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Cobra R Tremec 5-Speed Heavy Duty Transmission by Ford Racing
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2 13599
Recommended By Average Price Average Rating
50% of reviewers $1,350.00 3.5


Description: Tremec 5 Speed Heavy Duty Transmission

This is the same Tremec HD 5-speed manual transmission used in the 1995 Mustang Cobra R models with 351 5.8L engines. It features improved sychronizers and 350 ft/lbs torque capacity. Gear ratios starting with first are: 3.27, 1.98, 1.34, 1.00, .68. It requires a unique clutch housing M-6392-R58. To fit in 1979-93 use M-5059-A cross member.

To fit in 1994-95 use part no. M-6392-R58 Clutch housing. Modify vehicle cross member. Lengthen drive shaft 5/8 and use clutch fork E6ZZ-7515-A. Direct replacment part.

Part Number: M-7003-R58

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GT Member
Posts: 2,474
Registered: February 2002
Location: St. John's



Registered: October 2003
Location: ocala,fl
Posts: 14
Review Date: 10/18/2003 Would you recommend the product? No | Price you paid?: $1,200.00 | Rating: 2 

Pros: cant break,strong
Cons: rough,noisey

installation was a pain,had to cut crossmember to clear,strong trans,but shifts like crap.rough,notchy,noisey.would only recommend if you keep blowing world class t-5s

88 lx hatch,347 stroker,edelbrock carb,subframe connectors,strut tower brace,ceramic shortys,2 chamber flows,off road h-pipe,edelbrock cam,diamond clear front lights,tko trans,eibach road race springs,agx struts,c.c plates,billet interior,2 10" subs 1000 watts,glo gauges,urethane trans mount,white poneys,sumped tank,holley blue pump,ps91 coil,fms wires,v.c.,air cleaner,alum.driveshaft,lots of other crap i cant remember
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GT Member

Registered: April 2002
Location: Lompoc
Posts: 1312
Review Date: 4/26/2004 Would you recommend the product? Yes | Price you paid?: $1,500.00 | Rating: 5 

Pros: direct fit for a 94-newr
Cons: A tad noisy, not bad

This is the same trans from D&D Performance, a Tremec 3550.

I bolted one of these into my 94 Cobra. The shifter is located approx 1/2" forward from stock. Other than that it is a bolt in. You need to purchase the proper bell housing and fork. From D&D Performance, these come together for $169.00. The 3550 was $1195.00 and for the driveshaft needing to be lenghthen, D&D can provide you with a hub-centric spacer w/bolts for $69.00.

Performance is great! While doing a little spirited driving the Tremec 3550 (Cobra R) found every gear without any trouble. It is a tad noisy, but with some GM Sycromesh it's not bad!

Tony Berger
91 LX 337 Incon Twin Turbo
D&D Viper T-56 6 speed
Maximum Motorsports front to rear
94 Cobra
99 Lightning
88 SSP Secret Service
and it's JUST-N-LX
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