700r4 aux cooler

First post here so forgive me if I'm not innthe right sub forum.

Its an 1982 k20 suburban 4x4 6.2 diesel with 700r4 transmission.

I work month on month off, sonit sits half the time, and when I'm home I daily drive it. I haul stuff in the cargo bay, but don't tow with it.

I've already burnt out the 3rd gear clutch pack and rebuilt it, pricy.

So, I've got some kit, lines, relay etc and a derale atomic cool kit part number 13950.

The fan and cooler look smaller than I was expecting. I watch youtve videos on how others have installed it and they all seem to have bigger kits from the hyper cool 15000, they are stacked plate kits as opposed to plate and fin kits.

So, I'm.reading online and I'm worried I've purchased the wrong kit, 

I guess I'm kinda looking for assurance that this kitnis more than adequate, I don't wanna walk the line of "oh it might be ok" I wanna have more than enough cooling capacity

I guess I could just buy another kit and use the one i currently have for engine oil too.

Anyways, thanks for reading and thanks in advance for the replies folks!

Cheers,

A fan-cooler can be significantly smaller than one that's just passively in the grille stack, and you can put them anywhere. Plate coolers are also a lot more efficient than tube & fin, but that one is pretty small. I'd say it's more targeted at a drag car rather than something with high sustained loads/temps. It will definitely help, but no way to know how well until you try, and the only way to quantify the effect is to add a trans temp gauge. Adding fluid capacity with a deep pan will also help; if you do that, consider running a cast aluminum pan (Summit, ATI). They add rigidity to the case and cooling capacity by direct heat transfer, plus it's easy to drill & tap for a temp sender.