700r4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fabricator · 02-08-2002, 11:45 AM

I just bought a 89 blaser with the trans out. Was wondering if you guys had luck rebuilding these autos. I heard horror stories about the 700r4. Should i try to find a used one or get this one rebuilt.

firestarter_88 · 02-09-2002, 08:53 PM

Hey, I have an 88 GM...and when my tranny went i got a rebuilt used one...they still cost lots..like i paid 1400 CAN installed..

unless you can do the work urself..then just buy the parts and rebuild it urself

gchemist · 02-11-2002, 07:18 AM

Have a tranny built by a professional. I had mine first stock rebuilt again because a planned 400+ HP 350 SB. Find a local shop that has a good reputation. Just ask round town. I had a beefed up 700R4 for $1100. I could have gotten it for $650 but I wanted an all out tranny. Here is break down of my the parts: 13 vein pump, 5 gear planetary gears (stock have 4), extra 3/4 clutches, valve body shift kit, Corvette servo, beefed up reverse gear and extra wide band. I also use a 24000 GVW external transmission cooler. Use cooler. Heat is the major reason these transmissions fail. A 85+ core can be rebuilt with all the stuff need to survive in a Blazer.

If you need parts I bought a Vette servo from here www.bulkparts.com
------------------
Gerardo
1983 Custom Truck
TX Plates: "BAD BOW"
http://www.geocities.com/abetterchemist/

[This message has been edited by gchemist (edited 02-11-2002).]

02-08-2002, 11:45 AM	#1
fabricator Registered User Join Date: Dec 2001 Location: cinti, oh Posts: 70	700r4 I just bought a 89 blaser with the trans out. Was wondering if you guys had luck rebuilding these autos. I heard horror stories about the 700r4. Should i try to find a used one or get this one rebuilt.

02-09-2002, 08:53 PM	#2
firestarter_88 Registered User Join Date: Jan 2002 Location: Canada Posts: 11	Hey, I have an 88 GM...and when my tranny went i got a rebuilt used one...they still cost lots..like i paid 1400 CAN installed.. unless you can do the work urself..then just buy the parts and rebuild it urself __________________ 88 GMC long box regular cab...was 350TBI..now 305TBI for gas milage

02-11-2002, 07:18 AM	#3
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Have a tranny built by a professional. I had mine first stock rebuilt again because a planned 400+ HP 350 SB. Find a local shop that has a good reputation. Just ask round town. I had a beefed up 700R4 for $1100. I could have gotten it for $650 but I wanted an all out tranny. Here is break down of my the parts: 13 vein pump, 5 gear planetary gears (stock have 4), extra 3/4 clutches, valve body shift kit, Corvette servo, beefed up reverse gear and extra wide band. I also use a 24000 GVW external transmission cooler. Use cooler. Heat is the major reason these transmissions fail. A 85+ core can be rebuilt with all the stuff need to survive in a Blazer. If you need parts I bought a Vette servo from here www.bulkparts.com ------------------ Gerardo 1983 Custom Truck TX Plates: "BAD BOW" http://www.geocities.com/abetterchemist/ [This message has been edited by gchemist (edited 02-11-2002).] __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

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