68 Delta 88 gear questions
April 25th, 2011, 09:36 AM
#1
TalksToToads
Thread Starter
Join Date: Oct 2010
Location: York, Pa.
Posts: 118
68 Delta 88 rear gear questions
To change the gear ratio, do you just change the ring and pinion? I am having trouble finding a set for this car, I am looking to change it to 3:73. This is what I found and I thought some of these might be the same but they just didn't bother mentioning it would fit a Delta 88. http://www.jegs.com/p/Richmond-Gear/...50832/10002/-1
Last edited by CrazedCountryRebel; April 26th, 2011 at 10:09 AM.
April 26th, 2011, 04:35 AM
#2
Registered User
Join Date: Oct 2009
Location: Erie,PA
Posts: 3,814
Those gears will not fit the rear in your car.If your car was originally equipped with a 455,then it has what some people refer to as the "large 12-bolt".Those internals are larger than the 12-bolt Chevy car or 12-bolt Chevy truck internals.There are no aftermarket gearsets available for those rears.The highest numerical gear that I have seen for those rears,is a 3:23,and they pop up for sale every once in awhile.
April 26th, 2011, 07:29 PM
#5
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Join Date: Jul 2006
Location: Richfield, Oh
Posts: 1,737
3.23 gears
LUCK... PRAY... and search the internet junk yard swap meets etc. BUT if yo u do not even know what it is you are looking at be prepared to be ripped off A LOT. Jim
Everyone else is also looking. WAGONS are a good place to look - BUT again the demo derby guys have KILLED a lot of those cars over the years.
You are better off going with a 10 bolt 8.5 rear if you can find one.
Everyone else is also looking. WAGONS are a good place to look - BUT again the demo derby guys have KILLED a lot of those cars over the years.
You are better off going with a 10 bolt 8.5 rear if you can find one.
April 27th, 2011, 05:18 AM
#6
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Join Date: Oct 2009
Location: Erie,PA
Posts: 3,814
I did some 8.5" A-body rears for a few different guys with the big cars.One of them was a 65 Delta.I know he had to make some control arms & such,but I have no idea what else or how much work was involved in making it work.I did not see the car.He just called & ordered the rear,and said he could make it work.I also had to change the bolt pattern on the A-body axle shafts to the 5x5 that the big car had.
May 2nd, 2011, 04:51 AM
#7
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Join Date: Jul 2006
Location: Richfield, Oh
Posts: 1,737
Pontiac reart in a 88
I have a Pontiac rear from a Bonneville...you might be intereseted in It will have new 3.55 gears and posi housing blasted etc. Not terribly cheap as it will be a complete rebuild. Let me know. Jim
May 2nd, 2011, 06:31 AM
#8
Someone is making new 3:55's for the 65-66 BOP 10 bolt cover full size Olds rear. This is actually a Pontiac rear with the hourglass cover. You could swap your rear for one of these and put the 3:55's in it.
May 22nd, 2011, 04:19 PM
#11
Lt. Buzzkill (ret.)
Join Date: Mar 2004
Location: Western New York
Posts: 1,297
Rebel, where are you located?
I have a 3.23 posi rearend from a '65 Starfire near Bufffalo, NY. The housing is heavily rust-pitted but it's complete including brakes. This rear is a bolt-in for 88/98's from '65-70.
I have a 3.23 posi rearend from a '65 Starfire near Bufffalo, NY. The housing is heavily rust-pitted but it's complete including brakes. This rear is a bolt-in for 88/98's from '65-70.
May 24th, 2011, 04:24 AM
#14
Lt. Buzzkill (ret.)
Join Date: Mar 2004
Location: Western New York
Posts: 1,297
I'd like to get $325 for it, drum-to-drum.
And no, the guts won't fit in your original housing. Your car should have a 9-3/8" Olds 12-bolt. This rear is a P-type (Pontiac built) 8-7/8" with 10-bolt cover/12-bolt ring gear.
And no, the guts won't fit in your original housing. Your car should have a 9-3/8" Olds 12-bolt. This rear is a P-type (Pontiac built) 8-7/8" with 10-bolt cover/12-bolt ring gear.
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