If you want to buy a new set you´ll get a problem: no original dipsticks and tubes available anymore for TH400 transmissions... The one that comes closest is the unit sold by Performance Years:
Quote:
PYU302 Description: TH400 DIP STK-TUBE & SEAL KIT USD 49.00 ea FITS ALL CARS W/PONTIAC - OLDS MOTORS WITH TH400 TRANS. Must use both tube and stick together for proper fit and readings. **now comes with GM replacement red plastic top**
You can go to http://www.pysales.com/iwwidb.pvx?;multi_item_submit open the search-button and then fill in part# PYU302, then you´ll get a picture...
Classic Industries is offering a chrome plated tube with dip stick unit for USD 19.95, also being meant for a TH400 (part# T4995). Not sure what TH400 they are refering to. The Chevy units won´t fit a Pontiac TH400 without modifications...
CI already gives you a hint:
Quote:
...OEM design which will fit most applications without modifications. For some vehicles, modifications may be necessary for proper installation.
Then again you can ask FirebirdBill (aka EarlyBrds at EarlyBrds@aol.com) or Terry (aka 69Firebirdman at backyardparts@bellsouth.net). You also could PM them, they both are members on this site...
BTW - why does the system support the link of Frank´s Pontiac Parts but not the one for Performance Years mentioned above? I copied and pasted both the same way but for opening the PY link you once again have to copy and paste it yourself; however the second link opens automatically when clicking on it??