Transmission Help

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Transmission Help

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Transmission Help - 12/5/2007 5:59:25 PM

bobslsc

Posts: 11
Joined: 11/14/2007
Status: offline

I have a '93 GMC Jimmy with 4.3 and 4L60E transmission. The trans is starting to go. A friend has a rebuilt 700R 4x4 trans that he's willing to sell me. Can I swap this trans into my Jimmy? Will everything work like before? Any items that I'd have to change(wiring harness, switches....) Let me know. Thanks.

Post #: 1

RE: Transmission Help - 12/6/2007 7:19:31 AM

swartlkk

Posts: 15276
Joined: 5/1/2005
From: Waterloo, NY
Status: offline

The 4L60E cannot be replaced with a 700R4. While the mechanicals inside the transmission are very similar, the 700R4 was never electronically controlled like the 4L60E is.

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Kyle-

04 Rainier
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RE: Transmission Help - 12/6/2007 5:42:03 PM

bobslsc

Posts: 11
Joined: 11/14/2007
Status: offline

Thanks for the information.
Now he also has a rebuilt 4l60e that came out of a car. He said the swap is possible if I just swap the tailpiece sections. Is this true? Or does the swap require too much?

(in reply to swartlkk)

Post #: 3

RE: Transmission Help - 12/6/2007 5:57:53 PM

swartlkk

Posts: 15276
Joined: 5/1/2005
From: Waterloo, NY
Status: offline

While 'just swapping the tail sections' is true, it involves the changing of the tail shaft. The tail shaft comes out through the front of the transmission, requiring all of the internals to be removed. It isn't as simple as it sounds.

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Kyle-

04 Rainier
My Restoration Projects
Please Do Not PM for Tech Help

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Post #: 4

RE: Transmission Help - 12/6/2007 7:07:09 PM

Hanr3

Wheels & Tire Moderator
Posts: 3523
Joined: 5/11/2005
Status: offline

Generally it costs less in the long run to rebuild your current tranny. Most rebuilders will make it better then stock, especially if they take pride in theri work and offer a warrenty. The 700R4/4L60/4L60E tranny has been used in all rear wheel GM vehciles half ton and lighter since the early '80s. There are millions of them out there, litterally.

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"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
-President Ronald Reagan

'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My

(in reply to swartlkk)

Post #: 5

RE: Transmission Help - 12/7/2007 9:13:43 AM

blazinloud

Posts: 2463
Joined: 2/8/2006
From: Saskatoon, Canada
Status: offline

hence its rep as the most commonly rebuilt.

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RE: Transmission Help - 12/7/2007 4:22:43 PM

Hanr3

Wheels & Tire Moderator
Posts: 3523
Joined: 5/11/2005
Status: offline

and the best auto tranny on the market.

_____________________________

"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
-President Ronald Reagan

'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My

(in reply to blazinloud)

Post #: 7