i need the part number for a corvette servo for my 700-R4. its ac delco right/?? ok guys thanks a million.

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Rick
90 Camaro RS 305 TBI
400 small block, Hooker 1 3/4 super comp long tubes, Random Tech Cat, Hooker aero chamber cat back on the way!!
TH700-R4 with Trans-Go shift kit
MacEwen Motorsports White Gauge Overlays
K&N Filter Charger (wooohooo)
GTS Headlight and Taillight covers
5% Limo Tint all around
Classic White Chevy Bowtie sticker on rear window
www.geocities.com/esvalenz

Man if my camaro were a rice-rocket all those mods would give me what...easily 50-60 hp!!!

 

You'll need these three parts:

8642079 Corvette Servo Piston
8673039 Corvette Servo Housing
8647351 Corvette Servo O-ring


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Black 88 GTA L98
New engine is in!
ZZ4 bottom end, Edelbrock 6085 heads, LT4 HOT cam, GMPP 1.6 RR's, ported stock TPI, SLP 1 3/4" headers, no cat, Dynomax cat-back
E.T.F.A Member #11

 

what do you have to do to change the servo?
Thanks

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90 IROC 5.7l (L98)
ram air, K&N's, air foil,Flows

LIKE A ROC

 

Check this out: Vette Servo

Would also reccomend installing the Pressure Regulator spring/TV Boost valve (coming soon).

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If you live in Southeastern US, check us out!
South East Thirdgen


ASE Master Tech + L1
Savannah, GA

'87 Trans Am
S/D TPI retrofit including functional PassKey,
22# injectors,
JET AFPR,
Ported Plenum,
TB Coolant Bypass,
SSM SFC,
Boxed LCAs,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
KYB Shocks

'97 Bonneville SSE

[This message has been edited by GMTech (edited November 20, 2000).]

 

there is only one seal in the whole thing to change?? gmtech i read your article but i was still unable to tell how many seals...ive heard many diff numbers...from 1-5 seals involved w/ the servo. also, is it possible for you to get an exploded view of all the components that are removed from the trans? i have no idea what the parts inside are called or what the look like but i think i have a bad seal in the servo so i would like to change it

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350, Comp 262, Edelbrock Performer intake 600 cfm carb and exhaust, headers

 

CamaroZ_85, there are acutally two seals that are involved. When I installed mine it was on a brand new tranny, so I didn't have to replace the o-ring on the cover. The one I listed is the one that goes around the piston housing. I don't have the part number for the cover o-ring, sorry.

GMTech, I can't wait for the TV Boost Valve and Pressure Regulator spring article. I actually bought these parts as well when I put my 'Vette servo in, but I didn't know exactly where they went, and didn't want to risk messing up my brand new tranny looking for them. If your instructions in that article are as good as this one, it shouldn't be a problem. Thanks.

------------------
Black 88 GTA L98
New engine is in!
ZZ4 bottom end, Edelbrock 6085 heads, LT4 HOT cam, GMPP 1.6 RR's, ported stock TPI, SLP 1 3/4" headers, no cat, Dynomax cat-back
E.T.F.A Member #11

 

There are actually four seals, two of them are O-rings that you will have to purchase. One is a Red O-ring as seen in the article, the other O-ring is a blue one for around the cover. -Edit- Let me just add to avoid any added corrections, there is a fifth seal, but you don't need to be concerned about it, unless you have a 4th gear concern, and that is the 4th apply piston, but you don't need to mess with it.

The other two are teflon, scarf-cut seals that come with the servo. I will update the tech article with an exploded view, and all the PN's. Thanks for the feedback.

I took awsome pictures of the other tranny mod, I hope they turn out.

------------------
If you live in Southeastern US, check us out!
South East Thirdgen


ASE Master Tech + L1
Savannah, GA

'87 Trans Am
S/D TPI retrofit including functional PassKey,
22# injectors,
JET AFPR,
Ported Plenum,
TB Coolant Bypass,
SSM SFC,
Boxed LCAs,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
KYB Shocks

'97 Bonneville SSE

[This message has been edited by GMTech (edited November 20, 2000).]