1978 vette trans fluid help please.
Thread Starter
Intermediate
Joined: Sep 2017
Posts: 29
Likes: 4
From: Cheshire
1978 vette trans fluid help please.
1978 small block , whats recomended fluid for the auto gearbox and can i fill it from the gauge neck instead of the box ,how many litres will the gearbox hold am in the Uk , thankyou .
Race Director
Joined: May 2006
Posts: 18,740
Likes: 2,583
The transmission has to be filled from the transmission dipstick tube/gauge neck, there is no other way.
Without knowing what is sold in the UK it is hard to recommend a specific brand. It has to meet Dexron III standard at the minimum.
Buy 5 quarts and start checking after you put in 4 quarts.
Without knowing what is sold in the UK it is hard to recommend a specific brand. It has to meet Dexron III standard at the minimum.
Buy 5 quarts and start checking after you put in 4 quarts.
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
OP
reasonably sure Jaguar XJS 1977 thru 1980 had US made GM TH400 auto trans.
Both TH350 and TH400 trans use same fluid that's DEXRON II repeat dexron 2 (not III not 3)
Whatever is available in UK for above Jag should work just fine in your 78 vette
FWIW, I understand the newer DEXRON VI (6) is backward compatible with all previous versions of dexron
-edit-
free download the GM factory specs for 78 vette here ... major resource for these questions and those to come
https://www.gmheritagecenter.com/doc...t-Corvette.pdf
reasonably sure Jaguar XJS 1977 thru 1980 had US made GM TH400 auto trans.
Both TH350 and TH400 trans use same fluid that's DEXRON II repeat dexron 2 (not III not 3)
Whatever is available in UK for above Jag should work just fine in your 78 vette
FWIW, I understand the newer DEXRON VI (6) is backward compatible with all previous versions of dexron
-edit-
free download the GM factory specs for 78 vette here ... major resource for these questions and those to come
https://www.gmheritagecenter.com/doc...t-Corvette.pdf
Last edited by jackson; Oct 4, 2019 at 06:06 PM.
