Diff Ratio's.

[hux454]

G'day Fellow Vanners & Uters,
Thought I'd raise the topic of diff ratio's for everyone to contribute their views, seeing how's it hasn't been raised yet (I think). My van has a 253 & auto & thank goodness it's got the 3.36 diff ratio as it would be damn slow off the mark otherwise. 75% of my driving is suburbia so it's a good ratio - not too bad off the mark & fun to drive but the other end of the scale is it revs pretty high doing 110 on the highway (which burns a hole in my pocket quicker too), seeing's how it's got a 4 barrel carby. A happy medium (my opinion of course) would be the trusted old 3.08 ratio.
I know of course it all comes done to drivers surroundings.

Cheers,
Glenn.

[ozbox]

3.08 is a good ratio with 253 4 speed as it still has enough that you dont have to ride the clutch and it brings revs down on the highway...ive had a few 350 chev t400 vehicles with 2.78 and i just put a 3.08 behind the same driveline and its much better..not as sluggish...mind you it had 3.55 which was great for lightin em up..

[agr071]

I've got a 308, t400 with a 2.78 and 15" wheels.
Yes it's slow off the mark but loves freeway use.
I like mine for open road cruising.

[Absinth]

Mines GV7..... 3.55:1 and currently running 253 auto... eewwww

[hux454]

Struth Shaun,
That's quite rare with 3.55 ratios.

[Absinth]

Struth Shaun,
That's quite rare with 3.55 ratios.

Not that rare, I've got around six Sandman's recorded with GV7 diff ratio's. One is a L20 - M20, one is a L31 - M41??? and the others are L32 - M20.

[wbute]

Mine is GV7 L32 M20. Way too low a diff ratio for on the highway.