Gm problems with transfer case pump ring

[Terrellsherilyn]

I been reading about this pump ring after market kit fix.. that its a sure thing that if you don't change the oem ring you will sooner or later blow out a hole in the transfer case due to fulid leaking out

 

[blk smoke lb7]

Pretty much.It got me and both my parents work trucks.1 Of which has never seen a winter and should have never been in 4x4 and their other truck is driven so easy it's amazing he can even vet it to 55, he is an old truck driver and drive es real easy.I expected mine to go because I was pretty hard on it.

 

[blk smoke lb7]

And its "pump rub fix"

 

[jlawles2]

Pump rub is not dependent on 4WD use as the pump is on the output shaft of the transfer case. Mine wore a hole in the case at 103k and probably had less than 1k miles in 4WD it.

 

[z79outlaw]

Imagine how I felt when I got hit with pump rub in my 2wd work truck most embarrassing thing ever.

 

[blk smoke lb7]

Imagine how I felt when I got hit with pump rub in my 2wd work truck most embarrassing thing ever.

 

[Terrellsherilyn]

So in a nut shell it's a bomb that you see on the side of the road it could go off at any time so I guess ill get it done ASAP

 

[Dirtymaxx03]

Pretty much yes. It's just waiting for the worst possible time to make its move.

 

[TLyons90]

It's this with only certain year of duramaxs or all?

 

[Shieldsinc]

Best thing to do is throw your transfer case away and put a np273(ford) tcase in it. I've been fighting a leaky 261 for 4 yrs. bout to convert mine over

 

[jraymer]

01 to 07.5.

i got a hole in my tcase from it. fixed it with silicone a year ago. lolz

 

[LWATSON]

The kit is not hard to install. The case doesn't weigh much, you just pull the drive shafts, the transmission cross brace and unbolt the mount and seperate from the trans. Only trouble I had was I forgot to remove the speed sensor and the case wont split with it in place. Removed the speed sensor and split the case, the install is straight forward.

 

[blk smoke lb7]

I have not seen it but I've heard people refer to a install video on merchants web site.

 

[Terrellsherilyn]

Is it possible to put kit in and leave transfer case in place .pull rear shaft and pull tail end of transfer case out then install new kit

 

[MadMaxx61]

01 to 07.5.

i got a hole in my tcase from it. fixed it with silicone a year ago. lolz

01-07 the 07.5+ (NBS) do not have this.

Is it possible to put kit in and leave transfer case in place .pull rear shaft and pull tail end of transfer case out then install new kit

take a look at how it goes in.

http://www.merchant-automotive.com/transfer-case-pump-upgrade-kit.aspx

http://www.merchant-automotive.com/tech/tcp.pdf

 

[rms2012]

Did mine today - these ratcheting snap ring pliers are the way to go!

The PVC pipe was nice to get it started.

 

[nmeyer414]

subd

 

[LWATSON]

Is it possible to put kit in and leave transfer case in place .pull rear shaft and pull tail end of transfer case out then install new kit

I dont think the cross member with the mount on it will allow this, its in the way. Its really not hard to pull the case you'll probably spend an extra hour total pulling it and putting it back in.

 

[chevyburnout1]

That snap ring on top has got to be a pain to undo with the case still in the truck.

 

[LWATSON]

That snap ring on top has got to be a pain to undo with the case still in the truck.

Didn't think about that, that snap ring is a pain when its on the workbench.