transmission...
 
G

Greg55_99

New Member
Apr 2, 2005
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jbsupra89t said:
We can use the T56 Tremec/BW from the LT1/LS1 F-bodies? If so this is VERY interesting... that's a TOUGH transmission...
Click to expand...

Nope. Adapter won't work with the T56. It doesn't have the standard GM four bolt pattern.

Greg
 
M

mk3ukr

New Member
Apr 12, 2005
292
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Odessa, Ukraine
mk3ukr-supra.net
Excellent info, good to know there is alternative to going auto.
How it fits into the tunnel, any modification required? Do we need custom driveshaft for it?
I can't find how heavy R154 is. Is TK600 (105lb) heavier than R154?
Make it sticky :icon_bigg
Thanks
Vladimir, 89T
 
Stretch

Stretch

Tallest MK3 driver ever!!
Mar 30, 2005
1,275
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36
37
Toronto, Ontario
I have absolutely no idea about these transmissions, but could someone tell me if any of them are 6 speed? I always wanted one for the 7m.
eric
 
Brewster

Brewster

So it goes.
Apr 15, 2005
1,156
0
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38
Morgantown, WV
Stretch said:
I have absolutely no idea about these transmissions, but could someone tell me if any of them are 6 speed? I always wanted one for the 7m.
eric
Click to expand...

The Tremec TKO 500 & 600 are 5-speeds. The T-56 is a 6-speed, but will not work with this adapter as previously mentioned.
 
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bkma71

supra coupe
Jun 7, 2005
91
0
0
37
troutdale, Oregon
this is intresting! So if it bolts up to a w58 bellhousing that means using a w58 style clutch and pp correct? If so Im not to into the push style clutch realse but if it will work with r154 style pp and clutch this will be a very nice alternative as Im sick of problems with the r154 (bent clutch forks) and what not but I hate autos even if I do drag my car. And the cost of a full rebuild on the r154 I got priced was well over 2k which just doesnt seem cool to me.

edit- Will this require any other change such as master or slave cylinder?
 
G

Greg55_99

New Member
Apr 2, 2005
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MA
z1turbo said:
umm, why does the website state that that plate is for a 22re's w56 bellhousing?
Click to expand...

The adapter is for the GM SM420 4WD transmission to be bolted up to a W56 bell. It so happens the SM420 has the standard GM four bolt pattern, same as the T5, Muncie, Saginaw and Tremec TKO. Since it bolts to the W56, it also bolts to the W58.

Get in touch with them. You can't use the clutch disk with the kit anyway.

Greg
 
spoolme

spoolme

supra4umsfreak
May 9, 2005
320
0
0
Roswell, NM
well there was a post not to long ago about the T56 wasnt there? thread was called like "6 speed 7mgte" something or the other...i dunno.
 
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