14 bolt lokcer ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

stan79chevy · 05-24-2004, 12:26 AM

ok firts off im in the middle of a transmission, transfer case, axle swap. also going to lift it 4" and put on 35,s instead of 33's.
i have a 14 bolt ff rear with 4.56 gears and a detroit locker is 380-450 depending on where you get it. drive train direct makes a 14 bolt mimi spool for 189. what is teh difference in that and a detroit other than a couple hundred dollars.

thanks
stan

Blazer1970 · 05-24-2004, 06:56 AM

The DL allows the differential to work when turning corners while the spool does not.

LONGHAIR · 05-24-2004, 12:31 PM

The spool will be really hard to deal with on the street, especially with a tire that large. There is NO slippage with a spool and it will cause greater tire wear. It can cause erratic steering too, generally a "push", which also increases front tire wear.

A Detroit Locker can do the same thing, more so than other "posi-traction" type units. If you do not decelerate or at least lift the throttle slightly the unit stays locked and acts like a spool (locked solid). Lifting the throttle enough to allow the truck to coast will allow the unit to unlock the slower (inside) wheel. This can cause noticeable "clunk". Detroit Lockers are far smoother than a Spool, but you WILL know that it is back there.

Mike C · 05-24-2004, 10:00 PM

I have a FF Detroit for sale. It has never been run, but is currently installed in an open diff on the floor in my shop. $300 plus shipping if interestd.

stan79chevy · 05-25-2004, 01:00 AM

and when i drove it i never noticed it unlock at all. it seemed to be locked all the time especially on the corners. the rear tire made little chirps in the parking lot driving at around 5 mph.Mike C i would love to buy it but there is a possibillity i may be getting laid off soon and i cant spend that kind of money until i know for sure. im just researching this stuff right now. if you still have it in a few weeks when i know for sure let me know. are there different ones for different gear ratios? i will have 4.56 the pinion has 9 ring has 41.

Mike C · 05-25-2004, 09:53 PM

The Detroit for the 14 bolt actually uses the open case. Goes inside pretty much like the Lok-Right. That's why the 14 bolt locker is the cheapest Detroit. All of the others come with a new case.

**JIMs70GMC** · 05-26-2004, 05:34 AM

Driving that slow will probably not force it to un-lock. I got a friend w/ a detroit in his 79 and it unlocks when you get up to speed. 15-20 mph through a turn. It actually force the outside tire to tuirn faster than the drive shaft speed.

05-24-2004, 12:26 AM	#1
stan79chevy Registered User Join Date: Sep 2003 Location: COVINGTON GEORGIA Posts: 477	14 bolt lokcer ? ok firts off im in the middle of a transmission, transfer case, axle swap. also going to lift it 4" and put on 35,s instead of 33's. i have a 14 bolt ff rear with 4.56 gears and a detroit locker is 380-450 depending on where you get it. drive train direct makes a 14 bolt mimi spool for 189. what is teh difference in that and a detroit other than a couple hundred dollars. thanks stan __________________ 79 chevy k20 350/350/205/D44/14bFF 4.56 gears rock LWB pimer black 01 S-10 ZR2 extended cab 4.3/4L60E/233 3.73 gear 31" DICK CEPEK CRUSHERS

05-24-2004, 06:56 AM	#2
Blazer1970 Registered User Join Date: Dec 1999 Location: Old Mission, MI, USA Posts: 2,507	The DL allows the differential to work when turning corners while the spool does not. __________________ Tim

05-24-2004, 10:00 PM	#4
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,728	I have a FF Detroit for sale. It has never been run, but is currently installed in an open diff on the floor in my shop. $300 plus shipping if interestd. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

05-25-2004, 01:00 AM	#5
stan79chevy Registered User Join Date: Sep 2003 Location: COVINGTON GEORGIA Posts: 477	my brother in laws truck has a detroit locker and when i drove it i never noticed it unlock at all. it seemed to be locked all the time especially on the corners. the rear tire made little chirps in the parking lot driving at around 5 mph.Mike C i would love to buy it but there is a possibillity i may be getting laid off soon and i cant spend that kind of money until i know for sure. im just researching this stuff right now. if you still have it in a few weeks when i know for sure let me know. are there different ones for different gear ratios? i will have 4.56 the pinion has 9 ring has 41. __________________ 79 chevy k20 350/350/205/D44/14bFF 4.56 gears rock LWB pimer black 01 S-10 ZR2 extended cab 4.3/4L60E/233 3.73 gear 31" DICK CEPEK CRUSHERS

05-25-2004, 09:53 PM	#6
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,728	The Detroit for the 14 bolt actually uses the open case. Goes inside pretty much like the Lok-Right. That's why the 14 bolt locker is the cheapest Detroit. All of the others come with a new case. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

05-24-2004, 12:31 PM	#3
LONGHAIR just can't cover up my redneck Join Date: May 2004 Location: Columbus OH Posts: 11,414	The spool will be really hard to deal with on the street, especially with a tire that large. There is NO slippage with a spool and it will cause greater tire wear. It can cause erratic steering too, generally a "push", which also increases front tire wear. A Detroit Locker can do the same thing, more so than other "posi-traction" type units. If you do not decelerate or at least lift the throttle slightly the unit stays locked and acts like a spool (locked solid). Lifting the throttle enough to allow the truck to coast will allow the unit to unlock the slower (inside) wheel. This can cause noticeable "clunk". Detroit Lockers are far smoother than a Spool, but you WILL know that it is back there.

05-26-2004, 05:34 AM	#7
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Driving that slow will probably not force it to un-lock. I got a friend w/ a detroit in his 79 and it unlocks when you get up to speed. 15-20 mph through a turn. It actually force the outside tire to tuirn faster than the drive shaft speed. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.