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by **oldestof11** » Wed Dec 12, 2007 2:06 pm

Ok which would be better? I know the Allison is a 4spd lock-up, non-OD, tranny but the A518 is a non-lock-up, OD tranny. What is better for a DD/drag/2wd puller? The draggin' and pullin' coming a couple of years later. Going into a 87 1500 Suburban :wrench:

by **Begle1** » Wed Dec 12, 2007 7:19 pm

What's that Allison out of?

by **oldestof11** » Wed Dec 12, 2007 8:06 pm

Big screaming yella zonker Blue bird :lol:

by **Begle1** » Thu Dec 13, 2007 10:17 am

Well, the lock up would be more useful for pulling, towing and racing than overdrive would. You might need some higher-range gears in the differential, though.

If the Allison is any more heavy duty than the A518, it'd probably be the route you'd want to go.

by **oldestof11** » Fri Dec 14, 2007 2:34 pm

Anyone else?

Also, how would a Chevy 10 bolt 2.73 hold up to about 300 hp? I am thinking (for now) just a turbo upgrade and getting my stock injectors rebuit. Maybe even a 12cm housing. OH and a BHAF.

by **flashgordon** » Fri Dec 14, 2007 4:14 pm

oldestof11 wrote:Anyone else?

Also, how would a Chevy 10 bolt 2.73 hold up to about 300 hp? I am thinking (for now) just a turbo upgrade and getting my stock injectors rebuit. Maybe even a 12cm housing. OH and a BHAF.

Well a 14 bolt is comparable to a Dana 60.....posibly a 70

a 10 bolt would be like a Chry 8 1/4

I thing it would brake vary ease.

Flash.

by **PToombs** » Fri Dec 14, 2007 5:58 pm

IIRC, a 10 bolt wouldn't even hold up to a 350 sb with the juice! :shock:

It was cool for a couple minutes though!

by **GO OVRIT** » Fri Dec 14, 2007 7:51 pm

It would be really cool if the 10 bolt has the factory gov-lock limited slip....It'll wait until you've got good boost before it explodes :shock:

Then of course since its a c clip axle the shafts and wheels will come out. :evil:

by **oldestof11** » Sat Dec 15, 2007 4:31 pm

Ok guys. I am going to bite the bullet. But still a little undecided. I know parts for the A518 is plentiful but what about the 545? I think being able to say "Yea, it has the Cummins and the Allison" would be a good coolness factor ;-)

I am leaning more towards the Allison as it is cheaper by about $20. Plus in stock form the Allison can handle more.

Anything else?

Jon

by **flashgordon** » Sat Dec 15, 2007 5:17 pm

oldestof11 wrote:Ok guys. I am going to bite the bullet. But still a little undecided. I know parts for the A518 is plentiful but what about the 545? I think being able to say "Yea, it has the Cummins and the Allison" would be a good coolness factor I am leaning more towards the Allison as it is cheaper by about $20. Plus in stock form the Allison can handle more.

Anything else?

Jon

I just don't think, that there is vary fue,,,,if any of us that have dabbaled with that 545 Allison........but there are many that have dabbaled with a chry 727,518,618,47rh and 47re's

Flash.

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Whats better? Allison AT545RM or A518?

Whats better? Allison AT545RM or A518?

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