Should install vette servo or return it?

[scottg918514]

I ordered the vette servo kit w/ longer pin from Oregon Performance today.

I've been reading and I'm on the fence.

1. my Tahoe has 114K on tranny, if original, not sure on that since i got it with 105K
2. I tow a boat several times in the summer, sometimes on long trips, 5+ hrs. and every few years, down to GA, 11 hours.
3. Mine already has some slight slippage from 1 to 2, very minor.

Seems that I shouldn't use the new longer pin, why?

 

[01HDtahoeNJN]

no clue good luck i was just recommended the vette servo install

 

[Physh1]

I installed mine with 155k on the stock tranny with 1-2 slip. Been perfect. I'm not sure about the towing thing but I don't forsee any reason to not do it.

Cameron

 

[brad6603]

I installed one in my 2001 tahoe with 105K on the tranny. 2 months later going to work one morning i lost all of the transmission fluid out of my trans. I had it towed to the dealership and once on the rack we found out that the case cracked at the location of the servo. The technician said either the snap ring was not put back in correctly on the servo cover or the case had a weak spot at that location and the increased fluid pressure caused it to crack and bust. Either way i lost a few thousand dollars over a $20 part.

 

[Physh1]

I installed one in my 2001 tahoe with 105K on the tranny. 2 months later going to work one morning i lost all of the transmission fluid out of my trans. I had it towed to the dealership and once on the rack we found out that the case cracked at the location of the servo. The technician said either the snap ring was not put back in correctly on the servo cover or the case had a weak spot at that location and the increased fluid pressure caused it to crack and bust. Either way i lost a few thousand dollars over a $20 part.

I've heard that before...always been an install problem.

 

[Cartwright]

Put it in. Just make sure you seat the o-ring correctly. Take your time and if you think you messed up the ring get a new one.

 

[sumo]

had mine done last summer. I Had mine done at a local tranny shop. Every time i change the oil, i always peak at that area to make sure its not leaking. So far so good. They also told me that the longer pin wasnt really needed.

 

[dwmmatt23]

I bought one when i had my two door tahoe and never installed it, so i have a brand new one sitting at home that i want to put in as well. Im at 107k and i read all these horror stories of cracked cases and everything else but the more you read on it proves it was caused by the istall not actual part. This part is used on a vette, i know that it will work wonders in our cars too so I just need to quite being lazy and take it to a shop to put in. I was going to do myself cause its pretty easy but seeing what could happen with improper install id rather pay @$40 for a trans shop to do it right.

 

[blueflamed03]

cracked cases I bet are from user error when installing. Have a tranny shop do it for a few bucks. Had mine installed a couple years ago, no issues. As far as speeding up the shifting, that helps prolong life, more than decrease if installed correctly.

 

[andrew383]

Go ahead and install but dont use the pin,the stock pin works fine..

 

[Jay]

The longer pin is only needed if the reverse input drum (the part the band engages) has been turned down. I personally find the pin useless simply because turning the RI drum down is a bad idea. It's cheap, if you're inside the trans just put a new RI drum in it.

Corvette servo helps on the 1-2 and 2-3 shifts only (and is a recommended part... install it!). For towing you should add the sonnax 4th servo. And with 100k+ miles, put a sonnax .490" boost valve in it... gives a little more pressure over stock and by this mileage the stock boost valve is worn and leaking. Meaning it isn't putting enough pressure on the regulator valve, giving you lower average line pressures.

The three things that predominantly kill a high mileage 4L60E are: worn boost valve (drops line pressure), cracked/leaking 1-2 and/or 3-4 accumulators (stock plastic pistons crack and drop line pressure), and a worn out PWM circuit for the torque converter (drops line pressure). The final result is almost always a blown direct clutch... meaning no 3rd or 4th gear.

 

[Rivieraracing]

This is some great info, sure wish Jay was still on here, he was very knowledgeable when it came to our transmissions!!

 

[sumo]

people come and go

 

[Rivieraracing]

True, but wish a few of them would have stayed!!

 

[Narco]

so this is cheap to install? im thinking about it

 

[ezdaar]

its worth every penny, I did vette servo and sonnax od servo.
As well as a full 14 quart fluid flush, also used some shudder stop stuff.
My trans shifts perfectly, its consistent and predictable.

The 1 out of 50 ppl that have problems goes along with any part change on any vehical.

 

[screamin86]

i did it to my yukon xl at 80k and still taking a beating at 103k did bang the rev limiter one time when downshifting to 2nd at a 70mph punch when passing a semi. never done it sence but ive put 50k hard miles on this thing just wating for it to puke so i can put in a built 4l60e and stall lol. i stuck the vette servo in the 700r4 in my 92 z28 it has 254k on it and now barks second every time.