transmissions

joes sy

New member
Which transmissions will fit in these trucks I have did some searchs but way to many things came up. Will any 700r fit or does it have to be out of a sy/ty? thanks for any info
 

JKsSyclone

Active member
Re: transmissions

It depends on how deep your pockets are. The cheapest/easiest thing to do is have somebody like Waller rebuild your 700R. The problem is that the 700R can only handle so much torque so no matter who builds it, its always going to be prone to failure. The other option in to contact www.jsmanufacturing.com and do the 4L80 swap. It will cost you more in to start with but it will last ALOT longer than any 700R. :2cents:
 

George Blake

DONATING MEMBER
Re: transmissions

Any 4x4 700r4 that came behind a 4.3 or a 5.7 will fit and work.
If you want a cheap rebuild, it's very possible. If your putting down a consistent 650 HP, not a good idea. 4L80E will fit with Jeff's kit. I've built some using his kit as have other well known shops(Bowler Trans). There are some goodies available for the 4L80E that will make it the last trans you ever buy. Literally. :tup:
Sounds like you just wanna throw something in there to make the truck move though.
Actually it's cheaper to build a 4L80E (itself) than it is to build a 700r4. I can update everything in it and still come up cheaper than a fully built 700 and the thing hold up to more than any 700. The thing that gives the initial scare factor is the Gilbert shaft that you need...you have to buy now. The torque converter that you've been putting off, you HAVE to buy now. The computer is only $650 that runs it and that's not really a hinderance once you've pulled a governor 5 or 6 times. Then there's Jeff's kit. Makes it bolt in.
If you've got $15K in a motor, $2.5K in a turbo, why put in a $1500 trans and $200 torque converter? Does that make sense?
 

qbnkiller

Conflaguration Specialist
Re: transmissions

PMed you already...

If your tranny is working right now, keep it. Try to pick up a 'proper' core and build it. Then you will always have a 'spare' if the built unit fails. You can still drive the truck around while the trans is being built, too.
 
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