Final drive.

Post by **beetlebum2_uk** » 02 Dec 2007 11:43 am

Is it possible to just change the final drive in a 340 gear box?

only asking for reference if i go down the tuned 16v route would be good to have longer legs at the top end!

anyone?

Post by **classicswede** » 02 Dec 2007 01:53 pm

I'm sure the final drive as per most Volvo's is 1 - 1

Your best bet would be a taller diff

Post by **Frits** » 02 Dec 2007 02:57 pm

the 4 was 1-1 and the 5 a overdrive?

Post by **beetlebum2_uk** » 02 Dec 2007 06:34 pm

ok so whats the best way to get higher gearing?

what has a taller diff that will fit?

Post by **trabitom99** » 02 Dec 2007 06:54 pm

I think the carb 360s had the most long-legged diffs, something like 3.26 or 3.36 ...

Tom

Post by **SteveP** » 02 Dec 2007 07:18 pm

Yep GLE's had 3.36 ratio diffs

Post by **beetlebum2_uk** » 02 Dec 2007 11:15 pm

and what was the diff ratio in a carb 1.7 340?

Post by **SteveP** » 03 Dec 2007 12:18 am

3.64 I think... same as GLT's... others can confirm for sure

Post by **Chris_C** » 03 Dec 2007 10:15 am

Tis indeed! You'll notice the second gear hole a lot more with a 3.36, I notice it more in a 3.64 vs a 3.8x.

Post by **trabitom99** » 03 Dec 2007 10:29 am

SteveP wrote:3.64 I think... same as GLT's... others can confirm for sure

I've found the post I had in mind:
http://www.volvo300mania.com/forum-uk/v ... hp?p=15391

Tom

Post by **classicswede** » 08 Dec 2007 12:39 pm

Some time ago someone posted a full list of all teh different diff ratios. Does any have that list?

Post by **foggyjames** » 09 Dec 2007 07:27 pm

I do, but I can almost remember all the options.

Unless you're using this setup on the motorway all day, I'd stick with the 3.82, seriously. It's ideal for a revvy NA motor which is relatively lacking in power. Save the big gears for something with bags of torque.

I've just gone from a 3.36 (standard 360 carb) to a 3.82 (340 1.4 5 speed) in my 360, and it's a big improvement when driving 'for fun'.

cheers

James