The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-05-2011, 05:38 AM   #1
rcbildr
Registered User
 
rcbildr's Avatar
 
Join Date: Sep 2000
Location: Gold Bar, WA
Posts: 1,216
700R4 advise needed

My 83 shortbed 4x4 diesel needs transmission work and I'm wondering if I could get away with just a repair or should I save up and do a full rebuild. I bought the tranny with about 2000 miles on it and supposedly it was built to the hilt...beast sun shell gear, corvette servo, shift kit, all the good stuff. When the trans was shifted in to drive there was always a little delay for it to engage but other than that the trans worked great and you can feel the shift kit....I had a tranny shop help me confirm the torque coverter was locking up too. Well that little delay for drive to engage is what bit me. I was in a rush one day and I put it in drive and gave it some serious pedal before it fully engaged and when it did it chirped the tires....I know it was a stupid thing to do.

Now the truck doesn't want to go backwards when I put it in reverse and it goes forward in neutral. I was told the forward cluthes are messed up. So should I have the trans completely rebuilt again or try to repair what's broken? It's been parked ever since because I was told that kind of damage can generate metal shavings in the tranny. How expensive is it nowadays to convert over to a 4L80E? Any help will be greatly appreciated. Thanks!!!
__________________
My Projects:
1960 GMC 1/2ton with 305 V6 (daily driver)
1963 Chevy 1/2ton 2wd...converting to 4x4
1967 Suburban 1/2ton 2wd

My Girlfriends Projects
1985 Chevy Suburban 3/4ton 4x4 with 6.2L diesel, 4" lift, converted to TH-400, Warn Premium manual hubs, & Wildcat 315/75/R16 tires. (daily driver)
1978 Camaro Type LT with a Marine 350 & vortec heads, Rochester Carb, & roller cam
1978 Camaro Z28
rcbildr is offline   Reply With Quote
Old 05-05-2011, 03:57 PM   #2
gchemist
BAD BOW-Silverado XST
 
gchemist's Avatar
 
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
Re: 700R4 advise needed

When reverse and 4th fail, it's time for a rebuild. The clutches are gone. If it does have the hardened parts in it, should get away with a simple rebuild kit. It should cost less than $800. It's really up to what the builder finds. A serious 700R4, takes some bones to build. The one behind my ZZ4 today costs $2300 to build. Parts alone make up most of the cost. It's cheaper to rebuild than install a 4L80E and controller. If your builder is a friend, $500 or less.
__________________
Gerardo a.k.a. Mad Chemist
Silverado XST videos
gchemist is offline   Reply With Quote
Old 05-06-2011, 06:41 AM   #3
motornut
78K & 79C Jimmys
 
motornut's Avatar
 
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
Re: 700R4 advise needed

Quote:
Originally Posted by rcbildr View Post
My 83 shortbed 4x4 diesel needs transmission work and I'm wondering if I could get away with just a repair or should I save up and do a full rebuild. I bought the tranny with about 2000 miles on it and supposedly it was built to the hilt...beast sun shell gear, corvette servo, shift kit, all the good stuff. When the trans was shifted in to drive there was always a little delay for it to engage but other than that the trans worked great and you can feel the shift kit....I had a tranny shop help me confirm the torque coverter was locking up too. Well that little delay for drive to engage is what bit me. I was in a rush one day and I put it in drive and gave it some serious pedal before it fully engaged and when it did it chirped the tires....I know it was a stupid thing to do.

Now the truck doesn't want to go backwards when I put it in reverse and it goes forward in neutral. I was told the forward cluthes are messed up. So should I have the trans completely rebuilt again or try to repair what's broken? It's been parked ever since because I was told that kind of damage can generate metal shavings in the tranny. How expensive is it nowadays to convert over to a 4L80E? Any help will be greatly appreciated. Thanks!!!
i wouldn't do a quick fix may cost you more later,and a rebuild may catch something else ready to go.....my first car was a 72 ventura....olive green ish.....then a blue one
__________________
John
1978 GMCJimmy4X4-350/203
1979 GMCJimmy4X2-305/350
motornut is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:30 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com