Previous Thread
Next Thread
Print Thread
Page 3 of 9 1 2 3 4 5 6 7 8 9
Re: FORD 8.8 REAR................ [Re: Quicktree] #1702564
11/26/14 07:41 PM
11/26/14 07:41 PM
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
S
Sport440 Offline
master
Sport440  Offline
master
S

Joined: Jan 2003
Posts: 6,591
Canton, Ohio
Quote:

Quote:

Quote:

Quote:

Quote:

Quote:



The Buick we currently race in Drag Radial, had a 10 bolt under it when we bought it. The car had run 5.50s with small blocks when we bought it and our big block made it a 5.20 car right off the bat. We ran the 10 bolt until we broke it (which wasn't long). The point was, the car "evolved" from a streeter to a low 5 sec car and the 10 bolt was "good enough" to a point.......then it wasn't.........so in Dom's case, moving from an 8.75 TO an 8.8 under his car........well he may as well light that money on fire, because it will accomplish the same thing.

Monte



Just curious Monte, what rear is in that Buick?


Chromoly 9" sheetmetal Ford housing, with 40 spline gun drilled axles, alum Mark Williams center, with a 3.70 Pro gear and a billet 1350 yoke with a solid joint............expensive? yeah I guess, but high power, hard hooking radial cars will break EVERYTHING. Radial cars are harder on drive line parts by FAR than slick tire cars. That said, we have NEVER broken a single part in the rear...........Several radial guys I know this year were twisting and breaking 40 spline axles. That's how hard these cars can be on parts.

Monte



If thats the case, then move up to a Dana 70, 10.5" ring gear, 35 spline axles, 3.5 tubes with .5 wall thickness, looks like a 60 but on steroids inside! 1401 ujoints and a bunch of ratio's up to 7.17 to 1 Tim





Oh I love getting on here. Twisting 40 spline axles and should go back to 35 spline and add 150 lbs in the process. That is exactly what they should do. I think you should call all the big chassis shops and get them all on board with the dana 70 movement also. You better buy up all the parts they are going to be flying off the shelf.


heck I am heading to the junk yard today to see if I can find a dump truck rear to put in mine




Make sure you get the 2 speed axel, that will help your little SB

Re: FORD 8.8 REAR................ [Re: Quicktree] #1702565
11/26/14 08:53 PM
11/26/14 08:53 PM
Joined: Jun 2003
Posts: 9,225
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
Drag Week Mod Champion
S

Joined: Jun 2003
Posts: 9,225
Charleston
Quote:

Quote:

,looking to buy a new rear-end in the next week or 2, my factory 8 3/4 may not be up to the 535 stroker 6 pak,cope built 727 tranny, and the slicks, this is in my 70 runner,with the stroker expected to make 650 hp and 6?? torque, want to add a rear that will not fail me, as this is all new and i will being put together next month, thoughts were to buy a DANA (to stick with mopar)car will not be tubbed but inner wheel wells massaged for bigger meats. So in short a good read post


just a tip, Dana is not mopar. they came in just about all trucks. mopar used them because they knew the 83/4 wouldn't handle the big hemi's and 440s




Mopar knew some of you guys would set pinion angle wrong


Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: FORD 8.8 REAR................ [Re: Sport440] #1702566
11/26/14 09:28 PM
11/26/14 09:28 PM
Joined: Jan 2003
Posts: 20,172
Park Forest, IL
slantzilla Offline
Too Many Posts
slantzilla  Offline
Too Many Posts

Joined: Jan 2003
Posts: 20,172
Park Forest, IL
Quote:


Make sure you get the 2 speed axel, that will help your little SB




OH SNAP!


"Everybody funny, now you funny too."
Re: FORD 8.8 REAR................ [Re: Quicktree] #1702567
11/26/14 11:36 PM
11/26/14 11:36 PM
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
1967dartgt Offline
master
1967dartgt  Offline
master

Joined: Oct 2007
Posts: 3,978
Hilltown Pa
Quote:

Quote:

,looking to buy a new rear-end in the next week or 2, my factory 8 3/4 may not be up to the 535 stroker 6 pak,cope built 727 tranny, and the slicks, this is in my 70 runner,with the stroker expected to make 650 hp and 6?? torque, want to add a rear that will not fail me, as this is all new and i will being put together next month, thoughts were to buy a DANA (to stick with mopar)car will not be tubbed but inner wheel wells massaged for bigger meats. So in short a good read post


just a tip, Dana is not mopar. they came in just about all trucks. mopar used them because they knew the 83/4 wouldn't handle the big hemi's and 440s




A good spot to find them is in old FORD trucks. It will make a great mopar rear nice and heavy.


Brett Miller W9 cnc'd heads
STR Chassis fabraction
Re: FORD 8.8 REAR................ [Re: 1967dartgt] #1702568
11/27/14 01:41 AM
11/27/14 01:41 AM
Joined: Jul 2010
Posts: 1,845
Tampa
D
DusterDave Offline
top fuel
DusterDave  Offline
top fuel
D

Joined: Jul 2010
Posts: 1,845
Tampa
Forget that wimpy Dana 70, go for AAM GM corporate 14 bolt!


Gone to the dark side with an LS3 powered '57 Chevy 210
Re: FORD 8.8 REAR................ [Re: DusterDave] #1702569
11/27/14 02:25 AM
11/27/14 02:25 AM
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
astjp2 Offline
master
astjp2  Offline
master

Joined: Jan 2011
Posts: 4,785
Utah and Alaska
Are you talking the 3/4 ton chebby 14 bolt? Its about 20% weaker than the 70 and 35% less than a Dana 80. Rock crawlers bust them all the time....Tim


1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta

I didn't do 4 years and 9 months of Graduate School to be called Mister!
Re: FORD 8.8 REAR................ [Re: Thumperdart] #1702570
11/27/14 04:39 PM
11/27/14 04:39 PM
Joined: Aug 2008
Posts: 4,066
Mo.
racerx Offline
master
racerx  Offline
master

Joined: Aug 2008
Posts: 4,066
Mo.
Quote:

Quote:

Quote:

Quote:

I know of lots of low 5s cars running 8.8s. Stock ring gear bolts suck.





I don't think it's a matter of who goes fast on an 8.8. it's a matter of if he's going to upgrade is that the best choice. I don't think it is, he would be better off doing it right the first time.




Looks like I`ll be gettin WHITEDART`s 9" after the M.A.T.S. unless it blows up or I find something sooner........ Time to step up................


Thump......you mean to tell me your giving up the 8 3/4 I thought we were the only 2 that would carry the 8 3/4 banner for life.....Lol

Re: FORD 8.8 REAR................ [Re: racerx] #1702571
11/27/14 05:06 PM
11/27/14 05:06 PM
Joined: Jul 2004
Posts: 19,317
State of confusion
T
Thumperdart Offline OP
I Live Here
Thumperdart  Offline OP
I Live Here
T

Joined: Jul 2004
Posts: 19,317
State of confusion
Quote:

Quote:

Quote:

Quote:

Quote:

I know of lots of low 5s cars running 8.8s. Stock ring gear bolts suck.





I don't think it's a matter of who goes fast on an 8.8. it's a matter of if he's going to upgrade is that the best choice. I don't think it is, he would be better off doing it right the first time.




Looks like I`ll be gettin WHITEDART`s 9" after the M.A.T.S. unless it blows up or I find something sooner........ Time to step up................


Thump......you mean to tell me your giving up the 8 3/4 I thought we were the only 2 that would carry the 8 3/4 banner for life.....Lol




So confused............. Not 100% sure on the 9 but I`m only going to make more power so I`d hate to scatter stuff and unless I can get to 2800 lbs. wet, I don`t see any other option.


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: FORD 8.8 REAR................ [Re: Thumperdart] #1702572
11/27/14 08:11 PM
11/27/14 08:11 PM
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
S
Sport440 Offline
master
Sport440  Offline
master
S

Joined: Jan 2003
Posts: 6,591
Canton, Ohio
What are your plans to make more power?

Re: FORD 8.8 REAR................ [Re: Sport440] #1702573
11/27/14 09:16 PM
11/27/14 09:16 PM
Joined: Jul 2004
Posts: 19,317
State of confusion
T
Thumperdart Offline OP
I Live Here
Thumperdart  Offline OP
I Live Here
T

Joined: Jul 2004
Posts: 19,317
State of confusion
Quote:

What are your plans to make more power?





I think I`m going to push the stock block a bit w/a Max Wedge top end and a bigger carb. It`s my goal which is $$$ limited at this point or it would already be done and I`d be posting my 9.30 time slips..............


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: FORD 8.8 REAR................ [Re: Thumperdart] #1702574
11/28/14 02:36 PM
11/28/14 02:36 PM
Joined: Jan 2003
Posts: 16,376
D
dogdays Offline
I Live Here
dogdays  Offline
I Live Here
D

Joined: Jan 2003
Posts: 16,376
Torque breaks rear ends, not horsepower.

Sounds to me like your intended changes are going to move the peak of the torque curve up in the rpm range, but not increase maximum torque. Gear loading doesn't change.

Where horsepower would come into play is if you were running a top speed event and the increased engine power would be used making the car go faster. In this case, the energy being transferred by the rear gears would increase, increasing the heat load into the rear end. This is the reason that some circle track cars use coolers on the differentials.

R.

PS: There are (were) two GM 14-bolt rear ends, the light duty 9.5" ring gear and the heavy duty 10.5" ring gear.

Re: FORD 8.8 REAR................ [Re: Thumperdart] #1702575
11/28/14 05:33 PM
11/28/14 05:33 PM
Joined: Aug 2003
Posts: 43,127
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,127
Bend,OR USA
Quote:

Quote:

Quote:

Quote:

Quote:

Quote:

I know of lots of low 5s cars running 8.8s. Stock ring gear bolts suck.





I don't think it's a matter of who goes fast on an 8.8. it's a matter of if he's going to upgrade is that the best choice. I don't think it is, he would be better off doing it right the first time.




Looks like I`ll be gettin WHITEDART`s 9" after the M.A.T.S. unless it blows up or I find something sooner........ Time to step up................


Thump......you mean to tell me your giving up the 8 3/4 I thought we were the only 2 that would carry the 8 3/4 banner for life.....Lol




So confused............. Not 100% sure on the 9 but I`m only going to make more power so I`d hate to scatter stuff and unless I can get to 2800 lbs. wet, I don`t see any other option.


Dom, with dollars amount spent for best results this is what you need, not some after markert Ford designed based power robbing piece Go to one of the local junk yards and buy a used Dana 60 housing with a bad end and have Jason cut and narrow it. Use a set of good 35 spline axles made to work with your brakes, I special orerded mine for my Duster from Strange , spool or posi, your choice and a good used set of Dana 4.10 gears

8344660-SANY0275.JPG (113 downloads)
Last edited by Cab_Burge; 11/28/14 05:38 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: FORD 8.8 REAR................ [Re: Cab_Burge] #1702576
11/28/14 05:44 PM
11/28/14 05:44 PM
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
astjp2 Offline
master
astjp2  Offline
master

Joined: Jan 2011
Posts: 4,785
Utah and Alaska
I would get a jy dana 70, 40 spline axles and put ford ends on with explorer or crown vic brakes. 10.5 ring gear and no heaver than the 60....and it comes with .5 thick tubes. You could build this for about $900 if you get a deal on a housing with the gears you want.

I got my 60 for $75, it was 600 to narrow and shafts from Dutchman. Pick your locker/posi unit and gears, you may get lucky and get what you want from the yard.... Brakes were $80 for the explorer discs I got a 3.55 r&p for $55, real Dana, so with a little work you can get a real nice setup fairly affordable...that will be indestructible.
Tim


1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta

I didn't do 4 years and 9 months of Graduate School to be called Mister!
Re: FORD 8.8 REAR................ [Re: Cab_Burge] #1702577
11/28/14 05:48 PM
11/28/14 05:48 PM
Joined: Jul 2004
Posts: 19,317
State of confusion
T
Thumperdart Offline OP
I Live Here
Thumperdart  Offline OP
I Live Here
T

Joined: Jul 2004
Posts: 19,317
State of confusion
I know a few who have built 60`s from scratch but I have no desire and am not fond of the look. I like backbraced rears under a car, less wt. and since Ferds are my second favorite cars, a 9" it is.


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: FORD 8.8 REAR................ [Re: Thumperdart] #1702578
11/28/14 07:44 PM
11/28/14 07:44 PM
Joined: Jan 2003
Posts: 32,394
Q
Quicktree Offline
I Win
Quicktree  Offline
I Win
Q

Joined: Jan 2003
Posts: 32,394
Quote:

I know a few who have built 60`s from scratch but I have no desire and am not fond of the look. I like backbraced rears under a car, less wt. and since Ferds are my second favorite cars, a 9" it is.


smart move

Re: FORD 8.8 REAR................ [Re: Quicktree] #1702579
11/28/14 10:09 PM
11/28/14 10:09 PM
Joined: Aug 2003
Posts: 43,127
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,127
Bend,OR USA
Quote:

Quote:

I know a few who have built 60`s from scratch but I have no desire and am not fond of the look. I like backbraced rears under a car, less wt. and since Ferds are my second favorite cars, a 9" it is.


smart move


I've seen a lot more nine inch race type third members,using all non Ford components, being fixed at the NHRA National races by the traveling rear end professional guys than any Mopar type rear ends being fixed or swapped out To each thier own I remember when Jack Chrisman conned Jim Dunn and Joe Reath into being the guinney pig for his R&D on switching from the Olds, Pontiac and Mopar 8 3/4 rear ends in the old funny cars and top fuel cars to the nine inch Fords In todays world thier are no OEM Ford parts in any of the decent after market performing nine inch type rear ends, not even the housings I'm sure thier are reasons for most racers using them, not me I don't make enough power to break what I run now BTW, I can't afford them high dollar race parts like the race type Ford nine inch or 9.5 inch race rear ends anyways My 1940 Ford tudor street rod will have a Lincoln Versias 9 inch rear end in it with all the recommended good parts like a nodular third member and good aftermarkey front pinion support and maybe even a back brace, if Dom will pay for that part


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: FORD 8.8 REAR................ [Re: Cab_Burge] #1702580
11/28/14 10:18 PM
11/28/14 10:18 PM
Joined: Jan 2003
Posts: 32,394
Q
Quicktree Offline
I Win
Quicktree  Offline
I Win
Q

Joined: Jan 2003
Posts: 32,394
sure you have because they out number truck rear ends about a million to 1 at any race track

Re: FORD 8.8 REAR................ [Re: Cab_Burge] #1702581
11/28/14 10:27 PM
11/28/14 10:27 PM
Joined: Jul 2004
Posts: 19,317
State of confusion
T
Thumperdart Offline OP
I Live Here
Thumperdart  Offline OP
I Live Here
T

Joined: Jul 2004
Posts: 19,317
State of confusion
Don`t worry guys, I`ll do my best to grenade it next Sun. if I make the Fontana T&T..................


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: FORD 8.8 REAR................ [Re: astjp2] #1702582
11/28/14 10:28 PM
11/28/14 10:28 PM
Joined: Jan 2003
Posts: 9,986
Frostbitefalls MN (Rocky&Bullw...
gregsdart Offline
master
gregsdart  Offline
master

Joined: Jan 2003
Posts: 9,986
Frostbitefalls MN (Rocky&Bullw...
Quote:

I would get a jy dana 70, 40 spline axles and put ford ends on with explorer or crown vic brakes. 10.5 ring gear and no heaver than the 60....and it comes with .5 thick tubes. You could build this for about $900 if you get a deal on a housing with the gears you want.

I got my 60 for $75, it was 600 to narrow and shafts from Dutchman. Pick your locker/posi unit and gears, you may get lucky and get what you want from the yard.... Brakes were $80 for the explorer discs I got a 3.55 r&p for $55, real Dana, so with a little work you can get a real nice setup fairly affordable...that will be indestructible.
Tim



Well, not indestructible, but it will take quite a beating !
I ran a 4.10 geared stock Dana with a clutch type posi, shimmed so the clutch packs were locked solid. Wulla! instant cheap spool! That and a pair of spring perches, and axle ends to weld on and you are ready to go. The drive shafts might inter change as well or need a cross over joint. If the clearance is a little tight to the tranny a few shims behind the spring hangers take care of that.
Dom, I doubt I changed your mind, but posted this for those who might need a poor mans rear end swap! Hope you find exactly what you want!


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: FORD 8.8 REAR................ [Re: gregsdart] #1702583
11/28/14 11:37 PM
11/28/14 11:37 PM
Joined: Jul 2004
Posts: 19,317
State of confusion
T
Thumperdart Offline OP
I Live Here
Thumperdart  Offline OP
I Live Here
T

Joined: Jul 2004
Posts: 19,317
State of confusion
I`m still thinking openly about it but this 9 deal is sweet.............


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Page 3 of 9 1 2 3 4 5 6 7 8 9






Powered by UBB.threads™ PHP Forum Software 7.7.1