How many miles on your stock 4R100?

[Scooter]

Our Excurison lasted 54k until it decided it was not longer part of this world. It had never pulled a trailer at the time.
My 2000 pu has 188k on it right now, and it pulls a 8500 lb. trailer 90% of the time.

 

[99SD]

150,000 doesnt like shifting on WOT

 

[Tail_Gunner]

Factory one crapped at about 165K of towing a 8K trailer.

Now have about 115K on my BTS.

 

[JRJ04]

107000 and I thought it was starting to go because I had a lot of flaring between 3 and 4, but after I got rid of the superchip, I realized it was the chip doing it. When I return it to stock, I can put it to the floor and it will shift right through every gear with no problem. Now that I have the predator, it shifts a whole lot better and I cant say that I've really hammered it to see if it slips but........I will tomorrow just to let you know!

 

[Tbar]

107000 and I thought it was starting to go because I had a lot of flaring between 3 and 4, but after I got rid of the superchip, I realized it was the chip doing it. When I return it to stock, I can put it to the floor and it will shift right through every gear with no problem. Now that I have the predator, it shifts a whole lot better and I cant say that I've really hammered it to see if it slips but........I will tomorrow just to let you know!

I have had a similar experience.

Mine also improved significantly after I installed the Sonnax/Tricumulator. I wonder how often a new kit should be put in?


Tbar

 

[CHPMustang]

I have had a similar experience.

Mine also improved significantly after I installed the Sonnax/Tricumulator. I wonder how often a new kit should be put in?


Tbar

I think the sonnax tricumulator kit is a permanent fixture but the fluid/filter needs to be changed every 25-30k if running dino fluid. Changed yours lately T?

 

[Tbar]

I think the sonnax tricumulator kit is a permanent fixture but the fluid/filter needs to be changed every 25-30k if running dino fluid. Changed yours lately T?

I will have to look. Changed mine the same day you did.........at a mod day. I am using synthetic.


Tbar

 

[fire245man]

266k and had 18,000lbs behind it every friday. was an early 99 with marbles in the TC. sounded like hell but ran like a champ! changed fluid every 20k

 

[blueoneton]

I have 63,600 on my 2002 F350 my stock 4R100. So far so good, however I have had the trans flush/filter changed prior to every 30,000 miles. I have thought about synthetic fluid but the trans shop I deal with stated it would be a good choice if I tow/pull alot, which I don't.

 

[patrickc]

My bone stock 4R100 let go at 155K miles second gear started to slip. New one has 85K miles of abuse and still going strong.