LUVTruck.com

1990 Isuzu PUP Transmission from a 2.3
is this a direct swap with a '79 g180? I've tried searching but the search tool leaves out numbers..............

Yes-any '95 back 2.3L 2wd- except I think the splined yolk that goes into the tailshaft is larger than the 4sp, so may have to have the driveshaft modified. And seems like maybe the speedo cable cable gears changed sometime, don't know what year.

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'78 Chevy LUV,1.9,4sp,headers,31's,SAS Dana 30,Dana 20,SOA rear w/Aussie Locker, rough body, bought new 12/4/78.
'87 Trooper,2.3,5sp,headers,31's,ball joint flip & spacer,Aussie Locker rear,Superwinch hubs,brush guard w/5.5K winch,more to come.

what do you mean larger? do you mean I just need to get the front portion of the driveline? Are the u joints the same size?

Whatever year the spline increased in diameter ('86 maybe- When the 2.3L engine became available?)they also went to larger u-joints and changed the pinion flange bolt pattern, so you'll have to figure how the best way to mate each end. The 4 & 5sp are the same length & the pinion yokes will swap, if that helps.
Now, I THINK the '85 back 5sp spline and pinion flange are the same as the 4sp & LUV rear, but they are scarce and not quite as sturdy as the later years.

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'78 Chevy LUV,1.9,4sp,headers,31's,SAS Dana 30,Dana 20,SOA rear w/Aussie Locker, rough body, bought new 12/4/78.
'87 Trooper,2.3,5sp,headers,31's,ball joint flip & spacer,Aussie Locker rear,Superwinch hubs,brush guard w/5.5K winch,more to come.

if you have a good parts store with people who know the difference between their a$$ and a whole in the ground, i believe spicer and some others made some odd ball u joints to mate different things together.

all you need to do is take an end cap for the driveline from the luv and take an end cap from the isuzu tranny side and take them in and have them match them up with something, if they do find 1 be sure to save the box as chances are that by the time you need a new 1 you will forget the number.

i used to do this at my local napa store all the time after swapping rear ends in trucks

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zyanug
75 luv stepside... Work in progress
76 fleetside 350hp 1968 327cu
"No replacement for displacement!"
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[_@l__l__@_]***

hey,just did a 89 5 speed into my 76 luv did the rearend too. i ran into the same problem the driveshaft out of the 89 is 3 inch too long trying to find a ujoint that will mate the old driveshaft with the new yokes.. If you find it before me please post it thanks or pm me thanks ...AZdude

Well, i ended up not doing the swap... yard wanted 250 for the trans and 100 for the driveline and i just couldnt do it right now...

could not find a u joint that would mate the two together so found a driveshaft out of an automatic pup and it bolted right in. F.Y.I. distance between the mounting flange and the out put shaft should be 52" .so look for a driveshaft that 's about 55"total (tip of yoke to mounting side of flange) and it should work. having a driveshaft made will cost about 300.00 hope this helps

I just got a custom driveline made (used my existing yokes and u joints) for $147.60. Apparently a simple driveline shortening is around $100 but mine didn't fall into the 'simple' category.

If you're in the Seattle area, the name of the shop is Aukeen Drivelines. Kind of a grumpy old feller but otherwise good service.

Eric Q.

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'75 body with '82 diesel running gear
My build thread.

Kinda late, but let's clear something up...

That would be a "Pickup". The P'up was sold only from 1981-1987.

Okay, carry on...

Jack

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'83 Isuzu P'up Diesel LS - Original Owner
JoeIsuzu@IsuzuPup.com
IsuzuPup.com

really? maybe someone was confused, it says pup right on the side

thanks for that