I had upgraded servos installed (corvette I think) and a shift kit. It shifts like a rock. It took a while to get the TV cable dialed in, but I have it shifting nicely. The lower first gear doesn't hurt either.

I might feel differently if I was driving it daily. I haven't gotten the speedometer connected yet, but I haven't really put in a lot of time trying. I did have some clearance issues with the Dana 300 I used. Short of a custom adapter, the Isuzu t-case will not bolt up to the 700R4. I used the Dana 300 with a stock NP208 adapter, which has some clocking built in. This put the T-case resting against the torsion bar. I ended up loosening the motor mounts, and re-drilling the stock cross member to pull the trans over 1/2" to clear the T-bar. This gave me a bit of driveline vibration, and the front driveshaft rubs the trans pan. Things get really tight with the offset trans pan, and the IFS. I'm running a shortened stock front driveshaft, so I could probably go with a smaller diameter and be OK.

These issues have helped to push me over the edge, so to speak. I plan to remove the torsion bars, and straighten out the drivetrain evanutally :evil:

I still need to get around to building a dust cover for the trans. Since the stock application had a passenger side starter, it won't fit with the starter on the other side.

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mondtster

· #5 · Dec 12, 2006

Andre75 said:
I'm running a shortened stock front driveshaft, so I could probably go with a smaller diameter and be OK.

Try looking into using a Scout driveshaft. They are about a 1" or 1.5" diameter shaft.

Also, what did you do for a starter?

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Andre75

· #6 · Dec 12, 2006

what did you do for a starter?

Stock starter. I left the flex plate in place, and spaced back the torque converter.

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mondtster

· #7 · Dec 12, 2006

Doesn't the starter bolt to the tranny on the 4l30? Or am I mistaken on that? I really haven't paid too much attention.

Got any pics of the bellhousing differences between the two trannys?

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Andre75

· #8 · Dec 12, 2006

Got any pics of the bellhousing differences between the two trannys?

Here is the stock tranny

and the 700R4

The main difference is the cut-away bellhousing on the 700R4, which makes lining everything up much easier.

The starter bolts up to the engine, and no modification is necessary. I do need to build a dust cover to fit the cut-away bellhousing.

Here is the swap thread http://forum.planetisuzoo.com/viewtopic.php?t=7504&highlight=700r4

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mondtster

· #9 · Dec 13, 2006

Thanks for the pics!

I saw your other thread that you linked to. I'm not currently a member over there so I never posted anything about it.

As for the starter, I guess I need to take a closer look at my truck. I glanced at it and it looked like the starter bolted to the transmission instead of the motor. That would mean that I could use the jeep a904 tranny I have in my truck without getting creative with the starter situation.

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Andre75

· #10 · Dec 13, 2006

You can see in the pic of the stock tranny that there is a bulge in the bellhousing for the starter. On the 700R4, the starter falls into the cut away area. If your new trans has a full bellhousing, it could be an issue if the starter is not on the same side. Might have to do some modification.

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