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Re: [GMCnet] TH425 Dipstick replacement [message #239638] Wed, 12 February 2014 05:47 Go to next message
Jim Bounds is currently offline  Jim Bounds   United States
Messages: 842
Registered: January 2004
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Senior Member
These trans sticks are a real problem.  Manny explained to me no other trans uses the samee stick, ya that surprised me too!  We sold the remote Lokar back in the CLASCO days.  The flexible stick was descent to read but dripping fluid down that 3/8 stainless braided hose was tough doing a filter change!  There is a groove in the stick stopper seal on the original stick allowing the case to breath, the Lokar one does not.  It has a good O ring seal to keep things out.  Have seen no troubles but my wonder is are we misssing a case vent with the Lokar.  Sure wish I had all those original sticks we through out back then!  When we do a filter change, we stick in an original tube, fill and fip with that then reinstall the Lokar.  We can't take that much time to fill the trans, you could do it if you pack a lunch!

Het, they are nice though and they look marvelous ,

Jim Bounds

-------- Original message --------
From: mike foster <mafoster1@bellsouth.net>
Date: 02/11/2014 7:15 PM (GMT-05:00)
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] TH425 Dipstick replacement



TheLOKAR  part number I found at www.summitracing.com was TD350400FM36, this translates to a turbo 350 or 400 and 36" long. My GMC had the LOKAR when I bought it. To my knowledge this one should fit. Price was around $95.00. I would not be without it. Check and top off standing in front of the bumper!



USAussie wrote on Tue, 11 February 2014 16:24
> Mike,
>
> You note below that you have one of their transmission dipsticks but I when I went to Summit I couldn't seem to find one for the
> TH-425.
>
> Could you point me in the right direction, please?
>
> Regards,
> Rob M.
> Sydney, Australia
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
> 
>  -----Original Message-----
> From: mike foster
>
> You can Google or go to either SUMMIT of JEGS and look for products made by LOKAR. These guys are street-rodders who make
> exceptional high quality products for most every application you can think of.
>
> I have one of their transmission dip-sticks. S/S-teflon lined flexible with a 'vinyl' gauge.
>
> They are not inexpensive. You will not be disappointed in the product.
>
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> GMCnet mailing list
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Re: [GMCnet] TH425 Dipstick replacement [message #239724 is a reply to message #239638] Wed, 12 February 2014 07:12 Go to previous message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Jim,

Your post sparked a bit of grey matter. Manny once told me that the OEM dipstick formed part of the transmission vent system along
with the vent in the top of the chain case.

He told me that it would be a good idea to vent the extended dipstick so dumbass here goes and drills a small hole in the bottom of
the tube so that water can't get in NOT realizing that while the hole in the bottom of the dipstick wouldn't let water in it WOULD
let trans fluid OUT when you added fluid! DOUH!

I wound up wrapping some duct tape around the tube to plug the hole.

Regards,
Rob M.
Sydney, Australia


-----Original Message-----
From: gmccoop

These trans sticks are a real problem.  Manny explained to me no other trans uses the samee stick, ya that surprised me too!  We
sold the remote Lokar back in the CLASCO days.  The flexible stick was descent to read but dripping fluid down that 3/8 stainless
braided hose was tough doing a filter change!  There is a groove in the stick stopper seal on the original stick allowing the case
to breath, the Lokar one does not.  It has a good O ring seal to keep things out.  Have seen no troubles but my wonder is are we
misssing a case vent with the Lokar.  Sure wish I had all those original sticks we through out back then!  When we do a filter
change, we stick in an original tube, fill and fip with that then reinstall the Lokar.  We can't take that much time to fill the
trans, you could do it if you pack a lunch!

Het, they are nice though and they look marvelous ,

Jim Bounds


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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
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