ATR gearbox

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Tue Dec 27, 2016 1:54 pm

Atr means it's from an Accord type r. Gearbox code is U2Q7. It's a limited slip differential box, reckoned by all to be better than the limited slip diff box that was available on preludes (code M2B4).

damon · Post by **damon** » Tue Dec 27, 2016 2:43 pm

Thank you Iain.

K30DPC · Post by **K30DPC** » Thu Dec 29, 2016 12:29 pm

It's torsen LSD box which IMHO is best option available for the money. Also is quite short geared what is helping with acceleration but not so good for top speed. Very good upgrade. I have one fitted and one as a spare in my shied

damon · Post by **damon** » Fri Jan 06, 2017 1:59 pm

Open to sensible offers. Want this out my way.

damon · Post by **damon** » Fri Jan 27, 2017 2:20 pm

bennyboy · Post by **bennyboy** » Fri Jan 27, 2017 3:20 pm

By way of info, in the hope it helps your sale:

You don't have to swap the lot and get new ratios - I used the LSD from a U2Q7 (ATR) gearbox with my M2F5 original gearbox and ratios, as I didn't want the higher revs at cruising speeds. In terms of acceleration, I'm running a bit more poke than stock so it suited me better.

Post by **tom023** » Fri Jan 27, 2017 3:34 pm

I wish I had the cash...
An ATR box is definitely on the list.
GDLWS

Sent from my Redmi Note 2 using Tapatalk

Post by **4thgenphil** » Sun Jan 29, 2017 2:41 pm

bennyboy wrote:By way of info, in the hope it helps your sale:

You don't have to swap the lot and get new ratios - I used the LSD from a U2Q7 (ATR) gearbox with my M2F5 original gearbox and ratios, as I didn't want the higher revs at cruising speeds. In terms of acceleration, I'm running a bit more poke than stock so it suited me better.

Which final drive did you use, the f5 or u2q7?

Kamikazeman · Post by **Kamikazeman** » Sun Jan 29, 2017 11:14 pm

hi, still for sale?

Post by **Merlin** » Mon Jan 30, 2017 12:08 pm

4thgenphil wrote:
bennyboy wrote:By way of info, in the hope it helps your sale:

You don't have to swap the lot and get new ratios - I used the LSD from a U2Q7 (ATR) gearbox with my M2F5 original gearbox and ratios, as I didn't want the higher revs at cruising speeds. In terms of acceleration, I'm running a bit more poke than stock so it suited me better.
Which final drive did you use, the f5 or u2q7?

If he didnt want higher revs at cruising speeds it will be FD from the M2F5. The 5th gear ratio is the same in both gearboxes.

Lude Generation

ATR gearbox

Re: ATR gearbox