700r info. Good deal or not?

[SquareRoot]

Contemplating buying a good used 700 out of an 87 burb. I plan to rebuild it and upgrade any OEM weak spots. This is a 4wd burb. I'd like to throw it in my 85 in place of the t400. I'm assuming it will bolt up to my 208 t-case and I assume it has a lockup convertor.

For $250, I think it's a deal. Just looking for others opinion and what to look out for

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[SquareRoot]

We'll...scrub this. Just discovered 700's output shaft won't mate to my 32 spline inputs on my 208 or 205 without a $400 AA adapter/output shaft. Deal breaker.

 

[Turbo4whl]

We'll...scrub this. Just discovered 700's output shaft won't mate to my 32 spline inputs on my 208 or 205 without a $400 AA adapter/output shaft. Deal breaker.

Yes $250 is a good price, but the 700R4 is nowhere near as strong as the Turbo400. Yes the 700R4 has a lower first gear, yes the 700R4 has overdrive, but you will need to keep a spare trans if you don't want down time. Good call on breaking the deal.

 

[K5_489]

The lower 1st really isn't that much of a gain when you consider the large gap between 1st and 2nd gears. Even the drag guys have pretty much abandoned the 700 in favor of the 200-4R as a result of this.

If you really want OD, the 4L80E is the way to go, with a standalone trans controller if you want to maintain auto shifting functions. If $400 is too much the adapter, you're _really_ not going to like what it costs to properly build a 700R4 that fixes the weak parts, and the cost of a standalone controller for a 4L80E will start to look a heck of a lot more appealing. Not to mention, a bone stock 4L80E is much stronger than even a mildly built 700R4, and will stand up to more abuse as well.

It was a no brainer to put one in my K5 when the 700 started having issues, though I'm running mine as a full manual, and I regret none of it. I don't even notice the higher 1st gear.