Need k10 transmission mounts

[Jered1987]

Im needing the two upper and lower mounts in rubber not the plastic crap and i need all the stuff pictured with the can someone recommend somewhere besides ebay?

[akart]

Summit Racing,Amazon,Jegs

[sweetk30]

lmc / brothers truck parts / lots and lots of online places / even your local napa / car quest / advanced auto / auto zone .

why not polly ?

lots of guys have been noticing the aftermarket rubber stuff is NOT holding up near as god as oem . even some 4x4 guys have failed engine mounts after 2-3 wheeling trips .

i run polly and have had no problems for years .

here is lmc page 167 in the 73-87 truck section catalog http://www.lmctruck.com/icatalog/cc/full.aspx?Page=167

[Jered1987]

Originally Posted by sweetk30

lmc / brothers truck parts / lots and lots of online places / even your local napa / car quest / advanced auto / auto zone .

why not polly ?

lots of guys have been noticing the aftermarket rubber stuff is NOT holding up near as god as oem . even some 4x4 guys have failed engine mounts after 2-3 wheeling trips .

i run polly and have had no problems for years .

here is lmc page 167 in the 73-87 truck section catalog http://www.lmctruck.com/icatalog/cc/full.aspx?Page=167

Ok well if you say they are good enough thats enough for me, i hadnt been sure if they would have enough cushion. But i think ill get them from summit then.

[sweetk30]

some say you can do mix - n - match on rubber and polly but some say all of 1 no mix - n - match .

the polly is firmer but worth it i think . the replacement engine mount inserts fill 98% of the clamb shell so there is no major droop in them like rubbers . they can be changed with out pulling the engine . just takes some time and good floor jack and length of 2x4 or 4x4 and tilt 1 side up at a time . remove it change it . install and do the other side .

and check that famous auction site . lots of times there cheeper and free shipping unlike other places that make a min price before shipping is free .

[Jered1987]

Ordered

I forgot that when we put new gaskets on the adaptor plate and and between that the mounts were about 20% condition like obliterated and i might be missing the one "tube " for the bolt
So that might be why my leak is so bad ...last time before i quit driving it the leak was so bad
All the transmssion fluid leaked out in about three hours after driving it to work.

[Jered1987]

Originally Posted by sweetk30

lmc / brothers truck parts / lots and lots of online places / even your local napa / car quest / advanced auto / auto zone .

why not polly ?

lots of guys have been noticing the aftermarket rubber stuff is NOT holding up near as god as oem . even some 4x4 guys have failed engine mounts after 2-3 wheeling trips .

i run polly and have had no problems for years .

here is lmc page 167 in the 73-87 truck section catalog http://www.lmctruck.com/icatalog/cc/full.aspx?Page=167

So I got the kit from summit... are these the bolts ?got from tsc.
And what is the deal with the mount is that a cab mount my grandad put on?
With how bad of shape the mounts are in would this be the problem why I have a leak? Thanks

[sweetk30]

double check but you should not be metric bolt for the 2 that hold the adapter to the crossmember . should be 1/2" course thread x 3 1/2 long grade 5 or grd 8 i think was factory . just measured the set on my parts shelf with these same mounts together ready for the next build .

thats a what ever good old grandpa had he used part in that pic . at one time that was a lower retainer cup for a body mount setup .

also that metric 8.8 is basicly the american grd 5 rating or super close .

as to leaks there could be a few problems to look for .

#1 = cracked case on the trans . not good .
#2 = missing or bad square cut o-ring seal on adapter to seal it to the trans case NOT rtv .
#3 = cracked trans to t-case adapter body .
#4 = missing gasket for t-case adapter to t-case its self or just rtv and on some cases its 100% required to use a gasket or it can lead to problem #3 since the gasket makes the bearing end play correct . if no gasket it will break the adapter .

post up a pic of the trans pan and rear of the t-case so we can id them for possible problems or info needed later. looks like a np203 t-case in pics with low mount pto port cover and case iron case .

best to clean the whole area with brake cleaner and let it dry 100% . then fire up the vehicle and top fluids off and let run . look for a leak . if none drive it a little bit and recheck . not to long as to get everything covered in atf again and not find it .

let us know what you find and report back . glad we can help get you going .

[Jered1987]

Originally Posted by sweetk30

double check but you should not be metric bolt for the 2 that hold the adapter to the crossmember . should be 1/2" course thread x 3 1/2 long grade 5 or grd 8 i think was factory . just measured the set on my parts shelf with these same mounts together ready for the next build .

thats a what ever good old grandpa had he used part in that pic . at one time that was a lower retainer cup for a body mount setup .

also that metric 8.8 is basicly the american grd 5 rating or super close .

as to leaks there could be a few problems to look for .

#1 = cracked case on the trans . not good .
#2 = missing or bad square cut o-ring seal on adapter to seal it to the trans case NOT rtv .
#3 = cracked trans to t-case adapter body .
#4 = missing gasket for t-case adapter to t-case its self or just rtv and on some cases its 100% required to use a gasket or it can lead to problem #3 since the gasket makes the bearing end play correct . if no gasket it will break the adapter .

post up a pic of the trans pan and rear of the t-case so we can id them for possible problems or info needed later. looks like a np203 t-case in pics with low mount pto port cover and case iron case .

best to clean the whole area with brake cleaner and let it dry 100% . then fire up the vehicle and top fluids off and let run . look for a leak . if none drive it a little bit and recheck . not to long as to get everything covered in atf again and not find it .

let us know what you find and report back . glad we can help get you going .

Is the np203 not too beyond basic so I could rebuild it if it needs it?
And do you have parts and or parts connections there’s some stuff I need to fix
To make it more family friendly.

[sweetk30]

203 is a bit weird . i have only stripped them for the front gear reduction box to use with a doubler kit .

there is lots of parts places out there .

also there is a sale section here for wanted and sale parts . lots of traffic so good chance you will get what you need .

and fyi : np203 does NOT use gear oil . it requires 30w motor oil or 10-30 oil i forget .

[Jered1987]

Originally Posted by sweetk30

203 is a bit weird . i have only stripped them for the front gear reduction box to use with a doubler kit .

there is lots of parts places out there .

also there is a sale section here for wanted and sale parts . lots of traffic so good chance you will get what you need .

and fyi : np203 does NOT use gear oil . it requires 30w motor oil or 10-30 oil i forget .

How does the doubler work vs what I have now? Oh and by the way he had me put 90 in it that’s great

[74CustomK20]

The doubler is the front part of the case a lot of guys put in front of their np205 to gain a super low 4x4. Good for crawling. Takes 10w30 and supposed to change it I think every 3rd oil change on the motor.

[Jered1987]

Got it done.check out the crappy old ones..