Nv4500 to cryo treat or not to cryo treat?

[mrgoodwrench]

Going to order my nv4500 trans in the next week here and the place im buying from offers cryotreatment of all internal parts for another $500. not a cheap option. My first reaction is to pass and just order the trans normal but i wanted to ask the experts here for opinions first. Its a good chunk of money more and im not afraid to spend more if its really worth it but if its not id rather use the money on other upgrades. I appreciate any opinions thanks mike

 

[sweetk30]

The little talk i have read over the years its more for BIG POWER use jobs .

Biggest 2 killers on nv4500 i have seen are wrong oil . And 5th gear nut back off .

And lots of guys find 1/2 qrt over full helps tge front input bearing lube and live much longer .

 

[mrgoodwrench]

No big power here im running the stock 350tbi now and might do a 383 some day but nothing crazy. My rig is heavy though probably near 8k loaded for long trips

 

[Bent77]

Going to order my nv4500 trans in the next week here and the place im buying from offers cryotreatment of all internal parts for another $500. not a cheap option. My first reaction is to pass and just order the trans normal but i wanted to ask the experts here for opinions first. Its a good chunk of money more and im not afraid to spend more if its really worth it but if its not id rather use the money on other upgrades. I appreciate any opinions thanks mike

These 4500s get run behind some high powered diesels, generally without issue aside from abuse

 

[mrgoodwrench]

These 4500s get run behind some high powered diesels, generally without issue aside from abuse

Thats what im thinking also. Kind of thinking i should skip the cryo but wanted to ask before i order.

 

[bp71k5]

Thats what im thinking also. Kind of thinking i should skip the cryo but wanted to ask before i order.

probably not needed. I even tried overfilling mine and it just spit the extra expensive lube out the breather tube.

 

[centexk5]

If 1500ftlbs of 3rd gear 4wd 20psi boosted launches in a 7000lb truck won't break a regular nv4500, then there's nothing you could do to your blazer to break one. Skip it and move on. I would ask them to fix the 5th gear nut on it though as those do back off. Most folks just tack weld it but they make other options.

 

[sweetk30]

and they got installed in 3500HD trucks from the 93-2002 body style gmt400 series and there rated at 15k gvw .

i would skip it and spend the cash on another more useful upgrade .

 

[mrgoodwrench]

Thanks for helping cement what i was thinking going to skip the cryo.