1994 K1500 blown 3 trans within a year???

[iEnding]

So I found a nice 14 bolt heavy duty rear end with 3.73 on it the went on a 98 z71. AFter trans rebuilt would this stop me from blowing the transmissions or is there other measures I need to take to be able to run my 315's?

 

[98_k1500]

Thats not going to make it indestructible, but it should drastically prolong its life.

 

[TylerZ281500]

14 bolt will help witht the bigger gears to get your truck moving without generating alot more heat in the trans, swap s straight forward and you can either run a conversion u joint or swap pinion yolks, neither are a big deal, as for trans cooler then hell yes, if it doesnt have it i put one on its just safe assurance, will that help fix your issues? i dont know i will tell you that you will for sure be generating alot less heat which the trans will like, but will it fix it? well i dunno none of us can be sure if your trans issues are overheating related or something that been wrong in the rebuild.

 

[iEnding]

I appreciate all the help. I have been told whats happening is 3rd gear is literally being burned out everytime. Im thinking its because its getting way too hot under load which I am in 3rd or OD most of the time due to satying between 40-60 everyday to work. So right now its between getting a 14 bolt and having the tranny rebuilt or selling it with just the rebuilt tranny.
I was thinking of upgrading to the 40l80e but not sure that would even bolt up to the 350?

 

[polar]

It will bolt up. The only thing that your gonna run into is controlling it. You will need a new tune

 

[TylerZ281500]

yes youll need an adapter for the 4l603 to 80 and have to swap input shafts on your tcase i do believe. you may be able to get by without a tune.

technically if your already missing gears then the rear will help the new rebuilt tranny survive so both need to be done.

 

[Jrgunn5150]

Fourwheeler mag did an article outlining the swap from 60-80

 

[highspeed]

Are you getting these 4l60s upgraded when they are rebuilt?

 

[iEnding]

mine is a 700r4.

 

[98_k1500]

^^^ Same upgrades apply.