I just got a 700R4 that was rebuilt to stock about 3800 miles ago, But it has been sitting in a garage for 2.5-3 years.

Before I put this in my car I'm going to install a transgo shift kit. I was wondering if it's worth the extra money to get the transgo kit from Probuilt? Also, what other "upgrades" do you recomend?

Probuilt's trango kits are definitely worth the extra money! He custom tailors the kit to your engine, rearend gears, etc. I'd also recommend a corvette servo, but I'm pretty sure he includes that in his kit too, so it's already covered. If you want to be able to stay in 4th gear at WOT, he can also tell you how to modify your TV sleeve to do this for less than $1.00. The vettes got that TV sleeve stock, but it's easy to modify ours to do the same thing. The other thing you might want to consider getting from him is the .500 boost valve, and the .294 intermediate valve. These will increase the line pressure in your trans for harder shifts w/less slippage. They're easy to change too. You can access them while you're putting the shift kit in. If you do these mods, you should have really nice 700r4 by the time you're done for about $200 in parts. Of course, if it's in your budget, a stall converter is always a nice upgrade too. If you do get a stall converter, make sure to get an external trans cooler to run with it, since they create more heat in the trans. I've talked to Dana at Probuilt a couple of times, and you can't go wrong going through him for your stuff. He's awesome!

Hey Pat

Thanks for chiming in, looks like everything is covered in the kit.

http://www.700r4l60e.com/store/custo...&cat=28&page=1

I was just wonder what he adds to the transgo kit. Like whats different than if I just ordered the kit from Summit Racing?

The Torlon checkballs and the Acumulator Pistons are not in the TransGo Kit.

Whats the advantage???

Torlon Checkballs do not damage the seperator plate.

IMO, your seperator plate is probably already damaged/worn. So grab a new TransGo plate. They are hardened already so they can withstand normal checkballs. But i would still use the Torlons since they seal slightly better.

Over time, the accumulator piston will wear out on the stainless steel acumulator rod. Once they wear too much they will leak fluid past and give sloppy shifts. New ones are good if yours are worn (pretty likely)

They also make pinless accumulators with dual seals, they can be found on ebay for cheap.

I am no expert so Probuilt would have better info. This is just what i have learned from the internet and as working at a tranny shop.

Thanks IROC!!!

The tranny only has @3800 miles on it after a stock rebuild, been sitting for 3 years. I just drained it a week ago so I could transport it.But I still think I should just buy it. Any other mods I should do before I put the tranny in the car?

Dana actually combines two different transgo kits to give you the best kit. His kits are a combination of the transgo 2-3 reprogramming kit, and the transgo jr. kit. Then of course he adds the torlon checkballs, corvette servo, and the 1-2,3-4 accumulator stuff. I'm switching mine to a manual pretty soon here, but if I was going to stay with the 700r4, I'd definitely spend the extra for one of his "custom" shift kits.

Sorry for the hijack but on the probuilt kit is says for 88-92. I have an 87, will this kit work for me or what do i need to do to make it work?

Just call Dana before you purchase your kit and let him know it's for an 87 model, and he can make the necessary changes for your application. He prefers the 88-92 700r4's due to the improvements GM added to them in those years, but he can sell shift kits and full rebuid kits for the older ones too, you just have to ask.

Thanks Pat!