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doug1548534725

.83 5th gear for T5

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doug1548534725

Does anyone know where I can get the .83 5th gear set for a WC T5? I've been told only one manufacturer makes them, and I can't seem to dig anyone up that will sell one.

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jeffburch

Tony Sarvis @ Astro Performance Warehouse.

 

jb

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CMC#11

Call Astro Performance and talk to Tony, great guy. 561-999-5578

 

I just upgraded my Tremec 5th gear 2 weeks ago. Got the parts from them and everything worked great!!

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doug1548534725

Wow, does $239 sound right just for the 5th gearset in .79? I know he's the only one making them, but wow.

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jeffburch

.79?

A tad tall? Huh.

 

Yes.

Buy a spare

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doug1548534725

He said that's the only size he makes for the trans I have, which doesn't sound right, but I'm not the expert. That's ok though, since with the extra power coming soon, I think I could go for a change to .79.

 

Maybe the replacement trans I picked up is special? The tag says it came out of a 92-92 V8 GM (1352-213).

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Dave Schotz

When I looked to have my original '89 1LE Trans re-done... by D&D Performance.. they said the Ford T5 allowed for the .83... but the GM trans needed machining of some sort... so .78 or .79 was all they could do I believe for the factory GM box.

 

Or at least that's the line they sold me!

 

Dave

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HMark

http://www.5speeds.com/t5/s80.html

 

$235 for a 0.83. That's what they go for. (for a Ford WC case)

 

There are some better gear sets out there, but they are 6 times that amount...

 

-Don

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Tony G

Doug,

Why do you need a 5th gear,our T45's dont even have the possibility of a close 5th, so gear your car for max fourth gear and you will be fine (I know your thinking Willow Springs,but my times were actually faster gearing to 3.42-3.55's and keeping it in 4th for that track).

I never have any other issues running 3.73's anywhere else.

Tony Guaglione

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jeffburch

The APW gear slip on the tail shaft really easy.

I had one from 5speeds.com that was a mutha to get on/off.

My tranny guy was much happier when I got him the APW set.

I agree with Tony, my next rearend will have 3.23's.

 

 

jb

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Dave Schotz

At MO Jeff... did you have to go to 5th gear at all w/ the 3.42's?

 

Thanks,

Dave

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cmc35

My SN95 (ex-Bondurant car) has a Tremec 3550 with a 3.55.

 

Most of the time, 4th is sufficient for the straights. But at our Rocky Mtn 'local' track (Pueblo) the front straight is 0.5 miles long, and I could really use a racing 5th gear.

 

Feedback from Tony/APW is that changing this tranny to a racing 5th is a little more involved than just the gear, but it doesn't sound too bad.

 

Any thoughts about alternatives?

 

thanks

chris

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jeffburch

Yes Dave.

Wasn't in it long though.

 

jb

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CMC#11
My SN95 (ex-Bondurant car) has a Tremec 3550 with a 3.55.

 

Most of the time, 4th is sufficient for the straights. But at our Rocky Mtn 'local' track (Pueblo) the front straight is 0.5 miles long, and I could really use a racing 5th gear.

 

Feedback from Tony/APW is that changing this tranny to a racing 5th is a little more involved than just the gear, but it doesn't sound too bad.

 

Any thoughts about alternatives?

 

thanks

chris

Chris,

I also run the 3550 w/ 3.55's. I had been putting off the 5th gear install for the last 3 yrs. b/c you also have to change the main shaft.

 

TWS counter-clockwise is not that bad but going clockwise you are in 5th for a long time!! I gotta beat Proctor at this next event, and we are going clockwise.

 

I did the swap 2 weeks ago to the .82 gear and it cost (cough) $525. There are two ways of doing the swap:

1) get a 28 spline main shaft (which is a little more expensive) or

2) get a 31 spline main shaft (a little cheaper) but then you have to bore the tail housing and get a new d/shaft yolk. This ends up being more expensive in the long run. It does however change the ratio to a .85.

 

I stuck w/ the 28 spline shaft and everything went together perfectly.

If you have any other questions about it let me know.

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cmc35

Michael,

 

Thanks, that sounds consistent with what I learned from Tony/APW.

 

-chris

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