4.56 on a CRD manual JK with 33's

[Pete_m]

Same here. 4.11s and 35s manual crd is just right

[tambo]

I think I will stay on 3.73 for now and see how it goes.
Thanks for the feedback.

Originally Posted by JasperJ

Manual CRDs started in 2007 with 4.11 and in 2008 went to 3.21. Jeep stayed with this ratio for a couple of years and around about 2012 saw the light and went to 3.73.

not sue about that, think they were always 3.21. mine was early 2007 and it had 3.21, i remember doing 100klm it revved to just 1850rpm, that calcs out to 3.21 Ratio with the stock 245 75/ 16" Tyres and Man 0.84 6th.
If 4.11 i would of been doing 2360rpm

Originally Posted by tambo

I think I will stay on 3.73 for now and see how it goes.

but you know how it goes?
bite the bullet, spend the cash and change to 4.11, you WILL notice the difference.
what are jeeps for if not to drain our pockets ha ha.

[JasperJ]

Originally Posted by 41MB-14JK

not sue about that, think they were always 3.21. mine was early 2007 and it had 3.21, i remember doing 100klm it revved to just 1850rpm, that calcs out to 3.21 Ratio with the stock 245 75/ 16" Tyres and Man 0.84 6th.
If 4.11 i would of been doing 2360rpm

I'm positive Mal, when I test drove the '07 before I bought mine it was definitely 4.11 for the CRD manual. When I ordered mine in August but didn't get it until April 2008 and it had 3.21s. I was gutted, it drove like a totally different vehicle. IIRC the very first few released my have had 3.21s but for the most part they had 4.11s. I got my set from Steve at Sharpwrax when he changed them out of his 2007 CRD.

[tambo]

I called jeep with my Vin number and they confirmed it.
Also when I calculate the RPM's to the speed I am doing it confirms it.

Originally Posted by JasperJ

IIRC the very first few released my have had 3.21s but for the most part they had 4.11s. I got my set from Steve at Sharpwrax when he changed them out of his 2007 CRD.

Fair enough, i bought mine Sept/07 but not sure of build date.

What does IIRC mean i see it in a few posts now, im a bit slow i know, took me a while to work out lol

Originally Posted by tambo

I called jeep with my Vin number and they confirmed it.
Also when I calculate the RPM's to the speed I am doing it confirms it.

confirmed what, "IT" ? is that cousin IT? (sorry just in a happy mood being a smart ass )