wedge diff ratios

[braveheart 3]

Hi Guys,
Has anyone changed the diff on their wedge for a " taller " gear set than the 3.54 on the majority of cars ?
we are transplanting a 302 into a Rover engined wedge and have a perfectly good 4 speed gearbox for this engine but the thing will be doing 20.2 x 5500 = 110 mph ie screaming its nuts off !
has any one changed either tyres or diff ratios ? I think someone said the xjs v12 diff is a swop with a 3.07 gear set.
any help as usual !
Regards
Braveheart

[grahamw48]

The Jag XJs had several diff ratios available, all of which should fit.

Some bigger Wedges (SEAC) had the option of a higher ratio, the 3:07 that you've mentioned I think was the one.

ETA: Oh, and as high as (approx) 2.88 was available, but probably pretty rare.

Edited by grahamw48 on Sunday 28th March 11:06

[Bobsaf]

Contact me at [e-mail] in two to three weeks. Attempting to install 3.73 gears and Auburn Gear positraction.
bob

[grahamw48]

But I thought he wanted taller gearing.

[Bobsaf]

If the 3.73 swap works, any gear ratio desired is available at Summit Racing.
bob

[grahamw48]

Ah, ok. Let us know how you get on.

[rev-erend]

Another optiuon is to use a 5 speed box ..