Auto Transmission for a diesel conversion
Auto Transmission for a diesel conversion
I am sure this is wishful thinking...but if I have to replace my transmission is there a different transmission that I can hook up with the v6 that would work with a cummins 4bt or other diesel? Preferably a 5 speed auto or manual.
New owner of a 1996 Astro named "Plain Jane" - stock right now - with 200,000 miles on it and running like a champ
Re: Auto Transmission for a diesel conversion
any GM transmission that will fit your 4.3 will fit a 4BT with an adapter (the same adapter that is usually attached to the 4BT's in the Grumman vans) but your 4L60E is propably a little light for a 4BT
'98 Mercedes E300 Turbo Diesel
'89 4Runner SAS'ed, 38.5SX's, Mercedes OM617 Turbo Diesel
'98 Suburban K2500, Cummins 24Valve, 5spd 4x4
'03 VW Jetta TDI
'78 Vette 350 4spd
www.vehiclefleetsolutions.ca
'89 4Runner SAS'ed, 38.5SX's, Mercedes OM617 Turbo Diesel
'98 Suburban K2500, Cummins 24Valve, 5spd 4x4
'03 VW Jetta TDI
'78 Vette 350 4spd
www.vehiclefleetsolutions.ca
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Re: Auto Transmission for a diesel conversion
The 4l60e is meant for vehicles up to 6000lbs GVW and is rated for engines up to 360 ft/lbs of torque. GM also used this tranny in some trucks that had a 8600lb GVW.
The 4bt has a stock output of 105hp@165ft/lbs. of torque.
The 4l60e will handle a stock 4bt no problem.
Peter
The 4bt has a stock output of 105hp@165ft/lbs. of torque.
The 4l60e will handle a stock 4bt no problem.
Peter
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Re: Auto Transmission for a diesel conversion
It will handle stock torque but what would be the point of dropping in a diesel with less torque? It would be so slow you could push it faster! A 4BT is so easy and cheap to mod and make 300 plus torque it isn't funny!
Current rides:
2013 Toyota Tundra DC 4x4
2008 Dodge Nitro 4x4
2005 Nissan Sentra 1.8S Special Edition
Mileage spreadsheet
Vans owned:
1986 Safari 2.5L 4 speed manual - scrapped
1995 Astro 2WD conversion 4.11 posi, shift kit, DHC rock rails - sold to Skippy
1998 Astro 4x4 D44, D60, NP231, full hydraulic system with 9k# Milemarker winch and snow plow - sold to Lockdoc
2003 Astro AWD all stock - traded for a 3/4 ton truck
2005 AWD, 4.10's - sold to skippy
2013 Toyota Tundra DC 4x4
2008 Dodge Nitro 4x4
2005 Nissan Sentra 1.8S Special Edition
Mileage spreadsheet
Vans owned:
1986 Safari 2.5L 4 speed manual - scrapped
1995 Astro 2WD conversion 4.11 posi, shift kit, DHC rock rails - sold to Skippy
1998 Astro 4x4 D44, D60, NP231, full hydraulic system with 9k# Milemarker winch and snow plow - sold to Lockdoc
2003 Astro AWD all stock - traded for a 3/4 ton truck
2005 AWD, 4.10's - sold to skippy
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- Joined: Mon Sep 29, 2008 8:35 am
- Location: Victoria B.C.
Re: Auto Transmission for a diesel conversion
waste veggie oil...... not to mention the better fuel econ to begin with.Kabey's Van wrote:Well, what's the point of putting a diesel in anyway.
ya if you find yourself a 4L60-E that came out of a v8 truck then it will handle it with out any problems.... A v6 one will work too but the v8 one has a larger clutch pack and accumulator springs.
The tranny in my old suburban was a 4L60... It was behind a 6.2L diesel pushing about 7000LBs of truck around.
Dean is so right.
The gen 1s only needed a 12v wire run to the fuel pump to run it and turning certain screws on the bosch pumps especially can almost double the output of the engine. Then you can start on other small mods that will really crank that sucker up.
I've heard tales of them running at 90 PSI boost too.
98 Safari RWD. Stock.
Do you smell what Barack is cookin ?!?!
Do you smell what Barack is cookin ?!?!
Re: Auto Transmission for a diesel conversion
Thanks! Maybe the stock tranny can handle a diesel but is it going to be happy for a long time? I am guessing that the first two things to go on my astro are going to be the power steering pump or the tranny. When the tranny goes I want to be able to drop another tranny into the stro that will (hopefully) not need an adapter to work with the 4.3 v6, will be able to accept 380 ft pnds of torque on a regular basis and hopefully will be a 5 speed, but the wallet may determine 4 speed.
Any suggestions?
Any suggestions?
New owner of a 1996 Astro named "Plain Jane" - stock right now - with 200,000 miles on it and running like a champ
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Re: Auto Transmission for a diesel conversion
lets not forget that diesels dont rev very high. tranny will need to be geared lower
crate 350 bored .60 over, 700R4, lifted...yada yada yada. Who cares what i have, ITS FAST AND I LOVE DRIVING IT!!!
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Re: Auto Transmission for a diesel conversion
Usually diesels will use the same gears in the tranny and use a lower gear in the differentials. The 3.42 and 3.23 rears that are vans use will actually work just fine.
Aaron
2005 Astro (Gandalf) - AWD, 4.3L, 3.42, 130k+ miles
1997 Astro (Grumpy - $250 Rally Van) - AWD, 4.3L, 3.42, LSD, 2" lift, 31" tires, 335k+ orig engine, $30 eBay fuel pump
Prev Astros:99,97,00,94,87,86
2005 Astro (Gandalf) - AWD, 4.3L, 3.42, 130k+ miles
1997 Astro (Grumpy - $250 Rally Van) - AWD, 4.3L, 3.42, LSD, 2" lift, 31" tires, 335k+ orig engine, $30 eBay fuel pump
Prev Astros:99,97,00,94,87,86
Re: Auto Transmission for a diesel conversion
you will definatly need a lower stall speed for the torque converter
'98 Mercedes E300 Turbo Diesel
'89 4Runner SAS'ed, 38.5SX's, Mercedes OM617 Turbo Diesel
'98 Suburban K2500, Cummins 24Valve, 5spd 4x4
'03 VW Jetta TDI
'78 Vette 350 4spd
www.vehiclefleetsolutions.ca
'89 4Runner SAS'ed, 38.5SX's, Mercedes OM617 Turbo Diesel
'98 Suburban K2500, Cummins 24Valve, 5spd 4x4
'03 VW Jetta TDI
'78 Vette 350 4spd
www.vehiclefleetsolutions.ca